./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22ccde2ce516925ebfe813d783d47f1167b5115e5910734aa9e1bf526ce8c733 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:59:07,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:59:07,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:59:07,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:59:07,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:59:07,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:59:07,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:59:07,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:59:07,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:59:07,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:59:07,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:59:07,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:59:07,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:59:07,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:59:07,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:59:07,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:59:07,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:59:07,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:59:07,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:59:07,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:59:07,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:59:07,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:59:07,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:59:07,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:59:07,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:59:07,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:59:07,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:59:07,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:59:07,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:59:07,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:59:07,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:59:07,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:59:07,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:59:07,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:59:07,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:59:07,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:59:07,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:59:07,949 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:59:07,949 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:59:07,950 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:59:07,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:59:07,953 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-13 18:59:08,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:59:08,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:59:08,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:59:08,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:59:08,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:59:08,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:59:08,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:59:08,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:59:08,007 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:59:08,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:59:08,009 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:59:08,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:59:08,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:59:08,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:59:08,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:59:08,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:59:08,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:59:08,011 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:59:08,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:59:08,011 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:59:08,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:59:08,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:59:08,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:59:08,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-13 18:59:08,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:59:08,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:59:08,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:59:08,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:59:08,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:59:08,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:59:08,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:59:08,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:59:08,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-13 18:59:08,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:59:08,017 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-13 18:59:08,018 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-13 18:59:08,018 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_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22ccde2ce516925ebfe813d783d47f1167b5115e5910734aa9e1bf526ce8c733 [2021-11-13 18:59:08,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:59:08,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:59:08,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:59:08,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:59:08,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:59:08,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/../../sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2021-11-13 18:59:08,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/data/1806f8aa1/cbd43595ca5148a3854804b58547703f/FLAG56b3af426 [2021-11-13 18:59:09,025 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:59:09,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i [2021-11-13 18:59:09,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/data/1806f8aa1/cbd43595ca5148a3854804b58547703f/FLAG56b3af426 [2021-11-13 18:59:09,314 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/data/1806f8aa1/cbd43595ca5148a3854804b58547703f [2021-11-13 18:59:09,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:59:09,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:59:09,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:59:09,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:59:09,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:59:09,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:59:09" (1/1) ... [2021-11-13 18:59:09,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d6fb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:09, skipping insertion in model container [2021-11-13 18:59:09,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:59:09" (1/1) ... [2021-11-13 18:59:09,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:59:09,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:59:09,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i[30336,30349] [2021-11-13 18:59:09,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:59:09,934 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:59:09,995 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/sv-benchmarks/c/pthread-ext/47_ticket_lock_hc_backoff_vs.i[30336,30349] [2021-11-13 18:59:09,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:59:10,036 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:59:10,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10 WrapperNode [2021-11-13 18:59:10,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:59:10,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:59:10,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:59:10,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:59:10,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:59:10,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:59:10,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:59:10,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:59:10,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:59:10,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:59:10,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:59:10,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:59:10,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (1/1) ... [2021-11-13 18:59:10,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:59:10,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:10,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:59:10,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:59:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:59:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-13 18:59:10,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-13 18:59:10,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:59:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:59:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:59:10,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:59:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:59:10,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:59:10,225 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:59:10,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:59:10,798 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-13 18:59:10,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:59:10 BoogieIcfgContainer [2021-11-13 18:59:10,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:59:10,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:59:10,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:59:10,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:59:10,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:59:09" (1/3) ... [2021-11-13 18:59:10,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448773d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:59:10, skipping insertion in model container [2021-11-13 18:59:10,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:59:10" (2/3) ... [2021-11-13 18:59:10,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448773d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:59:10, skipping insertion in model container [2021-11-13 18:59:10,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:59:10" (3/3) ... [2021-11-13 18:59:10,814 INFO L111 eAbstractionObserver]: Analyzing ICFG 47_ticket_lock_hc_backoff_vs.i [2021-11-13 18:59:10,844 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:59:10,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:59:10,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 18:59:10,845 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:59:10,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,877 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,877 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,877 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,878 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,878 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,878 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,878 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,880 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,880 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,880 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,881 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,881 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,881 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,882 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,882 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,882 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,882 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,883 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,883 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,883 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,883 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,884 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,884 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,884 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,884 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,885 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,885 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,885 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,886 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,886 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,886 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,887 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,887 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,887 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,888 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,888 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,888 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,888 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,889 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,889 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,889 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,890 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,890 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,890 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,890 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,891 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,891 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,891 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,891 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,892 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,892 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,892 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,893 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,893 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,896 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,897 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,897 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,897 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,898 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,898 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,898 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,898 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,899 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,900 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:59:10,901 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 18:59:10,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 18:59:10,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:10,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 18:59:10,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-13 18:59:11,014 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-11-13 18:59:11,020 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:59:11,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:59:11,185 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:11,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:11,196 INFO L85 PathProgramCache]: Analyzing trace with hash 479499207, now seen corresponding path program 1 times [2021-11-13 18:59:11,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:11,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053566908] [2021-11-13 18:59:11,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:11,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:59:11,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:11,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053566908] [2021-11-13 18:59:11,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053566908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:11,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:11,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:59:11,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209557971] [2021-11-13 18:59:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:11,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:59:11,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:59:11,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:59:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:11,555 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:11,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 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) [2021-11-13 18:59:11,557 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:11,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:11,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:59:11,587 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:11,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:11,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1505552906, now seen corresponding path program 1 times [2021-11-13 18:59:11,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:11,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592826626] [2021-11-13 18:59:11,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:11,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:59:11,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:11,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592826626] [2021-11-13 18:59:11,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592826626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:11,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:59:11,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:59:11,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428277033] [2021-11-13 18:59:11,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:11,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:59:11,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:59:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:59:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:11,791 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:11,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:11,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:12,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:59:12,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2091457107, now seen corresponding path program 1 times [2021-11-13 18:59:12,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:12,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669865647] [2021-11-13 18:59:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:12,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 80 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 18:59:12,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:12,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669865647] [2021-11-13 18:59:12,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669865647] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:12,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404772338] [2021-11-13 18:59:12,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:12,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:12,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:12,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:59:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:12,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-13 18:59:13,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:59:13,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 18:59:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 18:59:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 80 proven. 13 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 18:59:14,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:59:14,641 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-13 18:59:14,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404772338] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:14,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:59:14,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 13] total 24 [2021-11-13 18:59:14,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460252844] [2021-11-13 18:59:14,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:14,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:59:14,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:14,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:59:14,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:59:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:14,646 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:14,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:14,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:14,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:14,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:15,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:59:15,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:15,503 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:15,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:15,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1912770198, now seen corresponding path program 1 times [2021-11-13 18:59:15,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:15,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097676348] [2021-11-13 18:59:15,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:15,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 165 proven. 29 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-13 18:59:16,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:16,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097676348] [2021-11-13 18:59:16,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097676348] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:16,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361884010] [2021-11-13 18:59:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:16,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:16,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:16,036 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:16,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:59:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:16,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-13 18:59:16,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:59:16,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 18:59:17,209 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 18:59:17,210 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 32 treesize of output 27 [2021-11-13 18:59:17,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 18:59:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 165 proven. 29 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-11-13 18:59:17,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:59:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 166 proven. 18 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-11-13 18:59:18,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361884010] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:59:18,352 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:59:18,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 10] total 31 [2021-11-13 18:59:18,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886271916] [2021-11-13 18:59:18,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:59:18,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-13 18:59:18,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-13 18:59:18,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2021-11-13 18:59:18,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:18,358 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:18,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.806451612903226) internal successors, (211), 31 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:18,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:19,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:19,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:19,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:19,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:59:19,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:19,742 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:19,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:19,742 INFO L85 PathProgramCache]: Analyzing trace with hash 532231202, now seen corresponding path program 2 times [2021-11-13 18:59:19,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:19,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030340496] [2021-11-13 18:59:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:19,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 532 proven. 252 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-11-13 18:59:20,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:20,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030340496] [2021-11-13 18:59:20,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030340496] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:20,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516074294] [2021-11-13 18:59:20,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:59:20,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:20,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:20,447 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:20,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:59:20,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:59:20,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:59:20,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 101 conjunts are in the unsatisfiable core [2021-11-13 18:59:20,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:59:24,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 18:59:24,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 18:59:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 39 proven. 974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:59:24,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:59:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 39 proven. 643 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2021-11-13 18:59:27,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516074294] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:59:27,611 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:59:27,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 48, 15] total 73 [2021-11-13 18:59:27,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130355593] [2021-11-13 18:59:27,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:59:27,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-13 18:59:27,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:27,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-13 18:59:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=4894, Unknown=0, NotChecked=0, Total=5256 [2021-11-13 18:59:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:27,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:27,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 7.013698630136986) internal successors, (512), 73 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:27,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:27,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:27,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:27,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:27,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:37,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:37,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:37,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-13 18:59:37,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-13 18:59:38,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:38,158 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:38,158 INFO L85 PathProgramCache]: Analyzing trace with hash -151845227, now seen corresponding path program 3 times [2021-11-13 18:59:38,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:38,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830235227] [2021-11-13 18:59:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:38,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7768 backedges. 3918 proven. 475 refuted. 0 times theorem prover too weak. 3375 trivial. 0 not checked. [2021-11-13 18:59:40,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:40,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830235227] [2021-11-13 18:59:40,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830235227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:40,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742346382] [2021-11-13 18:59:40,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 18:59:40,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:40,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:40,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:40,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 18:59:40,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-13 18:59:40,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:59:40,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-13 18:59:40,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:59:42,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 18:59:42,464 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 18:59:42,465 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 29 treesize of output 28 [2021-11-13 18:59:42,549 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 21 treesize of output 13 [2021-11-13 18:59:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 7768 backedges. 1020 proven. 0 refuted. 0 times theorem prover too weak. 6748 trivial. 0 not checked. [2021-11-13 18:59:42,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:59:42,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742346382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:59:42,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:59:42,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 26 [2021-11-13 18:59:42,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395007359] [2021-11-13 18:59:42,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:42,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 18:59:42,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:42,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 18:59:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-11-13 18:59:42,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:42,651 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:42,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.76923076923077) internal successors, (114), 13 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2021-11-13 18:59:42,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-13 18:59:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:59:43,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:59:43,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-13 18:59:43,194 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:43,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash 478517775, now seen corresponding path program 1 times [2021-11-13 18:59:43,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:43,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773891352] [2021-11-13 18:59:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:43,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 8943 backedges. 4430 proven. 475 refuted. 0 times theorem prover too weak. 4038 trivial. 0 not checked. [2021-11-13 18:59:44,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:44,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773891352] [2021-11-13 18:59:44,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773891352] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:44,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833995435] [2021-11-13 18:59:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:44,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:44,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:44,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:44,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 18:59:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:45,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 220 conjunts are in the unsatisfiable core [2021-11-13 18:59:45,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:59:54,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 18:59:54,654 INFO L134 CoverageAnalysis]: Checked inductivity of 8943 backedges. 3999 proven. 4126 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2021-11-13 18:59:54,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:59:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 8943 backedges. 4131 proven. 0 refuted. 0 times theorem prover too weak. 4812 trivial. 0 not checked. [2021-11-13 18:59:56,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833995435] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:56,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 18:59:56,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 96] total 110 [2021-11-13 18:59:56,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302365349] [2021-11-13 18:59:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:59:56,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:59:56,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:59:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:59:56,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=455, Invalid=11535, Unknown=0, NotChecked=0, Total=11990 [2021-11-13 18:59:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:56,121 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 18:59:56,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:59:56,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:56,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:56,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:56,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:56,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2021-11-13 18:59:56,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:59:56,123 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:59:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:59:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 18:59:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 18:59:56,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-13 18:59:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:59:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:59:56,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:59:57,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:57,110 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:59:57,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:59:57,110 INFO L85 PathProgramCache]: Analyzing trace with hash -517883568, now seen corresponding path program 2 times [2021-11-13 18:59:57,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:59:57,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093575811] [2021-11-13 18:59:57,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:59:57,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:59:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:59:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6988 backedges. 3479 proven. 926 refuted. 0 times theorem prover too weak. 2583 trivial. 0 not checked. [2021-11-13 18:59:58,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:59:58,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093575811] [2021-11-13 18:59:58,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093575811] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:59:58,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801190759] [2021-11-13 18:59:58,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 18:59:58,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:59:58,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 18:59:58,786 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:59:58,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 18:59:59,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 18:59:59,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 18:59:59,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 233 conjunts are in the unsatisfiable core [2021-11-13 18:59:59,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:00:09,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:00:09,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:00:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 6988 backedges. 94 proven. 6890 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-13 19:00:09,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:00:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6988 backedges. 94 proven. 4996 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2021-11-13 19:00:17,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801190759] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:00:17,632 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:00:17,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 114, 23] total 144 [2021-11-13 19:00:17,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549244615] [2021-11-13 19:00:17,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:00:17,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 144 states [2021-11-13 19:00:17,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:00:17,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2021-11-13 19:00:17,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1114, Invalid=19478, Unknown=0, NotChecked=0, Total=20592 [2021-11-13 19:00:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:17,644 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:00:17,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 144 states, 144 states have (on average 7.0) internal successors, (1008), 144 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:00:17,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:02:01,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:03:22,616 WARN L227 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-13 19:03:41,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:05:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-13 19:05:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-13 19:05:39,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2021-11-13 19:05:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 19:05:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:05:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 434 states. [2021-11-13 19:05:39,096 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 19:05:39,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-13 19:05:39,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-13 19:05:39,322 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2021-11-13 19:05:39,324 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/2) [2021-11-13 19:05:39,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 19:05:39,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:05:39,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 19:05:39,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (9)] Waiting until timeout for monitored process [2021-11-13 19:05:39,354 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 19:05:39,355 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 19:05:39,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 19:05:39,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:39,360 INFO L85 PathProgramCache]: Analyzing trace with hash 253472294, now seen corresponding path program 1 times [2021-11-13 19:05:39,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:39,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534242144] [2021-11-13 19:05:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:39,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:39,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 19:05:39,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:39,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534242144] [2021-11-13 19:05:39,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534242144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:05:39,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:05:39,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 19:05:39,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437976083] [2021-11-13 19:05:39,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:05:39,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 19:05:39,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:39,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 19:05:39,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 19:05:39,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,376 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:39,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:39,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 19:05:39,381 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:39,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash 686024596, now seen corresponding path program 1 times [2021-11-13 19:05:39,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:39,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773648555] [2021-11-13 19:05:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:39,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 19:05:39,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:39,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773648555] [2021-11-13 19:05:39,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773648555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:05:39,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:05:39,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 19:05:39,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254182719] [2021-11-13 19:05:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:05:39,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 19:05:39,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:39,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 19:05:39,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 19:05:39,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,406 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:39,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:39,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:39,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 19:05:39,534 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1348974463, now seen corresponding path program 1 times [2021-11-13 19:05:39,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:39,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224467982] [2021-11-13 19:05:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:39,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 80 proven. 11 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-13 19:05:39,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:39,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224467982] [2021-11-13 19:05:39,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224467982] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:05:39,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409597023] [2021-11-13 19:05:39,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:39,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:39,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:05:39,685 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:05:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 19:05:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:39,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-13 19:05:39,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:05:40,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 19:05:40,317 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 19:05:40,317 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 36 treesize of output 31 [2021-11-13 19:05:40,375 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 28 treesize of output 16 [2021-11-13 19:05:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 58 proven. 78 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 19:05:40,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:05:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-13 19:05:40,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409597023] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 19:05:40,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 19:05:40,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 14] total 27 [2021-11-13 19:05:40,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486927199] [2021-11-13 19:05:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:05:40,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 19:05:40,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 19:05:40,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-11-13 19:05:40,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:40,753 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:40,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:40,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:40,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:40,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:41,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:05:41,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 19:05:41,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:41,389 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:41,390 INFO L85 PathProgramCache]: Analyzing trace with hash 355304659, now seen corresponding path program 1 times [2021-11-13 19:05:41,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:41,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487754254] [2021-11-13 19:05:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:41,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 27 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-13 19:05:41,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:41,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487754254] [2021-11-13 19:05:41,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487754254] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:05:41,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955597425] [2021-11-13 19:05:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:41,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:41,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:05:41,601 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:05:41,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 19:05:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:41,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-13 19:05:41,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:05:42,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:05:42,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:05:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 27 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-13 19:05:42,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:05:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 16 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-13 19:05:43,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955597425] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:05:43,007 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:05:43,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 9] total 27 [2021-11-13 19:05:43,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753806333] [2021-11-13 19:05:43,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:05:43,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 19:05:43,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:43,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 19:05:43,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2021-11-13 19:05:43,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:43,010 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:43,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.2592592592592595) internal successors, (196), 27 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:05:43,010 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:05:43,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:05:43,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 19:05:43,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-13 19:05:43,891 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:43,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1433399869, now seen corresponding path program 2 times [2021-11-13 19:05:43,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:43,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710676418] [2021-11-13 19:05:43,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:43,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:44,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 597 proven. 117 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-13 19:05:44,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:44,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710676418] [2021-11-13 19:05:44,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710676418] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:05:44,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964721891] [2021-11-13 19:05:44,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 19:05:44,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:44,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:05:44,372 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:05:44,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-13 19:05:44,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 19:05:44,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:05:44,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 107 conjunts are in the unsatisfiable core [2021-11-13 19:05:44,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:05:47,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:05:47,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:05:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 37 proven. 1051 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 19:05:47,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:05:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 37 proven. 704 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-13 19:05:49,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964721891] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:05:49,384 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:05:49,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 51, 14] total 73 [2021-11-13 19:05:49,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951078335] [2021-11-13 19:05:49,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:05:49,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-13 19:05:49,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:49,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-13 19:05:49,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=4882, Unknown=0, NotChecked=0, Total=5256 [2021-11-13 19:05:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:49,390 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:49,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.931506849315069) internal successors, (506), 73 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:49,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:49,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:49,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:05:49,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:05:49,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:05:53,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:05:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-13 19:05:53,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-13 19:05:53,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:53,623 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:05:53,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:05:53,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1827394283, now seen corresponding path program 3 times [2021-11-13 19:05:53,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:05:53,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829452434] [2021-11-13 19:05:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:05:53,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:05:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:05:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 2250 proven. 818 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-13 19:05:54,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:05:54,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829452434] [2021-11-13 19:05:54,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829452434] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:05:54,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285277357] [2021-11-13 19:05:54,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 19:05:54,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:05:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:05:54,505 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:05:54,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-13 19:05:54,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-13 19:05:54,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:05:54,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-13 19:05:54,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:05:55,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 19:05:55,925 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 19:05:55,925 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 34 treesize of output 33 [2021-11-13 19:05:56,000 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 17 treesize of output 9 [2021-11-13 19:05:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 1157 proven. 9 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 19:05:56,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:05:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 1157 proven. 9 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 19:05:57,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285277357] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:05:57,113 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:05:57,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 11] total 35 [2021-11-13 19:05:57,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079006683] [2021-11-13 19:05:57,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:05:57,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-13 19:05:57,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:05:57,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-13 19:05:57,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1086, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 19:05:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:57,117 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:05:57,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.285714285714286) internal successors, (290), 35 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-13 19:05:57,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:06:10,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-13 19:06:10,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:11,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-13 19:06:11,184 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash -736232700, now seen corresponding path program 1 times [2021-11-13 19:06:11,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:11,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348071683] [2021-11-13 19:06:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:11,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 19:06:11,214 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 19:06:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 19:06:11,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 19:06:11,246 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 19:06:11,246 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2021-11-13 19:06:11,246 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-13 19:06:11,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 19:06:11,248 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2021-11-13 19:06:11,248 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN (2/2) [2021-11-13 19:06:11,249 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-11-13 19:06:11,249 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-11-13 19:06:11,261 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,262 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,263 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,263 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,263 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,264 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,265 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,266 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,267 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,268 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,281 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,282 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,288 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,289 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,290 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,291 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 19:06:11,291 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-13 19:06:11,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-13 19:06:11,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:11,306 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-13 19:06:11,314 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-13 19:06:11,315 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=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 19:06:11,315 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 19:06:11,318 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:11,319 INFO L85 PathProgramCache]: Analyzing trace with hash -557993436, now seen corresponding path program 1 times [2021-11-13 19:06:11,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:11,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215199767] [2021-11-13 19:06:11,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:11,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:11,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (14)] Waiting until timeout for monitored process [2021-11-13 19:06:11,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 19:06:11,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:11,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215199767] [2021-11-13 19:06:11,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215199767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:06:11,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:06:11,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 19:06:11,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031679665] [2021-11-13 19:06:11,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:06:11,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 19:06:11,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:11,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 19:06:11,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 19:06:11,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,336 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:11,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:11,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 19:06:11,339 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1515883692, now seen corresponding path program 1 times [2021-11-13 19:06:11,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:11,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858083472] [2021-11-13 19:06:11,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:11,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 19:06:11,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:11,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858083472] [2021-11-13 19:06:11,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858083472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:06:11,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:06:11,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 19:06:11,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251498861] [2021-11-13 19:06:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:06:11,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 19:06:11,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:11,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 19:06:11,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 19:06:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,363 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:11,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:11,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:11,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 19:06:11,516 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:11,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1119163567, now seen corresponding path program 1 times [2021-11-13 19:06:11,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:11,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069167514] [2021-11-13 19:06:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 80 proven. 11 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-13 19:06:11,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:11,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069167514] [2021-11-13 19:06:11,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069167514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:11,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72607775] [2021-11-13 19:06:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:11,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:11,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:11,662 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:11,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-13 19:06:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:11,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-13 19:06:11,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:11,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 19:06:12,234 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 19:06:12,235 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 30 treesize of output 29 [2021-11-13 19:06:12,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-13 19:06:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 58 proven. 78 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 19:06:12,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:06:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-13 19:06:12,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72607775] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:12,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 19:06:12,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 14] total 27 [2021-11-13 19:06:12,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488669536] [2021-11-13 19:06:12,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:06:12,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 19:06:12,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:12,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 19:06:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2021-11-13 19:06:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:12,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:12,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:12,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:12,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:06:12,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:13,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-13 19:06:13,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2138655177, now seen corresponding path program 1 times [2021-11-13 19:06:13,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:13,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348298306] [2021-11-13 19:06:13,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:13,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 27 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-13 19:06:13,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:13,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348298306] [2021-11-13 19:06:13,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348298306] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:13,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621523881] [2021-11-13 19:06:13,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:13,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:13,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:13,397 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:13,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-13 19:06:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:13,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-13 19:06:13,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:14,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:06:14,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:06:14,321 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 27 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-13 19:06:14,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:06:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 207 proven. 16 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2021-11-13 19:06:14,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621523881] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:06:14,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:06:14,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 9] total 27 [2021-11-13 19:06:14,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547787514] [2021-11-13 19:06:14,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:06:14,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 19:06:14,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:14,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 19:06:14,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2021-11-13 19:06:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:14,918 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:14,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 7.2592592592592595) internal successors, (196), 27 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:14,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:14,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:14,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-11-13 19:06:14,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:15,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:15,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:06:15,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:15,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:15,724 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:15,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1757960571, now seen corresponding path program 2 times [2021-11-13 19:06:15,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:15,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885610319] [2021-11-13 19:06:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:15,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 597 proven. 117 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-13 19:06:16,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:16,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885610319] [2021-11-13 19:06:16,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885610319] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:16,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32794077] [2021-11-13 19:06:16,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 19:06:16,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:16,123 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:16,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-13 19:06:16,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 19:06:16,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:06:16,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 107 conjunts are in the unsatisfiable core [2021-11-13 19:06:16,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:18,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:06:18,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:06:18,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 37 proven. 1051 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 19:06:18,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:06:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 37 proven. 704 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-13 19:06:20,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32794077] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:06:20,896 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:06:20,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 51, 14] total 73 [2021-11-13 19:06:20,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118559446] [2021-11-13 19:06:20,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:06:20,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-13 19:06:20,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:20,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-13 19:06:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=374, Invalid=4882, Unknown=0, NotChecked=0, Total=5256 [2021-11-13 19:06:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:20,899 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:20,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.931506849315069) internal successors, (506), 73 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:20,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:20,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:20,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:20,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:06:20,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:25,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:06:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-13 19:06:25,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:25,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:25,240 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:25,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1201034353, now seen corresponding path program 3 times [2021-11-13 19:06:25,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:25,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400295135] [2021-11-13 19:06:25,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:25,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 2250 proven. 818 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2021-11-13 19:06:26,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:26,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400295135] [2021-11-13 19:06:26,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400295135] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:26,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414808690] [2021-11-13 19:06:26,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-13 19:06:26,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:26,076 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:26,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-13 19:06:26,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-13 19:06:26,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:06:26,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-13 19:06:26,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:27,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 19:06:27,398 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 19:06:27,399 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 38 treesize of output 33 [2021-11-13 19:06:27,470 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 17 treesize of output 9 [2021-11-13 19:06:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 1157 proven. 9 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 19:06:27,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:06:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 1157 proven. 9 refuted. 0 times theorem prover too weak. 3570 trivial. 0 not checked. [2021-11-13 19:06:28,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414808690] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:06:28,639 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:06:28,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 11] total 35 [2021-11-13 19:06:28,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819805567] [2021-11-13 19:06:28,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:06:28,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-13 19:06:28,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:28,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-13 19:06:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1086, Unknown=0, NotChecked=0, Total=1190 [2021-11-13 19:06:28,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:28,643 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:28,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.285714285714286) internal successors, (290), 35 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:28,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-11-13 19:06:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states. [2021-11-13 19:06:28,644 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:06:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:06:42,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:42,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-13 19:06:42,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 338578959, now seen corresponding path program 1 times [2021-11-13 19:06:42,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:42,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463324392] [2021-11-13 19:06:42,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:42,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1032 proven. 59 refuted. 0 times theorem prover too weak. 1241 trivial. 0 not checked. [2021-11-13 19:06:43,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:43,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463324392] [2021-11-13 19:06:43,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463324392] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:43,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020794670] [2021-11-13 19:06:43,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:43,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:43,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:43,301 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:43,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-13 19:06:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:43,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 99 conjunts are in the unsatisfiable core [2021-11-13 19:06:43,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:45,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:06:45,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:06:46,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1143 proven. 774 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-11-13 19:06:46,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:06:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 1143 proven. 199 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-13 19:06:48,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020794670] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:06:48,021 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:06:48,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 47, 12] total 62 [2021-11-13 19:06:48,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574086199] [2021-11-13 19:06:48,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:06:48,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-13 19:06:48,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:06:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-13 19:06:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=3513, Unknown=0, NotChecked=0, Total=3782 [2021-11-13 19:06:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:48,025 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:06:48,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 6.612903225806452) internal successors, (410), 62 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:06:48,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:48,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:48,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:48,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:06:48,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:06:48,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:06:48,027 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:51,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:06:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:06:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:06:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:06:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:06:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:06:51,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-11-13 19:06:51,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-13 19:06:51,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:51,667 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:06:51,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:06:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1898547945, now seen corresponding path program 1 times [2021-11-13 19:06:51,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:06:51,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582246433] [2021-11-13 19:06:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:51,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:06:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4607 backedges. 2305 proven. 265 refuted. 0 times theorem prover too weak. 2037 trivial. 0 not checked. [2021-11-13 19:06:52,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:06:52,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582246433] [2021-11-13 19:06:52,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582246433] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:06:52,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582304639] [2021-11-13 19:06:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:06:52,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:06:52,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:06:52,458 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:06:52,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-13 19:06:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:06:52,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 167 conjunts are in the unsatisfiable core [2021-11-13 19:06:52,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:06:57,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:06:57,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:06:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4607 backedges. 1794 proven. 2544 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2021-11-13 19:06:57,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:07:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4607 backedges. 1794 proven. 656 refuted. 0 times theorem prover too weak. 2157 trivial. 0 not checked. [2021-11-13 19:07:03,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582304639] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:07:03,379 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:07:03,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 81, 16] total 103 [2021-11-13 19:07:03,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740399207] [2021-11-13 19:07:03,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:07:03,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-11-13 19:07:03,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:07:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-11-13 19:07:03,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=10001, Unknown=0, NotChecked=0, Total=10506 [2021-11-13 19:07:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:03,386 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:07:03,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 6.475728155339806) internal successors, (667), 103 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:07:03,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:03,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:03,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:03,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:03,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:03,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:03,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-11-13 19:07:03,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:11,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:07:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2021-11-13 19:07:11,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-13 19:07:11,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:07:11,919 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:07:11,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:07:11,921 INFO L85 PathProgramCache]: Analyzing trace with hash -60133090, now seen corresponding path program 2 times [2021-11-13 19:07:11,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:07:11,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368712469] [2021-11-13 19:07:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:07:11,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:07:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:07:12,913 INFO L134 CoverageAnalysis]: Checked inductivity of 9823 backedges. 4888 proven. 376 refuted. 0 times theorem prover too weak. 4559 trivial. 0 not checked. [2021-11-13 19:07:12,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:07:12,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368712469] [2021-11-13 19:07:12,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368712469] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:07:12,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17460559] [2021-11-13 19:07:12,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 19:07:12,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:07:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:07:12,915 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:07:12,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-13 19:07:14,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 19:07:14,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:07:14,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2168 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-13 19:07:14,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:07:19,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:07:19,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:07:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9823 backedges. 4892 proven. 3009 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2021-11-13 19:07:19,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:07:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 9823 backedges. 4892 proven. 601 refuted. 0 times theorem prover too weak. 4330 trivial. 0 not checked. [2021-11-13 19:07:23,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17460559] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:07:23,259 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:07:23,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 80, 13] total 99 [2021-11-13 19:07:23,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614628387] [2021-11-13 19:07:23,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:07:23,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-11-13 19:07:23,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:07:23,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-11-13 19:07:23,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=9232, Unknown=0, NotChecked=0, Total=9702 [2021-11-13 19:07:23,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:23,263 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:07:23,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 6.03030303030303) internal successors, (597), 99 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:07:23,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2021-11-13 19:07:23,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:07:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2021-11-13 19:07:28,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:07:28,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-13 19:07:28,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-13 19:07:28,654 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:07:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:07:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash 184290569, now seen corresponding path program 1 times [2021-11-13 19:07:28,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:07:28,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837664986] [2021-11-13 19:07:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:07:28,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:07:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:07:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 3785 proven. 864 refuted. 0 times theorem prover too weak. 3736 trivial. 0 not checked. [2021-11-13 19:07:29,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:07:29,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837664986] [2021-11-13 19:07:29,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837664986] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:07:29,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094634537] [2021-11-13 19:07:29,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:07:29,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:07:29,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:07:29,699 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:07:29,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-13 19:07:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:07:30,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 2041 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-13 19:07:30,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:07:30,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 19:07:30,798 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 19:07:30,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-13 19:07:30,831 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-13 19:07:30,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 21 [2021-11-13 19:07:30,882 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-13 19:07:30,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2021-11-13 19:07:30,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 19:07:30,956 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-13 19:07:30,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-13 19:07:31,060 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 20 treesize of output 12 [2021-11-13 19:07:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 4221 proven. 397 refuted. 0 times theorem prover too weak. 3767 trivial. 0 not checked. [2021-11-13 19:07:31,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:07:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 4247 proven. 10 refuted. 0 times theorem prover too weak. 4128 trivial. 0 not checked. [2021-11-13 19:07:41,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094634537] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:07:41,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:07:41,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 11] total 35 [2021-11-13 19:07:41,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911114826] [2021-11-13 19:07:41,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:07:41,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-13 19:07:41,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:07:41,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-13 19:07:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1083, Unknown=7, NotChecked=0, Total=1190 [2021-11-13 19:07:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:41,514 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:07:41,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 10.228571428571428) internal successors, (358), 35 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:07:41,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:41,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:41,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:41,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:07:41,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:07:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:07:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:07:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:07:50,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-13 19:07:50,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-13 19:07:50,438 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:07:50,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:07:50,440 INFO L85 PathProgramCache]: Analyzing trace with hash 748446237, now seen corresponding path program 1 times [2021-11-13 19:07:50,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:07:50,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328563246] [2021-11-13 19:07:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:07:50,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:07:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:07:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 15841 backedges. 7758 proven. 494 refuted. 0 times theorem prover too weak. 7589 trivial. 0 not checked. [2021-11-13 19:07:54,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:07:54,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328563246] [2021-11-13 19:07:54,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328563246] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:07:54,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726506820] [2021-11-13 19:07:54,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:07:54,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:07:54,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:07:54,474 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:07:54,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-13 19:07:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:07:55,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 333 conjunts are in the unsatisfiable core [2021-11-13 19:07:56,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:08:08,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:08:08,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:08:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 15841 backedges. 4133 proven. 11293 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-11-13 19:08:09,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:08:20,718 INFO L134 CoverageAnalysis]: Checked inductivity of 15841 backedges. 4133 proven. 7885 refuted. 0 times theorem prover too weak. 3823 trivial. 0 not checked. [2021-11-13 19:08:20,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726506820] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:08:20,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:08:20,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 164, 21] total 192 [2021-11-13 19:08:20,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563331377] [2021-11-13 19:08:20,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:08:20,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-11-13 19:08:20,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:08:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-11-13 19:08:20,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1422, Invalid=35250, Unknown=0, NotChecked=0, Total=36672 [2021-11-13 19:08:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:08:20,726 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:08:20,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 6.338541666666667) internal successors, (1217), 192 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:08:20,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:08:20,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:08:20,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:08:20,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:08:20,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:09:08,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:09:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:09:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-11-13 19:09:47,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-13 19:09:48,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-13 19:09:48,175 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:09:48,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:09:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash -30587248, now seen corresponding path program 2 times [2021-11-13 19:09:48,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:09:48,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035685088] [2021-11-13 19:09:48,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:09:48,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:09:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:09:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 28595 backedges. 13604 proven. 783 refuted. 0 times theorem prover too weak. 14208 trivial. 0 not checked. [2021-11-13 19:09:50,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:09:50,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035685088] [2021-11-13 19:09:50,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035685088] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:09:50,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398862122] [2021-11-13 19:09:50,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 19:09:50,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:09:50,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:09:50,456 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:09:50,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-13 19:09:55,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 19:09:55,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:09:55,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 3932 conjuncts, 207 conjunts are in the unsatisfiable core [2021-11-13 19:09:55,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:10:01,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:10:01,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:10:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28595 backedges. 13911 proven. 5184 refuted. 0 times theorem prover too weak. 9500 trivial. 0 not checked. [2021-11-13 19:10:03,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:10:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 28595 backedges. 13911 proven. 1266 refuted. 0 times theorem prover too weak. 13418 trivial. 0 not checked. [2021-11-13 19:10:08,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398862122] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:10:08,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:10:08,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 101, 14] total 122 [2021-11-13 19:10:08,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232640795] [2021-11-13 19:10:08,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:10:08,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2021-11-13 19:10:08,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:10:08,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2021-11-13 19:10:08,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=653, Invalid=14109, Unknown=0, NotChecked=0, Total=14762 [2021-11-13 19:10:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:08,462 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:10:08,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 6.147540983606557) internal successors, (750), 122 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:10:08,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:08,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:10:08,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:10:08,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:10:08,464 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2021-11-13 19:10:08,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:10:32,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:10:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:10:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:10:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:10:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2021-11-13 19:10:32,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:10:32,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-13 19:10:32,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-13 19:10:32,934 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:10:32,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:10:32,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2016000562, now seen corresponding path program 2 times [2021-11-13 19:10:32,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:10:32,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841066436] [2021-11-13 19:10:32,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:10:32,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:10:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:10:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 11269 backedges. 4682 proven. 1257 refuted. 0 times theorem prover too weak. 5330 trivial. 0 not checked. [2021-11-13 19:10:34,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:10:34,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841066436] [2021-11-13 19:10:34,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841066436] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:10:34,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594109756] [2021-11-13 19:10:34,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 19:10:34,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:10:34,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:10:34,108 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:10:34,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-13 19:10:34,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 19:10:34,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:10:35,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 245 conjunts are in the unsatisfiable core [2021-11-13 19:10:35,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 19:10:43,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-13 19:10:43,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-13 19:10:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 11269 backedges. 3528 proven. 7326 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2021-11-13 19:10:43,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 19:10:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11269 backedges. 3528 proven. 2639 refuted. 0 times theorem prover too weak. 5102 trivial. 0 not checked. [2021-11-13 19:10:49,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594109756] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 19:10:49,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 19:10:49,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 120, 16] total 145 [2021-11-13 19:10:49,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816992281] [2021-11-13 19:10:49,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 19:10:49,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2021-11-13 19:10:49,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:10:49,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2021-11-13 19:10:49,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=20047, Unknown=0, NotChecked=0, Total=20880 [2021-11-13 19:10:49,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:49,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:10:49,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 6.165517241379311) internal successors, (894), 145 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:10:49,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:10:49,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:10:49,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 158 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:10:49,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:11:07,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-11-13 19:11:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2021-11-13 19:11:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:11:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2021-11-13 19:11:07,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-13 19:11:07,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:11:07,255 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:11:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:11:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash -473664155, now seen corresponding path program 3 times [2021-11-13 19:11:07,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:11:07,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721460774] [2021-11-13 19:11:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:11:07,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:11:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:11:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 21851 backedges. 7068 proven. 0 refuted. 0 times theorem prover too weak. 14783 trivial. 0 not checked. [2021-11-13 19:11:07,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:11:07,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721460774] [2021-11-13 19:11:07,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721460774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 19:11:07,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 19:11:07,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 19:11:07,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637335390] [2021-11-13 19:11:07,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 19:11:07,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 19:11:07,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 19:11:07,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 19:11:07,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 19:11:07,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:07,985 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-13 19:11:07,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 159 states. [2021-11-13 19:11:07,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:11:07,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 180 states. [2021-11-13 19:11:07,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 19:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 19:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-13 19:11:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-11-13 19:11:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2021-11-13 19:11:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 19:11:08,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-13 19:11:08,130 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-11-13 19:11:08,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 19:11:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash 937822329, now seen corresponding path program 4 times [2021-11-13 19:11:08,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 19:11:08,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018745846] [2021-11-13 19:11:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 19:11:08,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 19:11:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 19:11:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 21851 backedges. 10180 proven. 1325 refuted. 0 times theorem prover too weak. 10346 trivial. 0 not checked. [2021-11-13 19:11:09,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 19:11:09,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018745846] [2021-11-13 19:11:09,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018745846] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 19:11:09,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163242068] [2021-11-13 19:11:09,894 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-13 19:11:09,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 19:11:09,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 [2021-11-13 19:11:09,895 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 19:11:09,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dff6c63-aa12-4738-b2a6-f53d12626444/bin/ugemcutter-4ibYxwfQ6a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-13 19:11:22,922 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-13 19:11:22,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 19:11:22,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 3354 conjuncts, 403 conjunts are in the unsatisfiable core [2021-11-13 19:11:22,993 INFO L286 TraceCheckSpWp]: Computing forward predicates...