./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:04:58,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:04:58,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:04:58,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:04:58,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:04:58,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:04:58,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:04:58,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:04:58,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:04:58,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:04:58,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:04:58,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:04:58,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:04:58,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:04:58,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:04:58,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:04:58,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:04:58,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:04:58,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:04:58,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:04:58,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:04:58,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:04:58,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:04:58,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:04:58,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:04:58,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:04:58,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:04:58,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:04:58,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:04:58,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:04:58,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:04:58,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:04:58,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:04:58,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:04:58,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:04:58,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:04:58,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:04:58,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:04:58,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:04:58,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:04:58,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:04:58,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:04:58,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:04:58,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:04:58,928 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:04:58,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:04:58,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:04:58,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:04:58,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:04:58,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:04:58,941 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:04:58,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:04:58,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:04:58,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:04:58,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:04:58,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:04:58,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:04:58,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:04:58,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:04:58,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:04:58,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:04:58,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:04:58,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:04:58,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:04:58,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:04:58,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:04:58,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:04:58,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:04:58,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:04:58,947 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:04:58,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:04:58,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:04:58,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:04:58,950 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_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2021-11-13 18:04:59,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:04:59,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:04:59,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:04:59,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:04:59,292 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:04:59,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-13 18:04:59,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/data/bc8a0d4f4/596a0148125349b2b4a9e1bbd7266e1d/FLAG6fe21a08a [2021-11-13 18:05:00,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:05:00,342 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-13 18:05:00,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/data/bc8a0d4f4/596a0148125349b2b4a9e1bbd7266e1d/FLAG6fe21a08a [2021-11-13 18:05:00,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/data/bc8a0d4f4/596a0148125349b2b4a9e1bbd7266e1d [2021-11-13 18:05:00,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:05:00,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:05:00,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:05:00,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:05:00,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:05:00,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:05:00" (1/1) ... [2021-11-13 18:05:00,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1104a515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:00, skipping insertion in model container [2021-11-13 18:05:00,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:05:00" (1/1) ... [2021-11-13 18:05:00,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:05:00,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:05:03,433 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_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-13 18:05:03,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:05:03,587 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:05:04,102 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_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-13 18:05:04,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:05:04,391 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:05:04,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04 WrapperNode [2021-11-13 18:05:04,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:05:04,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:05:04,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:05:04,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:05:04,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:04,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:04,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:05:04,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:05:04,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:05:04,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:05:04,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:04,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:04,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:04,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:05,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:05,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:05,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:05,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:05:05,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:05:05,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:05:05,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:05:05,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (1/1) ... [2021-11-13 18:05:05,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:05:05,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:05:05,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:05:05,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:05:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-11-13 18:05:05,360 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-11-13 18:05:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-13 18:05:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-13 18:05:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-11-13 18:05:05,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-11-13 18:05:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:05:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:05:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:05:05,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:05:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:05:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:05:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 18:05:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 18:05:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:05:05,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:05:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 18:05:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 18:05:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-13 18:05:05,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-13 18:05:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:05:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:05:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-11-13 18:05:05,365 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-11-13 18:05:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:05:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:05:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:05:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:05:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 18:05:05,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 18:05:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:05:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:05:05,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 18:05:05,367 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 18:05:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-11-13 18:05:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-11-13 18:05:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-13 18:05:05,368 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-13 18:05:05,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:05:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:05:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 18:05:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 18:05:05,369 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:05:05,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:05:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 18:05:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 18:05:05,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:05:05,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:05:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-11-13 18:05:05,371 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-11-13 18:05:05,371 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:05:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:05:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-13 18:05:05,372 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-13 18:05:05,372 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:05:05,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:05:05,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:05:05,374 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:05:05,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:05:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-13 18:05:05,376 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-13 18:05:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:05:05,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:05:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:05:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:05:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:05:05,377 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:05:05,377 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:05:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 18:05:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 18:05:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:05:05,379 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:05:05,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-13 18:05:05,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-13 18:05:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-11-13 18:05:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-11-13 18:05:05,381 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-11-13 18:05:05,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-11-13 18:05:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:05:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:05:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-11-13 18:05:05,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-11-13 18:05:05,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-11-13 18:05:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-11-13 18:05:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:05:05,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:05:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:05:05,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:05:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-13 18:05:05,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-13 18:05:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-13 18:05:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-13 18:05:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:05:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:05:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-11-13 18:05:05,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-11-13 18:05:05,386 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:05:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:05:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-11-13 18:05:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-11-13 18:05:05,388 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-13 18:05:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-13 18:05:05,389 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:05:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:05:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-13 18:05:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-13 18:05:05,390 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-11-13 18:05:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-11-13 18:05:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:05:05,391 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-11-13 18:05:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-11-13 18:05:05,393 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-13 18:05:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-13 18:05:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:05:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:05:05,394 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:05:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:05:05,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-13 18:05:05,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-13 18:05:05,396 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 18:05:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 18:05:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:05:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:05:05,400 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:05:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:05:05,402 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-11-13 18:05:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-11-13 18:05:05,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:05:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:05:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:05:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-13 18:05:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-13 18:05:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-13 18:05:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-13 18:05:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-11-13 18:05:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-11-13 18:05:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:05:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:05:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-11-13 18:05:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-11-13 18:05:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 18:05:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 18:05:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-11-13 18:05:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-11-13 18:05:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:05:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-13 18:05:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-13 18:05:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-13 18:05:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-13 18:05:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-13 18:05:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-13 18:05:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-11-13 18:05:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-11-13 18:05:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:05:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-13 18:05:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-13 18:05:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-13 18:05:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-13 18:05:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-13 18:05:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-13 18:05:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-13 18:05:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-13 18:05:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-11-13 18:05:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-11-13 18:05:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-11-13 18:05:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-11-13 18:05:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 18:05:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 18:05:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-11-13 18:05:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-11-13 18:05:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 18:05:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 18:05:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:05:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-13 18:05:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-13 18:05:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:05:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:05:06,854 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:05:13,132 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:05:13,132 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:05:13,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:05:13 BoogieIcfgContainer [2021-11-13 18:05:13,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:05:13,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:05:13,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:05:13,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:05:13,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:05:00" (1/3) ... [2021-11-13 18:05:13,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab9212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:05:13, skipping insertion in model container [2021-11-13 18:05:13,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:05:04" (2/3) ... [2021-11-13 18:05:13,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dab9212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:05:13, skipping insertion in model container [2021-11-13 18:05:13,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:05:13" (3/3) ... [2021-11-13 18:05:13,149 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-13 18:05:13,156 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:05:13,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:05:13,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:05:13,273 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:05:13,273 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:05:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2021-11-13 18:05:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-13 18:05:13,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:05:13,416 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:13,417 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:05:13,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:13,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1411471056, now seen corresponding path program 1 times [2021-11-13 18:05:13,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:13,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95379703] [2021-11-13 18:05:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:13,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:05:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:05:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:05:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:05:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:05:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:05:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:05:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:05:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:05:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:05:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:05:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:05:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:05:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 18:05:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:05:15,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:15,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95379703] [2021-11-13 18:05:15,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95379703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:15,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:15,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:05:15,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348446677] [2021-11-13 18:05:15,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:15,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:05:15,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:05:15,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:05:15,153 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:05:16,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:18,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:20,162 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:28,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:28,708 INFO L93 Difference]: Finished difference Result 3618 states and 5281 transitions. [2021-11-13 18:05:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:05:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2021-11-13 18:05:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:05:28,756 INFO L225 Difference]: With dead ends: 3618 [2021-11-13 18:05:28,756 INFO L226 Difference]: Without dead ends: 1897 [2021-11-13 18:05:28,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:05:28,781 INFO L933 BasicCegarLoop]: 2144 mSDtfsCounter, 1895 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 1889 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11588.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 5450 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.37ms SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12933.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:05:28,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1963 Valid, 5450 Invalid, 4393 Unknown, 0 Unchecked, 105.37ms Time], IncrementalHoareTripleChecker [1889 Valid, 2503 Invalid, 1 Unknown, 0 Unchecked, 12933.73ms Time] [2021-11-13 18:05:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2021-11-13 18:05:28,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1686. [2021-11-13 18:05:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1165 states have (on average 1.3167381974248926) internal successors, (1534), 1180 states have internal predecessors, (1534), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2021-11-13 18:05:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2411 transitions. [2021-11-13 18:05:29,023 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2411 transitions. Word has length 178 [2021-11-13 18:05:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:05:29,024 INFO L470 AbstractCegarLoop]: Abstraction has 1686 states and 2411 transitions. [2021-11-13 18:05:29,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-13 18:05:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2411 transitions. [2021-11-13 18:05:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-13 18:05:29,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:05:29,036 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:29,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:05:29,037 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:05:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:29,038 INFO L85 PathProgramCache]: Analyzing trace with hash 419462204, now seen corresponding path program 1 times [2021-11-13 18:05:29,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:29,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987574624] [2021-11-13 18:05:29,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:29,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:05:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:05:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:05:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:05:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:05:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:05:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:05:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:05:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:05:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:05:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:05:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-13 18:05:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:05:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 18:05:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:05:29,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:29,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987574624] [2021-11-13 18:05:29,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987574624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:29,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:29,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:05:29,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535887225] [2021-11-13 18:05:29,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:29,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:05:29,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:05:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:05:29,984 INFO L87 Difference]: Start difference. First operand 1686 states and 2411 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:05:31,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:33,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:05:45,924 INFO L93 Difference]: Finished difference Result 5427 states and 7844 transitions. [2021-11-13 18:05:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:05:45,925 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 178 [2021-11-13 18:05:45,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:05:45,965 INFO L225 Difference]: With dead ends: 5427 [2021-11-13 18:05:45,966 INFO L226 Difference]: Without dead ends: 3769 [2021-11-13 18:05:45,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:05:45,978 INFO L933 BasicCegarLoop]: 2371 mSDtfsCounter, 6809 mSDsluCounter, 7099 mSDsCounter, 0 mSdLazyCounter, 5228 mSolverCounterSat, 5502 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13036.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7128 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 10731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 143.22ms SdHoareTripleChecker+Time, 5502 IncrementalHoareTripleChecker+Valid, 5228 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14938.67ms IncrementalHoareTripleChecker+Time [2021-11-13 18:05:45,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7128 Valid, 9470 Invalid, 10731 Unknown, 0 Unchecked, 143.22ms Time], IncrementalHoareTripleChecker [5502 Valid, 5228 Invalid, 1 Unknown, 0 Unchecked, 14938.67ms Time] [2021-11-13 18:05:45,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2021-11-13 18:05:46,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3338. [2021-11-13 18:05:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 2308 states have (on average 1.317157712305026) internal successors, (3040), 2342 states have internal predecessors, (3040), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2021-11-13 18:05:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4773 transitions. [2021-11-13 18:05:46,231 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4773 transitions. Word has length 178 [2021-11-13 18:05:46,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:05:46,233 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4773 transitions. [2021-11-13 18:05:46,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:05:46,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4773 transitions. [2021-11-13 18:05:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-13 18:05:46,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:05:46,250 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:05:46,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:05:46,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:05:46,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:05:46,251 INFO L85 PathProgramCache]: Analyzing trace with hash 773468645, now seen corresponding path program 1 times [2021-11-13 18:05:46,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:05:46,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700166056] [2021-11-13 18:05:46,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:05:46,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:05:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:05:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:05:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:05:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:05:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:05:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:05:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:05:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:05:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:05:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:05:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:05:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:05:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:05:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-13 18:05:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:05:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:05:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:05:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:05:46,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:05:46,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700166056] [2021-11-13 18:05:46,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700166056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:05:46,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:05:46,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:05:46,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394856858] [2021-11-13 18:05:46,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:05:46,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:05:46,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:05:46,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:05:46,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:05:46,984 INFO L87 Difference]: Start difference. First operand 3338 states and 4773 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:05:49,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:50,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:52,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:05:54,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:07,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:06:07,862 INFO L93 Difference]: Finished difference Result 10810 states and 15611 transitions. [2021-11-13 18:06:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:06:07,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 179 [2021-11-13 18:06:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:06:07,935 INFO L225 Difference]: With dead ends: 10810 [2021-11-13 18:06:07,935 INFO L226 Difference]: Without dead ends: 7500 [2021-11-13 18:06:07,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:06:07,962 INFO L933 BasicCegarLoop]: 2380 mSDtfsCounter, 5593 mSDsluCounter, 8598 mSDsCounter, 0 mSdLazyCounter, 6978 mSolverCounterSat, 4206 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17713.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5912 SdHoareTripleChecker+Valid, 10978 SdHoareTripleChecker+Invalid, 11186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.07ms SdHoareTripleChecker+Time, 4206 IncrementalHoareTripleChecker+Valid, 6978 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19890.59ms IncrementalHoareTripleChecker+Time [2021-11-13 18:06:07,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5912 Valid, 10978 Invalid, 11186 Unknown, 0 Unchecked, 123.07ms Time], IncrementalHoareTripleChecker [4206 Valid, 6978 Invalid, 2 Unknown, 0 Unchecked, 19890.59ms Time] [2021-11-13 18:06:07,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2021-11-13 18:06:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 6647. [2021-11-13 18:06:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 4600 states have (on average 1.3169565217391304) internal successors, (6058), 4667 states have internal predecessors, (6058), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2021-11-13 18:06:08,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9501 transitions. [2021-11-13 18:06:08,521 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9501 transitions. Word has length 179 [2021-11-13 18:06:08,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:06:08,522 INFO L470 AbstractCegarLoop]: Abstraction has 6647 states and 9501 transitions. [2021-11-13 18:06:08,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:06:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9501 transitions. [2021-11-13 18:06:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 18:06:08,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:06:08,535 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:06:08,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:06:08,536 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:06:08,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:06:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2055801823, now seen corresponding path program 1 times [2021-11-13 18:06:08,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:06:08,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601474277] [2021-11-13 18:06:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:06:08,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:06:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:06:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:06:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:06:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:06:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:08,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:06:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:06:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:06:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:06:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:06:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:06:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:06:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 18:06:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 18:06:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:06:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:09,202 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:06:09,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:06:09,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601474277] [2021-11-13 18:06:09,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601474277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:06:09,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:06:09,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:06:09,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007367731] [2021-11-13 18:06:09,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:06:09,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:06:09,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:06:09,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:06:09,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:06:09,205 INFO L87 Difference]: Start difference. First operand 6647 states and 9501 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:06:10,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:12,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:06:22,531 INFO L93 Difference]: Finished difference Result 21588 states and 31145 transitions. [2021-11-13 18:06:22,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:06:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-11-13 18:06:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:06:22,669 INFO L225 Difference]: With dead ends: 21588 [2021-11-13 18:06:22,669 INFO L226 Difference]: Without dead ends: 14969 [2021-11-13 18:06:22,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:06:22,717 INFO L933 BasicCegarLoop]: 2356 mSDtfsCounter, 6961 mSDsluCounter, 6987 mSDsCounter, 0 mSdLazyCounter, 5207 mSolverCounterSat, 5518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10632.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7280 SdHoareTripleChecker+Valid, 9343 SdHoareTripleChecker+Invalid, 10725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.79ms SdHoareTripleChecker+Time, 5518 IncrementalHoareTripleChecker+Valid, 5207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12246.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:06:22,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7280 Valid, 9343 Invalid, 10725 Unknown, 0 Unchecked, 87.79ms Time], IncrementalHoareTripleChecker [5518 Valid, 5207 Invalid, 0 Unknown, 0 Unchecked, 12246.19ms Time] [2021-11-13 18:06:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14969 states. [2021-11-13 18:06:23,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14969 to 13270. [2021-11-13 18:06:23,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 9189 states have (on average 1.3165741647622158) internal successors, (12098), 9321 states have internal predecessors, (12098), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2021-11-13 18:06:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 18959 transitions. [2021-11-13 18:06:23,790 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 18959 transitions. Word has length 180 [2021-11-13 18:06:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:06:23,792 INFO L470 AbstractCegarLoop]: Abstraction has 13270 states and 18959 transitions. [2021-11-13 18:06:23,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:06:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 18959 transitions. [2021-11-13 18:06:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-13 18:06:23,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:06:23,808 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:06:23,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:06:23,809 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:06:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:06:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash -162949078, now seen corresponding path program 1 times [2021-11-13 18:06:23,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:06:23,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700232101] [2021-11-13 18:06:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:06:23,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:06:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:06:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:06:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:06:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:06:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:06:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:06:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:06:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:06:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:06:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:06:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-13 18:06:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:06:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:06:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-13 18:06:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-13 18:06:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:24,301 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-13 18:06:24,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:06:24,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700232101] [2021-11-13 18:06:24,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700232101] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:06:24,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:06:24,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:06:24,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691339636] [2021-11-13 18:06:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:06:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:06:24,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:06:24,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:06:24,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:06:24,305 INFO L87 Difference]: Start difference. First operand 13270 states and 18959 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:06:26,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:27,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:29,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:38,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:06:38,893 INFO L93 Difference]: Finished difference Result 39963 states and 57434 transitions. [2021-11-13 18:06:38,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 18:06:38,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-11-13 18:06:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:06:39,086 INFO L225 Difference]: With dead ends: 39963 [2021-11-13 18:06:39,087 INFO L226 Difference]: Without dead ends: 26721 [2021-11-13 18:06:39,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-13 18:06:39,192 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 5142 mSDsluCounter, 3969 mSDsCounter, 0 mSdLazyCounter, 3636 mSolverCounterSat, 3889 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11982.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5378 SdHoareTripleChecker+Valid, 6241 SdHoareTripleChecker+Invalid, 7526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 66.83ms SdHoareTripleChecker+Time, 3889 IncrementalHoareTripleChecker+Valid, 3636 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13369.83ms IncrementalHoareTripleChecker+Time [2021-11-13 18:06:39,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5378 Valid, 6241 Invalid, 7526 Unknown, 0 Unchecked, 66.83ms Time], IncrementalHoareTripleChecker [3889 Valid, 3636 Invalid, 1 Unknown, 0 Unchecked, 13369.83ms Time] [2021-11-13 18:06:39,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26721 states. [2021-11-13 18:06:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26721 to 23658. [2021-11-13 18:06:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23658 states, 16421 states have (on average 1.313561902441995) internal successors, (21570), 16693 states have internal predecessors, (21570), 6019 states have call successors, (6019), 1226 states have call predecessors, (6019), 1217 states have return successors, (6018), 5898 states have call predecessors, (6018), 6018 states have call successors, (6018) [2021-11-13 18:06:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23658 states to 23658 states and 33607 transitions. [2021-11-13 18:06:41,085 INFO L78 Accepts]: Start accepts. Automaton has 23658 states and 33607 transitions. Word has length 192 [2021-11-13 18:06:41,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:06:41,086 INFO L470 AbstractCegarLoop]: Abstraction has 23658 states and 33607 transitions. [2021-11-13 18:06:41,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:06:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 23658 states and 33607 transitions. [2021-11-13 18:06:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-13 18:06:41,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:06:41,094 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:06:41,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:06:41,095 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:06:41,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:06:41,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2051492776, now seen corresponding path program 1 times [2021-11-13 18:06:41,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:06:41,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946932320] [2021-11-13 18:06:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:06:41,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:06:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:06:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:06:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:06:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:06:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:06:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:06:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:06:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:06:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:06:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:06:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:06:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:06:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 18:06:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:06:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 18:06:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-13 18:06:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:06:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:06:41,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:06:41,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946932320] [2021-11-13 18:06:41,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946932320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:06:41,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:06:41,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 18:06:41,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687715841] [2021-11-13 18:06:41,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:06:41,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 18:06:41,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:06:41,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 18:06:41,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:06:41,716 INFO L87 Difference]: Start difference. First operand 23658 states and 33607 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:06:43,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:45,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:06:47,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:07:01,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:01,052 INFO L93 Difference]: Finished difference Result 76792 states and 110135 transitions. [2021-11-13 18:07:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 18:07:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2021-11-13 18:07:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:01,468 INFO L225 Difference]: With dead ends: 76792 [2021-11-13 18:07:01,468 INFO L226 Difference]: Without dead ends: 53162 [2021-11-13 18:07:01,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-13 18:07:01,639 INFO L933 BasicCegarLoop]: 2359 mSDtfsCounter, 5596 mSDsluCounter, 8538 mSDsCounter, 0 mSdLazyCounter, 7018 mSolverCounterSat, 4243 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15266.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 10897 SdHoareTripleChecker+Invalid, 11263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.83ms SdHoareTripleChecker+Time, 4243 IncrementalHoareTripleChecker+Valid, 7018 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17197.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:01,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5913 Valid, 10897 Invalid, 11263 Unknown, 0 Unchecked, 105.83ms Time], IncrementalHoareTripleChecker [4243 Valid, 7018 Invalid, 2 Unknown, 0 Unchecked, 17197.99ms Time] [2021-11-13 18:07:01,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53162 states. [2021-11-13 18:07:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53162 to 47147. [2021-11-13 18:07:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47147 states, 32724 states have (on average 1.312981298129813) internal successors, (42966), 33258 states have internal predecessors, (42966), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2021-11-13 18:07:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47147 states to 47147 states and 66939 transitions. [2021-11-13 18:07:05,870 INFO L78 Accepts]: Start accepts. Automaton has 47147 states and 66939 transitions. Word has length 181 [2021-11-13 18:07:05,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:05,878 INFO L470 AbstractCegarLoop]: Abstraction has 47147 states and 66939 transitions. [2021-11-13 18:07:05,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-13 18:07:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 47147 states and 66939 transitions. [2021-11-13 18:07:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-13 18:07:05,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:05,887 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:05,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:07:05,888 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:07:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:05,889 INFO L85 PathProgramCache]: Analyzing trace with hash 700303173, now seen corresponding path program 1 times [2021-11-13 18:07:05,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:05,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289581358] [2021-11-13 18:07:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:05,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:07:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:07:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:07:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:07:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:07:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:07:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:07:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:07:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:07:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:07:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-13 18:07:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:07:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-13 18:07:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:07:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:07:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-13 18:07:06,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:06,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289581358] [2021-11-13 18:07:06,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289581358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:07:06,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195768310] [2021-11-13 18:07:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:06,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:06,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:06,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:06,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:07:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:08,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2479 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:07:08,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:08,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:08,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195768310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:08,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:07:08,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-13 18:07:08,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914786373] [2021-11-13 18:07:08,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:08,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:07:08,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:07:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-13 18:07:08,830 INFO L87 Difference]: Start difference. First operand 47147 states and 66939 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:12,139 INFO L93 Difference]: Finished difference Result 118105 states and 167645 transitions. [2021-11-13 18:07:12,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:07:12,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 191 [2021-11-13 18:07:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:12,762 INFO L225 Difference]: With dead ends: 118105 [2021-11-13 18:07:12,762 INFO L226 Difference]: Without dead ends: 70986 [2021-11-13 18:07:12,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-13 18:07:12,966 INFO L933 BasicCegarLoop]: 3077 mSDtfsCounter, 2429 mSDsluCounter, 14676 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 17753 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.49ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 200.11ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:12,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 17753 Invalid, 76 Unknown, 0 Unchecked, 43.49ms Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 200.11ms Time] [2021-11-13 18:07:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70986 states. [2021-11-13 18:07:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70986 to 70691. [2021-11-13 18:07:16,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70691 states, 49082 states have (on average 1.313414286296402) internal successors, (64465), 49902 states have internal predecessors, (64465), 17947 states have call successors, (17947), 3670 states have call predecessors, (17947), 3661 states have return successors, (17986), 17594 states have call predecessors, (17986), 17946 states have call successors, (17986) [2021-11-13 18:07:17,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70691 states to 70691 states and 100398 transitions. [2021-11-13 18:07:17,883 INFO L78 Accepts]: Start accepts. Automaton has 70691 states and 100398 transitions. Word has length 191 [2021-11-13 18:07:17,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:17,891 INFO L470 AbstractCegarLoop]: Abstraction has 70691 states and 100398 transitions. [2021-11-13 18:07:17,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:17,891 INFO L276 IsEmpty]: Start isEmpty. Operand 70691 states and 100398 transitions. [2021-11-13 18:07:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-13 18:07:17,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:17,903 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:17,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:18,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:18,116 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:07:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash -519166975, now seen corresponding path program 1 times [2021-11-13 18:07:18,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:18,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647871573] [2021-11-13 18:07:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:18,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:07:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:07:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:07:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:07:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:07:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:07:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:07:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:07:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:07:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:07:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-13 18:07:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:07:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-13 18:07:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-13 18:07:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-13 18:07:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:18,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:18,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647871573] [2021-11-13 18:07:18,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647871573] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:07:18,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833550910] [2021-11-13 18:07:18,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:18,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:18,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:18,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:18,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 18:07:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:19,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:07:19,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:20,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:20,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833550910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:20,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:07:20,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-13 18:07:20,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052357977] [2021-11-13 18:07:20,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:20,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:07:20,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:20,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:07:20,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:07:20,486 INFO L87 Difference]: Start difference. First operand 70691 states and 100398 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:24,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:24,384 INFO L93 Difference]: Finished difference Result 165299 states and 234655 transitions. [2021-11-13 18:07:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:07:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-11-13 18:07:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:25,252 INFO L225 Difference]: With dead ends: 165299 [2021-11-13 18:07:25,252 INFO L226 Difference]: Without dead ends: 94636 [2021-11-13 18:07:25,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-13 18:07:25,564 INFO L933 BasicCegarLoop]: 3130 mSDtfsCounter, 2429 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 18006 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.57ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 126.06ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:25,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 18006 Invalid, 77 Unknown, 0 Unchecked, 27.57ms Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 126.06ms Time] [2021-11-13 18:07:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94636 states. [2021-11-13 18:07:29,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94636 to 94299. [2021-11-13 18:07:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94299 states, 65480 states have (on average 1.313439218081857) internal successors, (86004), 66618 states have internal predecessors, (86004), 23907 states have call successors, (23907), 4888 states have call predecessors, (23907), 4911 states have return successors, (24010), 23426 states have call predecessors, (24010), 23906 states have call successors, (24010) [2021-11-13 18:07:30,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94299 states to 94299 states and 133921 transitions. [2021-11-13 18:07:30,689 INFO L78 Accepts]: Start accepts. Automaton has 94299 states and 133921 transitions. Word has length 192 [2021-11-13 18:07:30,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:30,690 INFO L470 AbstractCegarLoop]: Abstraction has 94299 states and 133921 transitions. [2021-11-13 18:07:30,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:30,690 INFO L276 IsEmpty]: Start isEmpty. Operand 94299 states and 133921 transitions. [2021-11-13 18:07:30,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 18:07:30,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:30,703 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:30,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-13 18:07:30,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:30,920 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:07:30,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1521526796, now seen corresponding path program 1 times [2021-11-13 18:07:30,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:30,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261828717] [2021-11-13 18:07:30,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:30,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:07:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:07:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:07:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:07:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:07:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:07:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:07:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:07:31,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:07:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:07:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-13 18:07:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-13 18:07:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 18:07:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-13 18:07:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-13 18:07:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:31,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:31,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261828717] [2021-11-13 18:07:31,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261828717] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:07:31,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248402902] [2021-11-13 18:07:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:31,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:31,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:31,601 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:31,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 18:07:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:32,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:07:32,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:33,134 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:33,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:33,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248402902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:33,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:07:33,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-13 18:07:33,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083464812] [2021-11-13 18:07:33,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:33,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:07:33,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:33,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:07:33,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:07:33,138 INFO L87 Difference]: Start difference. First operand 94299 states and 133921 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:38,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:38,429 INFO L93 Difference]: Finished difference Result 212493 states and 301665 transitions. [2021-11-13 18:07:38,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:07:38,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 193 [2021-11-13 18:07:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:39,122 INFO L225 Difference]: With dead ends: 212493 [2021-11-13 18:07:39,122 INFO L226 Difference]: Without dead ends: 118222 [2021-11-13 18:07:39,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-13 18:07:39,931 INFO L933 BasicCegarLoop]: 3130 mSDtfsCounter, 2429 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 18006 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 360.68ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.86ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:39,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 18006 Invalid, 77 Unknown, 0 Unchecked, 360.68ms Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 140.86ms Time] [2021-11-13 18:07:40,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118222 states. [2021-11-13 18:07:44,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118222 to 94343. [2021-11-13 18:07:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94343 states, 65512 states have (on average 1.3132861155208206) internal successors, (86036), 66654 states have internal predecessors, (86036), 23907 states have call successors, (23907), 4888 states have call predecessors, (23907), 4923 states have return successors, (24028), 23434 states have call predecessors, (24028), 23906 states have call successors, (24028) [2021-11-13 18:07:45,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94343 states to 94343 states and 133971 transitions. [2021-11-13 18:07:45,390 INFO L78 Accepts]: Start accepts. Automaton has 94343 states and 133971 transitions. Word has length 193 [2021-11-13 18:07:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:07:45,390 INFO L470 AbstractCegarLoop]: Abstraction has 94343 states and 133971 transitions. [2021-11-13 18:07:45,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:45,391 INFO L276 IsEmpty]: Start isEmpty. Operand 94343 states and 133971 transitions. [2021-11-13 18:07:45,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-13 18:07:45,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:07:45,403 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:07:45,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:07:45,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:45,620 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:07:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:07:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1548086952, now seen corresponding path program 1 times [2021-11-13 18:07:45,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:07:45,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161469210] [2021-11-13 18:07:45,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:45,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:07:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:07:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-13 18:07:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:07:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:07:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-13 18:07:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:07:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:07:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:07:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:07:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:07:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-13 18:07:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-13 18:07:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-13 18:07:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-13 18:07:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:07:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:07:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-13 18:07:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:46,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:07:46,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161469210] [2021-11-13 18:07:46,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161469210] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:07:46,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53680835] [2021-11-13 18:07:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:07:46,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:07:46,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:07:46,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:07:46,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf17afba-c0f8-42c7-96b4-4c2a36b049dd/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 18:07:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:07:47,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:07:47,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:07:48,091 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-13 18:07:48,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 18:07:48,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53680835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:07:48,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 18:07:48,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-13 18:07:48,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553774525] [2021-11-13 18:07:48,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:07:48,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:07:48,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:07:48,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:07:48,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-13 18:07:48,094 INFO L87 Difference]: Start difference. First operand 94343 states and 133971 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-13 18:07:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:07:52,635 INFO L93 Difference]: Finished difference Result 212553 states and 301731 transitions. [2021-11-13 18:07:52,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 18:07:52,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 194 [2021-11-13 18:07:52,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:07:53,241 INFO L225 Difference]: With dead ends: 212553 [2021-11-13 18:07:53,241 INFO L226 Difference]: Without dead ends: 118238 [2021-11-13 18:07:53,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-13 18:07:53,574 INFO L933 BasicCegarLoop]: 3130 mSDtfsCounter, 2429 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 18006 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.35ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.83ms IncrementalHoareTripleChecker+Time [2021-11-13 18:07:53,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 18006 Invalid, 77 Unknown, 0 Unchecked, 23.35ms Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 113.83ms Time] [2021-11-13 18:07:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118238 states.