./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--thunderbolt--thunderbolt.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_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/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_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/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_42bce390-c297-4b1d-8924-dedeabde9d6b/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 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:17:41,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:17:41,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:17:42,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:17:42,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:17:42,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:17:42,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:17:42,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:17:42,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:17:42,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:17:42,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:17:42,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:17:42,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:17:42,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:17:42,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:17:42,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:17:42,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:17:42,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:17:42,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:17:42,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:17:42,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:17:42,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:17:42,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:17:42,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:17:42,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:17:42,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:17:42,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:17:42,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:17:42,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:17:42,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:17:42,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:17:42,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:17:42,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:17:42,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:17:42,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:17:42,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:17:42,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:17:42,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:17:42,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:17:42,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:17:42,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:17:42,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:17:42,204 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:17:42,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:17:42,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:17:42,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:17:42,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:17:42,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:17:42,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:17:42,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:17:42,216 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:17:42,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:17:42,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:17:42,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:17:42,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:17:42,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:17:42,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:17:42,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:17:42,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:17:42,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:17:42,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:17:42,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:17:42,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:17:42,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:17:42,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:17:42,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:17:42,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:17:42,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:17:42,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:17:42,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:17:42,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:17:42,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:17:42,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:17:42,226 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_42bce390-c297-4b1d-8924-dedeabde9d6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a621364e853f6cea57e1b9be3d64dd0229cd7b56b8697c8ff667994a99ac7d5 [2021-11-13 18:17:42,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:17:42,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:17:42,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:17:42,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:17:42,520 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:17:42,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-13 18:17:42,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/data/d11dce2ed/780ddd38ec98456aa024738527024af1/FLAG2fd71852c [2021-11-13 18:17:43,581 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:17:43,582 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-13 18:17:43,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/data/d11dce2ed/780ddd38ec98456aa024738527024af1/FLAG2fd71852c [2021-11-13 18:17:43,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/data/d11dce2ed/780ddd38ec98456aa024738527024af1 [2021-11-13 18:17:43,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:17:44,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:17:44,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:17:44,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:17:44,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:17:44,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:17:43" (1/1) ... [2021-11-13 18:17:44,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37e7b09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:44, skipping insertion in model container [2021-11-13 18:17:44,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:17:43" (1/1) ... [2021-11-13 18:17:44,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:17:44,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:17:47,005 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_42bce390-c297-4b1d-8924-dedeabde9d6b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2021-11-13 18:17:47,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:17:47,096 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:17:47,841 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_42bce390-c297-4b1d-8924-dedeabde9d6b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i[297077,297090] [2021-11-13 18:17:47,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:17:48,000 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:17:48,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48 WrapperNode [2021-11-13 18:17:48,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:17:48,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:17:48,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:17:48,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:17:48,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:17:48,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:17:48,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:17:48,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:17:48,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:48,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:49,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:49,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:49,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:17:49,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:17:49,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:17:49,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:17:49,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (1/1) ... [2021-11-13 18:17:49,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:17:49,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:17:49,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:17:49,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bce390-c297-4b1d-8924-dedeabde9d6b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:17:49,238 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-13 18:17:49,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-13 18:17:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure ring_desc_base [2021-11-13 18:17:49,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_desc_base [2021-11-13 18:17:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure thunderbolt_shutdown_and_free [2021-11-13 18:17:49,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thunderbolt_shutdown_and_free [2021-11-13 18:17:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_shutdown [2021-11-13 18:17:49,240 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_shutdown [2021-11-13 18:17:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-13 18:17:49,240 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-13 18:17:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_port [2021-11-13 18:17:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_port [2021-11-13 18:17:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_active [2021-11-13 18:17:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_active [2021-11-13 18:17:49,241 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2021-11-13 18:17:49,241 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2021-11-13 18:17:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:17:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:17:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:17:49,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:17:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:17:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:17:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_read_n [2021-11-13 18:17:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_read_n [2021-11-13 18:17:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:17:49,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:17:49,244 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_tx [2021-11-13 18:17:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_tx [2021-11-13 18:17:49,244 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_read [2021-11-13 18:17:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_read [2021-11-13 18:17:49,244 INFO L130 BoogieDeclarations]: Found specification of procedure ring_work [2021-11-13 18:17:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_work [2021-11-13 18:17:49,245 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_get_drom_offset [2021-11-13 18:17:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_get_drom_offset [2021-11-13 18:17:49,245 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-11-13 18:17:49,245 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-11-13 18:17:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_free [2021-11-13 18:17:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_free [2021-11-13 18:17:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-13 18:17:49,246 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-13 18:17:49,246 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite16desc [2021-11-13 18:17:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite16desc [2021-11-13 18:17:49,247 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32options [2021-11-13 18:17:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32options [2021-11-13 18:17:49,247 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_free [2021-11-13 18:17:49,247 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_free [2021-11-13 18:17:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_active [2021-11-13 18:17:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_active [2021-11-13 18:17:49,248 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-11-13 18:17:49,248 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-11-13 18:17:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure tb_find_cap [2021-11-13 18:17:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_find_cap [2021-11-13 18:17:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 18:17:49,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 18:17:49,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 18:17:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 18:17:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_deactivate [2021-11-13 18:17:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_deactivate [2021-11-13 18:17:49,250 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_write [2021-11-13 18:17:49,250 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_write [2021-11-13 18:17:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx_submit [2021-11-13 18:17:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx_submit [2021-11-13 18:17:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_disable_interrupts [2021-11-13 18:17:49,251 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_disable_interrupts [2021-11-13 18:17:49,251 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-13 18:17:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-13 18:17:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure get_route [2021-11-13 18:17:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure get_route [2021-11-13 18:17:49,252 INFO L130 BoogieDeclarations]: Found specification of procedure check_header [2021-11-13 18:17:49,252 INFO L138 BoogieDeclarations]: Found implementation of procedure check_header [2021-11-13 18:17:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-13 18:17:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-13 18:17:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_pkg_alloc [2021-11-13 18:17:49,253 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_pkg_alloc [2021-11-13 18:17:49,253 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 18:17:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 18:17:49,254 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_suspend_noirq [2021-11-13 18:17:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_suspend_noirq [2021-11-13 18:17:49,254 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_ctl_read [2021-11-13 18:17:49,254 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_ctl_read [2021-11-13 18:17:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_port_active [2021-11-13 18:17:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_port_active [2021-11-13 18:17:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure tb_activate_pcie_devices [2021-11-13 18:17:49,255 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_activate_pcie_devices [2021-11-13 18:17:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_suspend [2021-11-13 18:17:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_suspend [2021-11-13 18:17:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_alloc [2021-11-13 18:17:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_alloc [2021-11-13 18:17:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure tb_drom_read_uid_only [2021-11-13 18:17:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_drom_read_uid_only [2021-11-13 18:17:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:17:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 18:17:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 18:17:49,257 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_write [2021-11-13 18:17:49,257 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_write [2021-11-13 18:17:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_activate [2021-11-13 18:17:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_activate [2021-11-13 18:17:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_interrupt_work [2021-11-13 18:17:49,258 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_interrupt_work [2021-11-13 18:17:49,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 18:17:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 18:17:49,259 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-13 18:17:49,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-13 18:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 18:17:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 18:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-11-13 18:17:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-11-13 18:17:49,260 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read_raw [2021-11-13 18:17:49,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read_raw [2021-11-13 18:17:49,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:17:49,261 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_long [2021-11-13 18:17:49,261 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_long [2021-11-13 18:17:49,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:17:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_set_unpplugged [2021-11-13 18:17:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_set_unpplugged [2021-11-13 18:17:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite32desc [2021-11-13 18:17:49,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite32desc [2021-11-13 18:17:49,262 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route_length [2021-11-13 18:17:49,263 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route_length [2021-11-13 18:17:49,263 INFO L130 BoogieDeclarations]: Found specification of procedure nhi_resume_noirq [2021-11-13 18:17:49,263 INFO L138 BoogieDeclarations]: Found implementation of procedure nhi_resume_noirq [2021-11-13 18:17:49,263 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-13 18:17:49,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-13 18:17:49,264 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-13 18:17:49,264 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-13 18:17:49,264 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-13 18:17:49,264 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-13 18:17:49,264 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-13 18:17:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-13 18:17:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc8 [2021-11-13 18:17:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc8 [2021-11-13 18:17:49,265 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_alloc [2021-11-13 18:17:49,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_alloc [2021-11-13 18:17:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-13 18:17:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-13 18:17:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure ring_free [2021-11-13 18:17:49,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_free [2021-11-13 18:17:49,266 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-11-13 18:17:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-11-13 18:17:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ring_write_descriptors [2021-11-13 18:17:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_write_descriptors [2021-11-13 18:17:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:17:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ring_iowrite64desc [2021-11-13 18:17:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_iowrite64desc [2021-11-13 18:17:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deallocate_nfc [2021-11-13 18:17:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deallocate_nfc [2021-11-13 18:17:49,268 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_unplugged_children [2021-11-13 18:17:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_unplugged_children [2021-11-13 18:17:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure tb_crc [2021-11-13 18:17:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_crc [2021-11-13 18:17:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-13 18:17:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-13 18:17:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:17:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure tb_plug_events_active [2021-11-13 18:17:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_plug_events_active [2021-11-13 18:17:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-11-13 18:17:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-11-13 18:17:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_stop [2021-11-13 18:17:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_stop [2021-11-13 18:17:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:17:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure tb_switch_resume [2021-11-13 18:17:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_switch_resume [2021-11-13 18:17:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_print_error [2021-11-13 18:17:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_print_error [2021-11-13 18:17:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure tb_wait_for_port [2021-11-13 18:17:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_wait_for_port [2021-11-13 18:17:49,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 18:17:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 18:17:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_add_nfc_credits [2021-11-13 18:17:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_add_nfc_credits [2021-11-13 18:17:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2021-11-13 18:17:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2021-11-13 18:17:49,273 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-11-13 18:17:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-11-13 18:17:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure tb_scan_switch [2021-11-13 18:17:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_scan_switch [2021-11-13 18:17:49,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:17:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:17:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_start [2021-11-13 18:17:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_start [2021-11-13 18:17:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_restart [2021-11-13 18:17:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_restart [2021-11-13 18:17:49,275 INFO L130 BoogieDeclarations]: Found specification of procedure ring_start [2021-11-13 18:17:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_start [2021-11-13 18:17:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 18:17:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 18:17:49,276 INFO L130 BoogieDeclarations]: Found specification of procedure check_config_address [2021-11-13 18:17:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure check_config_address [2021-11-13 18:17:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure ring_stop [2021-11-13 18:17:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_stop [2021-11-13 18:17:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_write [2021-11-13 18:17:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_write [2021-11-13 18:17:49,277 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-13 18:17:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-13 18:17:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:17:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:17:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:17:49,278 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cfg_read [2021-11-13 18:17:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cfg_read [2021-11-13 18:17:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-13 18:17:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-13 18:17:49,279 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_free [2021-11-13 18:17:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_free [2021-11-13 18:17:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure __crc32c_le [2021-11-13 18:17:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __crc32c_le [2021-11-13 18:17:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:17:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kcalloc [2021-11-13 18:17:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kcalloc [2021-11-13 18:17:49,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-13 18:17:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure ring_interrupt_index [2021-11-13 18:17:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_interrupt_index [2021-11-13 18:17:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-13 18:17:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-13 18:17:49,281 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_free [2021-11-13 18:17:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_free [2021-11-13 18:17:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure tb_path_is_invalid [2021-11-13 18:17:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_path_is_invalid [2021-11-13 18:17:49,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_driver_string [2021-11-13 18:17:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_driver_string [2021-11-13 18:17:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:17:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_transfer [2021-11-13 18:17:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_transfer [2021-11-13 18:17:49,283 INFO L130 BoogieDeclarations]: Found specification of procedure tb_cap_is_basic [2021-11-13 18:17:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_cap_is_basic [2021-11-13 18:17:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_init_path [2021-11-13 18:17:49,284 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_init_path [2021-11-13 18:17:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure __tb_path_deactivate_hops [2021-11-13 18:17:49,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __tb_path_deactivate_hops [2021-11-13 18:17:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_free [2021-11-13 18:17:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_free [2021-11-13 18:17:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure tb_is_upstream_port [2021-11-13 18:17:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_is_upstream_port [2021-11-13 18:17:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure ring_alloc [2021-11-13 18:17:49,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_alloc [2021-11-13 18:17:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure tb_upstream_port [2021-11-13 18:17:49,286 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_upstream_port [2021-11-13 18:17:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ring_enqueue [2021-11-13 18:17:49,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __ring_enqueue [2021-11-13 18:17:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure make_header [2021-11-13 18:17:49,287 INFO L138 BoogieDeclarations]: Found implementation of procedure make_header [2021-11-13 18:17:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-13 18:17:49,287 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-13 18:17:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure tb_free_invalid_tunnels [2021-11-13 18:17:49,287 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_free_invalid_tunnels [2021-11-13 18:17:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-11-13 18:17:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-11-13 18:17:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure tb_port_read [2021-11-13 18:17:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_port_read [2021-11-13 18:17:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-13 18:17:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-13 18:17:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure tb_pci_deactivate [2021-11-13 18:17:49,289 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_pci_deactivate [2021-11-13 18:17:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:17:49,289 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:17:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure tb_eeprom_out [2021-11-13 18:17:49,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_eeprom_out [2021-11-13 18:17:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure tb_sw_write [2021-11-13 18:17:49,290 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_sw_write [2021-11-13 18:17:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-13 18:17:49,290 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-13 18:17:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:17:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure tb_ctl_rx [2021-11-13 18:17:49,291 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_ctl_rx [2021-11-13 18:17:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:17:49,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:17:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure tb_route [2021-11-13 18:17:49,292 INFO L138 BoogieDeclarations]: Found implementation of procedure tb_route [2021-11-13 18:17:51,401 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:18:26,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:18:26,136 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:18:26,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:18:26 BoogieIcfgContainer [2021-11-13 18:18:26,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:18:26,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:18:26,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:18:26,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:18:26,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:17:43" (1/3) ... [2021-11-13 18:18:26,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2f7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:18:26, skipping insertion in model container [2021-11-13 18:18:26,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:17:48" (2/3) ... [2021-11-13 18:18:26,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e2f7a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:18:26, skipping insertion in model container [2021-11-13 18:18:26,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:18:26" (3/3) ... [2021-11-13 18:18:26,151 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--thunderbolt--thunderbolt.ko-entry_point.cil.out.i [2021-11-13 18:18:26,156 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:18:26,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:18:26,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:18:26,222 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 18:18:26,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:18:26,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) [2021-11-13 18:18:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-13 18:18:26,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:18:26,330 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:18:26,331 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:18:26,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:18:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash 2034179201, now seen corresponding path program 1 times [2021-11-13 18:18:26,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:18:26,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572342163] [2021-11-13 18:18:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:18:26,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:18:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:18:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:18:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 18:18:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:18:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-13 18:18:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 18:18:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-13 18:18:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-13 18:18:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:18:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:18:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:18:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:18:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-13 18:18:27,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:18:27,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572342163] [2021-11-13 18:18:27,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572342163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:18:27,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:18:27,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:18:27,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162157298] [2021-11-13 18:18:27,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:18:27,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:18:27,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:18:27,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:18:27,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:18:27,593 INFO L87 Difference]: Start difference. First operand has 2456 states, 1665 states have (on average 1.330930930930931) internal successors, (2216), 1703 states have internal predecessors, (2216), 664 states have call successors, (664), 126 states have call predecessors, (664), 125 states have return successors, (658), 654 states have call predecessors, (658), 658 states have call successors, (658) Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:18:29,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:34,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:37,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:44,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:49,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:51,240 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:56,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:18:58,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:02,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:07,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:19:07,750 INFO L93 Difference]: Finished difference Result 7664 states and 11673 transitions. [2021-11-13 18:19:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:19:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2021-11-13 18:19:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:19:07,836 INFO L225 Difference]: With dead ends: 7664 [2021-11-13 18:19:07,836 INFO L226 Difference]: Without dead ends: 5184 [2021-11-13 18:19:07,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:19:07,872 INFO L933 BasicCegarLoop]: 4009 mSDtfsCounter, 5845 mSDsluCounter, 4960 mSDsCounter, 0 mSdLazyCounter, 3384 mSolverCounterSat, 5271 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36783.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6341 SdHoareTripleChecker+Valid, 8969 SdHoareTripleChecker+Invalid, 8659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 136.28ms SdHoareTripleChecker+Time, 5271 IncrementalHoareTripleChecker+Valid, 3384 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39250.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:19:07,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6341 Valid, 8969 Invalid, 8659 Unknown, 0 Unchecked, 136.28ms Time], IncrementalHoareTripleChecker [5271 Valid, 3384 Invalid, 4 Unknown, 0 Unchecked, 39250.17ms Time] [2021-11-13 18:19:07,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2021-11-13 18:19:08,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 4183. [2021-11-13 18:19:08,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4183 states, 2837 states have (on average 1.3249911878745153) internal successors, (3759), 2889 states have internal predecessors, (3759), 1117 states have call successors, (1117), 229 states have call predecessors, (1117), 228 states have return successors, (1116), 1108 states have call predecessors, (1116), 1116 states have call successors, (1116) [2021-11-13 18:19:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4183 states to 4183 states and 5992 transitions. [2021-11-13 18:19:08,447 INFO L78 Accepts]: Start accepts. Automaton has 4183 states and 5992 transitions. Word has length 107 [2021-11-13 18:19:08,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:19:08,448 INFO L470 AbstractCegarLoop]: Abstraction has 4183 states and 5992 transitions. [2021-11-13 18:19:08,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:19:08,449 INFO L276 IsEmpty]: Start isEmpty. Operand 4183 states and 5992 transitions. [2021-11-13 18:19:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-13 18:19:08,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:19:08,458 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:19:08,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:19:08,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:19:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:19:08,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1327248420, now seen corresponding path program 1 times [2021-11-13 18:19:08,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:19:08,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863537046] [2021-11-13 18:19:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:19:08,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:19:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:19:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:19:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:19:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 18:19:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-13 18:19:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-13 18:19:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:19:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:19:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:19:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:19:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:19:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 18:19:09,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:19:09,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863537046] [2021-11-13 18:19:09,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863537046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:19:09,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:19:09,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:19:09,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199882192] [2021-11-13 18:19:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:19:09,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:19:09,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:19:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:19:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:19:09,050 INFO L87 Difference]: Start difference. First operand 4183 states and 5992 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:19:11,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:13,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:19,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:21,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:25,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:27,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:29,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:41,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:43,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:45,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:50,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:19:52,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:01,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:02,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:03,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:05,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:08,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:19,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:20,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:21,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:22,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:25,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:28,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:30,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:30,489 INFO L93 Difference]: Finished difference Result 12558 states and 18285 transitions. [2021-11-13 18:20:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:20:30,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2021-11-13 18:20:30,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:30,577 INFO L225 Difference]: With dead ends: 12558 [2021-11-13 18:20:30,577 INFO L226 Difference]: Without dead ends: 8383 [2021-11-13 18:20:30,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:20:30,606 INFO L933 BasicCegarLoop]: 4577 mSDtfsCounter, 6651 mSDsluCounter, 8540 mSDsCounter, 0 mSdLazyCounter, 6673 mSolverCounterSat, 5507 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76595.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7247 SdHoareTripleChecker+Valid, 13117 SdHoareTripleChecker+Invalid, 12187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.81ms SdHoareTripleChecker+Time, 5507 IncrementalHoareTripleChecker+Valid, 6673 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80551.73ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:30,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7247 Valid, 13117 Invalid, 12187 Unknown, 0 Unchecked, 130.81ms Time], IncrementalHoareTripleChecker [5507 Valid, 6673 Invalid, 7 Unknown, 0 Unchecked, 80551.73ms Time] [2021-11-13 18:20:30,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8383 states. [2021-11-13 18:20:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8383 to 6814. [2021-11-13 18:20:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6814 states, 4608 states have (on average 1.3181423611111112) internal successors, (6074), 4695 states have internal predecessors, (6074), 1818 states have call successors, (1818), 388 states have call predecessors, (1818), 387 states have return successors, (1817), 1805 states have call predecessors, (1817), 1817 states have call successors, (1817) [2021-11-13 18:20:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6814 states to 6814 states and 9709 transitions. [2021-11-13 18:20:31,126 INFO L78 Accepts]: Start accepts. Automaton has 6814 states and 9709 transitions. Word has length 100 [2021-11-13 18:20:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:31,128 INFO L470 AbstractCegarLoop]: Abstraction has 6814 states and 9709 transitions. [2021-11-13 18:20:31,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-13 18:20:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 6814 states and 9709 transitions. [2021-11-13 18:20:31,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-13 18:20:31,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:31,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:31,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:20:31,149 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:31,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash -355677677, now seen corresponding path program 1 times [2021-11-13 18:20:31,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:31,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959599198] [2021-11-13 18:20:31,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:31,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:20:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-13 18:20:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-13 18:20:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-13 18:20:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:20:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-13 18:20:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:20:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:20:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:20:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:32,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 18:20:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:32,035 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-13 18:20:32,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:32,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959599198] [2021-11-13 18:20:32,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959599198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:32,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:32,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 18:20:32,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031426459] [2021-11-13 18:20:32,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:32,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:20:32,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:32,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:20:32,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:20:32,041 INFO L87 Difference]: Start difference. First operand 6814 states and 9709 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:20:34,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:36,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:38,383 WARN L515 Checker$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 18:20:40,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:46,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:48,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:50,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:52,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:20:54,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:01,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:07,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:10,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:12,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:15,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:24,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:26,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:28,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:32,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:34,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:41,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:42,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:21:42,172 INFO L93 Difference]: Finished difference Result 15175 states and 21986 transitions. [2021-11-13 18:21:42,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:21:42,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2021-11-13 18:21:42,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:21:42,260 INFO L225 Difference]: With dead ends: 15175 [2021-11-13 18:21:42,260 INFO L226 Difference]: Without dead ends: 8364 [2021-11-13 18:21:42,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:21:42,304 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 1389 mSDsluCounter, 9621 mSDsCounter, 0 mSdLazyCounter, 5523 mSolverCounterSat, 1126 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66402.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 12714 SdHoareTripleChecker+Invalid, 6662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 87.40ms SdHoareTripleChecker+Time, 1126 IncrementalHoareTripleChecker+Valid, 5523 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69498.25ms IncrementalHoareTripleChecker+Time [2021-11-13 18:21:42,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1684 Valid, 12714 Invalid, 6662 Unknown, 0 Unchecked, 87.40ms Time], IncrementalHoareTripleChecker [1126 Valid, 5523 Invalid, 13 Unknown, 0 Unchecked, 69498.25ms Time] [2021-11-13 18:21:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8364 states. [2021-11-13 18:21:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8364 to 6792. [2021-11-13 18:21:42,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6792 states, 4590 states have (on average 1.3176470588235294) internal successors, (6048), 4677 states have internal predecessors, (6048), 1815 states have call successors, (1815), 387 states have call predecessors, (1815), 386 states have return successors, (1814), 1802 states have call predecessors, (1814), 1814 states have call successors, (1814) [2021-11-13 18:21:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6792 states to 6792 states and 9677 transitions. [2021-11-13 18:21:42,923 INFO L78 Accepts]: Start accepts. Automaton has 6792 states and 9677 transitions. Word has length 130 [2021-11-13 18:21:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:21:42,924 INFO L470 AbstractCegarLoop]: Abstraction has 6792 states and 9677 transitions. [2021-11-13 18:21:42,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 18:21:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6792 states and 9677 transitions. [2021-11-13 18:21:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 18:21:42,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:21:42,940 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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 18:21:42,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:21:42,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:21:42,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:21:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2011288551, now seen corresponding path program 1 times [2021-11-13 18:21:42,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:21:42,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303436675] [2021-11-13 18:21:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:21:42,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:21:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:21:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:21:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:21:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:21:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:21:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:21:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:21:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:21:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:21:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:21:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-13 18:21:43,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:21:43,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303436675] [2021-11-13 18:21:43,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303436675] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:21:43,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:21:43,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:21:43,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139680627] [2021-11-13 18:21:43,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:21:43,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:21:43,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:21:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:21:43,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:21:43,648 INFO L87 Difference]: Start difference. First operand 6792 states and 9677 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:21:45,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:47,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:54,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:56,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:58,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:00,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:03,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:05,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:15,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:17,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:22,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:24,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:27,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:32,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:36,569 WARN L515 Checker$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 18:22:37,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:39,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:44,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:49,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:53,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:22:54,559 INFO L93 Difference]: Finished difference Result 23449 states and 34144 transitions. [2021-11-13 18:22:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 18:22:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2021-11-13 18:22:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:22:54,690 INFO L225 Difference]: With dead ends: 23449 [2021-11-13 18:22:54,691 INFO L226 Difference]: Without dead ends: 16670 [2021-11-13 18:22:54,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:22:54,737 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 7085 mSDsluCounter, 10164 mSDsCounter, 0 mSdLazyCounter, 5424 mSolverCounterSat, 5684 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66274.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7714 SdHoareTripleChecker+Valid, 15182 SdHoareTripleChecker+Invalid, 11116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.35ms SdHoareTripleChecker+Time, 5684 IncrementalHoareTripleChecker+Valid, 5424 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69917.07ms IncrementalHoareTripleChecker+Time [2021-11-13 18:22:54,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7714 Valid, 15182 Invalid, 11116 Unknown, 0 Unchecked, 105.35ms Time], IncrementalHoareTripleChecker [5684 Valid, 5424 Invalid, 8 Unknown, 0 Unchecked, 69917.07ms Time] [2021-11-13 18:22:54,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16670 states. [2021-11-13 18:22:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16670 to 13674. [2021-11-13 18:22:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 9243 states have (on average 1.3178621659634318) internal successors, (12181), 9429 states have internal predecessors, (12181), 3648 states have call successors, (3648), 771 states have call predecessors, (3648), 782 states have return successors, (3695), 3623 states have call predecessors, (3695), 3647 states have call successors, (3695) [2021-11-13 18:22:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 19524 transitions. [2021-11-13 18:22:56,015 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 19524 transitions. Word has length 140 [2021-11-13 18:22:56,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:56,016 INFO L470 AbstractCegarLoop]: Abstraction has 13674 states and 19524 transitions. [2021-11-13 18:22:56,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:22:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 19524 transitions. [2021-11-13 18:22:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-13 18:22:56,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:56,039 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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 18:22:56,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:22:56,039 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:56,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:56,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1245094171, now seen corresponding path program 1 times [2021-11-13 18:22:56,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:56,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151621306] [2021-11-13 18:22:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:56,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:22:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:22:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:22:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:22:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-13 18:22:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:22:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-13 18:22:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-13 18:22:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 18:22:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-13 18:22:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:22:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:22:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-13 18:22:56,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:56,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151621306] [2021-11-13 18:22:56,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151621306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:56,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:56,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:22:56,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112405786] [2021-11-13 18:22:56,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:56,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:22:56,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:56,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:22:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:22:56,697 INFO L87 Difference]: Start difference. First operand 13674 states and 19524 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:22:58,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:00,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:04,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:07,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:11,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:15,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:16,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:17,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:20,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:25,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:27,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:29,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:34,003 INFO L93 Difference]: Finished difference Result 22567 states and 32499 transitions. [2021-11-13 18:23:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:23:34,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2021-11-13 18:23:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:34,070 INFO L225 Difference]: With dead ends: 22567 [2021-11-13 18:23:34,070 INFO L226 Difference]: Without dead ends: 8906 [2021-11-13 18:23:34,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:23:34,266 INFO L933 BasicCegarLoop]: 3131 mSDtfsCounter, 1757 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 1936 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34934.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.56ms SdHoareTripleChecker+Time, 1936 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36781.99ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:34,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2051 Valid, 7842 Invalid, 4764 Unknown, 0 Unchecked, 48.56ms Time], IncrementalHoareTripleChecker [1936 Valid, 2822 Invalid, 6 Unknown, 0 Unchecked, 36781.99ms Time] [2021-11-13 18:23:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2021-11-13 18:23:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7270. [2021-11-13 18:23:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7270 states, 4917 states have (on average 1.3156396176530405) internal successors, (6469), 5013 states have internal predecessors, (6469), 1922 states have call successors, (1922), 431 states have call predecessors, (1922), 430 states have return successors, (1921), 1909 states have call predecessors, (1921), 1921 states have call successors, (1921) [2021-11-13 18:23:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7270 states to 7270 states and 10312 transitions. [2021-11-13 18:23:34,751 INFO L78 Accepts]: Start accepts. Automaton has 7270 states and 10312 transitions. Word has length 140 [2021-11-13 18:23:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:23:34,752 INFO L470 AbstractCegarLoop]: Abstraction has 7270 states and 10312 transitions. [2021-11-13 18:23:34,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 18:23:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 7270 states and 10312 transitions. [2021-11-13 18:23:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-13 18:23:34,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:23:34,770 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:23:34,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:23:34,771 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:23:34,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:23:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash -82410969, now seen corresponding path program 1 times [2021-11-13 18:23:34,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:23:34,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076340500] [2021-11-13 18:23:34,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:23:34,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:23:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:23:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:23:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:23:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-13 18:23:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-13 18:23:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 18:23:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:23:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-13 18:23:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-13 18:23:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:23:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:23:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-13 18:23:35,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:23:35,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076340500] [2021-11-13 18:23:35,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076340500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:23:35,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:23:35,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:23:35,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069142718] [2021-11-13 18:23:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:23:35,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:23:35,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:23:35,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:23:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:23:35,571 INFO L87 Difference]: Start difference. First operand 7270 states and 10312 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:23:37,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:43,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:46,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:48,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:51,652 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:53,807 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:55,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:03,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:06,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:09,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:10,776 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:13,969 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:15,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:17,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:21,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:26,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:28,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:33,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:38,180 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:38,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:24:38,693 INFO L93 Difference]: Finished difference Result 19591 states and 28325 transitions. [2021-11-13 18:24:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:24:38,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 157 [2021-11-13 18:24:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:24:38,775 INFO L225 Difference]: With dead ends: 19591 [2021-11-13 18:24:38,775 INFO L226 Difference]: Without dead ends: 12818 [2021-11-13 18:24:38,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-13 18:24:38,809 INFO L933 BasicCegarLoop]: 3914 mSDtfsCounter, 7458 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 5916 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58498.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8027 SdHoareTripleChecker+Valid, 11162 SdHoareTripleChecker+Invalid, 10913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 106.73ms SdHoareTripleChecker+Time, 5916 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62217.27ms IncrementalHoareTripleChecker+Time [2021-11-13 18:24:38,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8027 Valid, 11162 Invalid, 10913 Unknown, 0 Unchecked, 106.73ms Time], IncrementalHoareTripleChecker [5916 Valid, 4989 Invalid, 8 Unknown, 0 Unchecked, 62217.27ms Time] [2021-11-13 18:24:38,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12818 states. [2021-11-13 18:24:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12818 to 10401. [2021-11-13 18:24:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10401 states, 7021 states have (on average 1.3129183876940607) internal successors, (9218), 7159 states have internal predecessors, (9218), 2751 states have call successors, (2751), 629 states have call predecessors, (2751), 628 states have return successors, (2750), 2734 states have call predecessors, (2750), 2750 states have call successors, (2750) [2021-11-13 18:24:39,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10401 states to 10401 states and 14719 transitions. [2021-11-13 18:24:39,796 INFO L78 Accepts]: Start accepts. Automaton has 10401 states and 14719 transitions. Word has length 157 [2021-11-13 18:24:39,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:24:39,797 INFO L470 AbstractCegarLoop]: Abstraction has 10401 states and 14719 transitions. [2021-11-13 18:24:39,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-13 18:24:39,797 INFO L276 IsEmpty]: Start isEmpty. Operand 10401 states and 14719 transitions. [2021-11-13 18:24:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-13 18:24:39,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:24:39,818 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:24:39,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:24:39,819 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:24:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:24:39,820 INFO L85 PathProgramCache]: Analyzing trace with hash -61391554, now seen corresponding path program 1 times [2021-11-13 18:24:39,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:24:39,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061707488] [2021-11-13 18:24:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:24:39,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:24:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:24:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:24:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-13 18:24:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:24:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-13 18:24:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:24:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-13 18:24:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:24:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 18:24:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-13 18:24:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:24:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:24:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-13 18:24:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-13 18:24:40,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:24:40,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061707488] [2021-11-13 18:24:40,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061707488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:24:40,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:24:40,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:24:40,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944223462] [2021-11-13 18:24:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:24:40,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:24:40,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:24:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:24:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:24:40,474 INFO L87 Difference]: Start difference. First operand 10401 states and 14719 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 18:24:42,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:44,663 WARN L515 Checker$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 18:24:46,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:53,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:55,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:58,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:00,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:02,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:05,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:13,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:15,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:20,619 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:22,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:28,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:29,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:36,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:37,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:39,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:43,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:52,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:54,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:55,587 WARN L515 Checker$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 18:25:57,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:25:59,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:26:03,113 INFO L93 Difference]: Finished difference Result 27583 states and 39829 transitions. [2021-11-13 18:26:03,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 18:26:03,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 150 [2021-11-13 18:26:03,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:26:03,227 INFO L225 Difference]: With dead ends: 27583 [2021-11-13 18:26:03,227 INFO L226 Difference]: Without dead ends: 17679 [2021-11-13 18:26:03,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:26:03,278 INFO L933 BasicCegarLoop]: 4997 mSDtfsCounter, 5236 mSDsluCounter, 7542 mSDsCounter, 0 mSdLazyCounter, 6138 mSolverCounterSat, 3777 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77181.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5832 SdHoareTripleChecker+Valid, 12539 SdHoareTripleChecker+Invalid, 9927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.31ms SdHoareTripleChecker+Time, 3777 IncrementalHoareTripleChecker+Valid, 6138 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81545.68ms IncrementalHoareTripleChecker+Time [2021-11-13 18:26:03,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5832 Valid, 12539 Invalid, 9927 Unknown, 0 Unchecked, 101.31ms Time], IncrementalHoareTripleChecker [3777 Valid, 6138 Invalid, 12 Unknown, 0 Unchecked, 81545.68ms Time] [2021-11-13 18:26:03,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17679 states. [2021-11-13 18:26:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17679 to 14375. [2021-11-13 18:26:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14375 states, 9726 states have (on average 1.3118445404071561) internal successors, (12759), 9915 states have internal predecessors, (12759), 3776 states have call successors, (3776), 873 states have call predecessors, (3776), 872 states have return successors, (3775), 3755 states have call predecessors, (3775), 3775 states have call successors, (3775) [2021-11-13 18:26:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14375 states to 14375 states and 20310 transitions. [2021-11-13 18:26:04,579 INFO L78 Accepts]: Start accepts. Automaton has 14375 states and 20310 transitions. Word has length 150 [2021-11-13 18:26:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:26:04,582 INFO L470 AbstractCegarLoop]: Abstraction has 14375 states and 20310 transitions. [2021-11-13 18:26:04,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-13 18:26:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 14375 states and 20310 transitions. [2021-11-13 18:26:04,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-13 18:26:04,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:26:04,603 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:26:04,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:26:04,604 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:26:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:26:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1975612218, now seen corresponding path program 1 times [2021-11-13 18:26:04,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:26:04,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533191024] [2021-11-13 18:26:04,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:26:04,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:26:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:26:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:26:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:26:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-13 18:26:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-13 18:26:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:26:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-13 18:26:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:26:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:26:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:26:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-13 18:26:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:26:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:26:05,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-13 18:26:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-13 18:26:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:26:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:26:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:26:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:26:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:26:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:26:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:26:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-13 18:26:05,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:26:05,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533191024] [2021-11-13 18:26:05,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533191024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:26:05,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:26:05,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:26:05,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231222685] [2021-11-13 18:26:05,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:26:05,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:26:05,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:26:05,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:26:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:26:05,381 INFO L87 Difference]: Start difference. First operand 14375 states and 20310 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:26:07,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:13,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:15,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:24,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:31,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:36,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:39,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:40,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:42,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:43,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:44,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:46,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:54,123 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:26:58,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:01,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:09,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:27:09,996 INFO L93 Difference]: Finished difference Result 32022 states and 46240 transitions. [2021-11-13 18:27:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:27:09,997 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2021-11-13 18:27:09,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:27:10,089 INFO L225 Difference]: With dead ends: 32022 [2021-11-13 18:27:10,089 INFO L226 Difference]: Without dead ends: 17662 [2021-11-13 18:27:10,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:27:10,164 INFO L933 BasicCegarLoop]: 3102 mSDtfsCounter, 1051 mSDsluCounter, 8061 mSDsCounter, 0 mSdLazyCounter, 5445 mSolverCounterSat, 924 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60299.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 11163 SdHoareTripleChecker+Invalid, 6377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.80ms SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 5445 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63589.19ms IncrementalHoareTripleChecker+Time [2021-11-13 18:27:10,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1343 Valid, 11163 Invalid, 6377 Unknown, 0 Unchecked, 77.80ms Time], IncrementalHoareTripleChecker [924 Valid, 5445 Invalid, 8 Unknown, 0 Unchecked, 63589.19ms Time] [2021-11-13 18:27:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17662 states. [2021-11-13 18:27:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17662 to 14385. [2021-11-13 18:27:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14385 states, 9736 states have (on average 1.3115242399342646) internal successors, (12769), 9925 states have internal predecessors, (12769), 3776 states have call successors, (3776), 873 states have call predecessors, (3776), 872 states have return successors, (3775), 3755 states have call predecessors, (3775), 3775 states have call successors, (3775) [2021-11-13 18:27:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14385 states to 14385 states and 20320 transitions. [2021-11-13 18:27:11,412 INFO L78 Accepts]: Start accepts. Automaton has 14385 states and 20320 transitions. Word has length 152 [2021-11-13 18:27:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:27:11,413 INFO L470 AbstractCegarLoop]: Abstraction has 14385 states and 20320 transitions. [2021-11-13 18:27:11,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:27:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 14385 states and 20320 transitions. [2021-11-13 18:27:11,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-13 18:27:11,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:27:11,433 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:27:11,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:27:11,434 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:27:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:27:11,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1030142956, now seen corresponding path program 1 times [2021-11-13 18:27:11,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:27:11,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699793818] [2021-11-13 18:27:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:27:11,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:27:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-13 18:27:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:11,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:27:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:27:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-13 18:27:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-13 18:27:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-13 18:27:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-13 18:27:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-13 18:27:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:27:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-13 18:27:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-13 18:27:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:27:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:27:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-13 18:27:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 18:27:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:27:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-13 18:27:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-13 18:27:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:27:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:27:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-13 18:27:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:27:12,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-13 18:27:12,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:27:12,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699793818] [2021-11-13 18:27:12,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699793818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:27:12,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:27:12,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 18:27:12,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288217966] [2021-11-13 18:27:12,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:27:12,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 18:27:12,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:27:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 18:27:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:27:12,310 INFO L87 Difference]: Start difference. First operand 14385 states and 20320 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:27:14,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:16,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:21,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:23,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:29,048 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:31,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:35,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:38,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:42,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:44,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:45,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:48,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:54,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:27:57,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:03,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:05,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:06,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:28:07,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:28:07,568 INFO L93 Difference]: Finished difference Result 17662 states and 25694 transitions. [2021-11-13 18:28:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:28:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2021-11-13 18:28:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:28:07,572 INFO L225 Difference]: With dead ends: 17662 [2021-11-13 18:28:07,572 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 18:28:07,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:28:07,622 INFO L933 BasicCegarLoop]: 3063 mSDtfsCounter, 5604 mSDsluCounter, 4007 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 4030 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51246.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 7070 SdHoareTripleChecker+Invalid, 7369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.32ms SdHoareTripleChecker+Time, 4030 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54247.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:28:07,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5929 Valid, 7070 Invalid, 7369 Unknown, 0 Unchecked, 61.32ms Time], IncrementalHoareTripleChecker [4030 Valid, 3334 Invalid, 5 Unknown, 0 Unchecked, 54247.53ms Time] [2021-11-13 18:28:07,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 18:28:07,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 18:28:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:28:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 18:28:07,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 151 [2021-11-13 18:28:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:28:07,630 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:28:07,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-13 18:28:07,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:28:07,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 18:28:07,633 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:28:07,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:28:07,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.