./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:39:30,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:39:30,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:39:30,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:39:30,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:39:30,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:39:30,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:39:30,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:39:30,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:39:30,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:39:30,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:39:30,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:39:30,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:39:30,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:39:30,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:39:30,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:39:30,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:39:30,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:39:30,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:39:30,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:39:30,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:39:30,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:39:30,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:39:30,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:39:30,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:39:30,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:39:30,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:39:30,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:39:30,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:39:30,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:39:30,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:39:30,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:39:30,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:39:30,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:39:30,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:39:30,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:39:30,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:39:30,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:39:30,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:39:30,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:39:30,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:39:30,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:39:30,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:39:30,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:39:30,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:39:30,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:39:30,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:39:30,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:39:30,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:39:30,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:39:30,809 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:39:30,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:39:30,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:39:30,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:39:30,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:39:30,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:39:30,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:39:30,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:39:30,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:39:30,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:39:30,813 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:39:30,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:39:30,813 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1edb128dac5f1749a8164cdbec3766f388b8d95e25a83a97d25b5ef9e1604ba3 [2021-12-28 03:39:31,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:39:31,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:39:31,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:39:31,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:39:31,089 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:39:31,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2021-12-28 03:39:31,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c74e402/72b867eccd4149a4b60ded5349a00083/FLAGdac8df6ca [2021-12-28 03:39:31,897 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:39:31,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2021-12-28 03:39:31,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c74e402/72b867eccd4149a4b60ded5349a00083/FLAGdac8df6ca [2021-12-28 03:39:32,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c74e402/72b867eccd4149a4b60ded5349a00083 [2021-12-28 03:39:32,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:39:32,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:39:32,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:39:32,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:39:32,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:39:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:39:32" (1/1) ... [2021-12-28 03:39:32,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad99711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:32, skipping insertion in model container [2021-12-28 03:39:32,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:39:32" (1/1) ... [2021-12-28 03:39:32,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:39:32,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:39:33,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2021-12-28 03:39:33,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:39:33,986 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:39:34,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i[424236,424249] [2021-12-28 03:39:34,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:39:34,460 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:39:34,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34 WrapperNode [2021-12-28 03:39:34,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:39:34,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:39:34,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:39:34,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:39:34,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:34,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:34,859 INFO L137 Inliner]: procedures = 189, calls = 6921, calls flagged for inlining = 69, calls inlined = 54, statements flattened = 16566 [2021-12-28 03:39:34,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:39:34,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:39:34,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:39:34,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:39:34,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:34,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:34,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:34,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:35,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:35,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:35,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:35,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:39:35,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:39:35,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:39:35,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:39:35,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (1/1) ... [2021-12-28 03:39:35,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:39:35,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:39:35,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:39:35,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:39:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock [2021-12-28 03:39:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock [2021-12-28 03:39:35,387 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2021-12-28 03:39:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2021-12-28 03:39:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2021-12-28 03:39:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2021-12-28 03:39:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:39:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 03:39:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 03:39:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2021-12-28 03:39:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2021-12-28 03:39:35,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock [2021-12-28 03:39:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2021-12-28 03:39:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2021-12-28 03:39:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:39:35,389 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2021-12-28 03:39:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2021-12-28 03:39:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2021-12-28 03:39:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2021-12-28 03:39:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2021-12-28 03:39:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2021-12-28 03:39:35,390 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:39:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:39:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2021-12-28 03:39:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2021-12-28 03:39:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2021-12-28 03:39:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2021-12-28 03:39:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:39:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:39:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:39:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2021-12-28 03:39:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2021-12-28 03:39:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:39:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:39:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2021-12-28 03:39:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2021-12-28 03:39:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2021-12-28 03:39:35,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2021-12-28 03:39:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2021-12-28 03:39:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2021-12-28 03:39:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-28 03:39:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-28 03:39:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:39:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:39:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 03:39:35,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 03:39:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2021-12-28 03:39:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2021-12-28 03:39:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:39:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:39:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:39:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:39:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2021-12-28 03:39:35,395 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2021-12-28 03:39:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:39:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:39:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:39:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2021-12-28 03:39:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2021-12-28 03:39:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2021-12-28 03:39:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2021-12-28 03:39:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2021-12-28 03:39:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2021-12-28 03:39:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:39:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:39:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:39:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2021-12-28 03:39:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2021-12-28 03:39:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2021-12-28 03:39:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2021-12-28 03:39:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2021-12-28 03:39:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2021-12-28 03:39:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:39:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2021-12-28 03:39:35,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2021-12-28 03:39:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2021-12-28 03:39:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2021-12-28 03:39:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2021-12-28 03:39:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2021-12-28 03:39:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2021-12-28 03:39:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2021-12-28 03:39:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:39:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:39:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2021-12-28 03:39:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2021-12-28 03:39:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2021-12-28 03:39:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2021-12-28 03:39:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:39:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-28 03:39:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-28 03:39:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock [2021-12-28 03:39:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock [2021-12-28 03:39:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2021-12-28 03:39:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2021-12-28 03:39:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:39:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2021-12-28 03:39:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2021-12-28 03:39:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:39:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:39:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2021-12-28 03:39:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2021-12-28 03:39:36,304 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:39:36,306 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:39:49,401 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:39:49,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:39:49,426 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 03:39:49,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:39:49 BoogieIcfgContainer [2021-12-28 03:39:49,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:39:49,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:39:49,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:39:49,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:39:49,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:39:32" (1/3) ... [2021-12-28 03:39:49,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf1d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:39:49, skipping insertion in model container [2021-12-28 03:39:49,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:39:34" (2/3) ... [2021-12-28 03:39:49,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbf1d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:39:49, skipping insertion in model container [2021-12-28 03:39:49,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:39:49" (3/3) ... [2021-12-28 03:39:49,441 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers--media--dvb-frontends--stv090x-ko---32_7a--linux-3.7.3.i [2021-12-28 03:39:49,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:39:49,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:39:49,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:39:49,510 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 [2021-12-28 03:39:49,510 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:39:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) [2021-12-28 03:39:49,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 03:39:49,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:49,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:49,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:49,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1796736915, now seen corresponding path program 1 times [2021-12-28 03:39:49,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:49,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099793667] [2021-12-28 03:39:49,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:49,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:50,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:50,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:50,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099793667] [2021-12-28 03:39:50,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099793667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:50,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:50,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:50,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886907214] [2021-12-28 03:39:50,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:50,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:50,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:50,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:50,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:50,222 INFO L87 Difference]: Start difference. First operand has 5301 states, 3974 states have (on average 1.5359838953195772) internal successors, (6104), 3988 states have internal predecessors, (6104), 1277 states have call successors, (1277), 48 states have call predecessors, (1277), 48 states have return successors, (1277), 1276 states have call predecessors, (1277), 1277 states have call successors, (1277) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:50,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:50,706 INFO L93 Difference]: Finished difference Result 10596 states and 17366 transitions. [2021-12-28 03:39:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:50,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 03:39:50,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:50,773 INFO L225 Difference]: With dead ends: 10596 [2021-12-28 03:39:50,773 INFO L226 Difference]: Without dead ends: 5294 [2021-12-28 03:39:50,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:50,838 INFO L933 BasicCegarLoop]: 8643 mSDtfsCounter, 8639 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8639 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:50,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8639 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-12-28 03:39:51,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 5294. [2021-12-28 03:39:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 3970 states have (on average 1.5357682619647355) internal successors, (6097), 3981 states have internal predecessors, (6097), 1276 states have call successors, (1276), 48 states have call predecessors, (1276), 47 states have return successors, (1267), 1266 states have call predecessors, (1267), 1267 states have call successors, (1267) [2021-12-28 03:39:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 8640 transitions. [2021-12-28 03:39:51,415 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 8640 transitions. Word has length 8 [2021-12-28 03:39:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:51,416 INFO L470 AbstractCegarLoop]: Abstraction has 5294 states and 8640 transitions. [2021-12-28 03:39:51,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 8640 transitions. [2021-12-28 03:39:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 03:39:51,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:51,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:51,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:39:51,418 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash -138225567, now seen corresponding path program 1 times [2021-12-28 03:39:51,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:51,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507940493] [2021-12-28 03:39:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:51,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:51,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:51,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:51,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507940493] [2021-12-28 03:39:51,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507940493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:51,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:51,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:51,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040672123] [2021-12-28 03:39:51,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:51,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:51,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:51,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:51,727 INFO L87 Difference]: Start difference. First operand 5294 states and 8640 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:52,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:52,079 INFO L93 Difference]: Finished difference Result 10658 states and 17395 transitions. [2021-12-28 03:39:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:52,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-28 03:39:52,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:52,127 INFO L225 Difference]: With dead ends: 10658 [2021-12-28 03:39:52,127 INFO L226 Difference]: Without dead ends: 5367 [2021-12-28 03:39:52,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:52,177 INFO L933 BasicCegarLoop]: 8640 mSDtfsCounter, 8370 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8370 SdHoareTripleChecker+Valid, 9007 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:52,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8370 Valid, 9007 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5367 states. [2021-12-28 03:39:52,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5367 to 5364. [2021-12-28 03:39:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 4032 states have (on average 1.5364583333333333) internal successors, (6195), 4041 states have internal predecessors, (6195), 1279 states have call successors, (1279), 54 states have call predecessors, (1279), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2021-12-28 03:39:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 8745 transitions. [2021-12-28 03:39:52,917 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 8745 transitions. Word has length 9 [2021-12-28 03:39:52,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:52,917 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 8745 transitions. [2021-12-28 03:39:52,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:52,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 8745 transitions. [2021-12-28 03:39:52,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-28 03:39:52,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:52,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:52,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:39:52,919 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:52,920 INFO L85 PathProgramCache]: Analyzing trace with hash 7484502, now seen corresponding path program 1 times [2021-12-28 03:39:52,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:52,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866287243] [2021-12-28 03:39:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:52,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:53,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:53,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866287243] [2021-12-28 03:39:53,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866287243] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:53,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:53,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:53,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158139211] [2021-12-28 03:39:53,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:53,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:53,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:53,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:53,246 INFO L87 Difference]: Start difference. First operand 5364 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:53,491 INFO L93 Difference]: Finished difference Result 5366 states and 8746 transitions. [2021-12-28 03:39:53,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:53,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-28 03:39:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:53,536 INFO L225 Difference]: With dead ends: 5366 [2021-12-28 03:39:53,537 INFO L226 Difference]: Without dead ends: 5363 [2021-12-28 03:39:53,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:53,549 INFO L933 BasicCegarLoop]: 8633 mSDtfsCounter, 8627 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8627 SdHoareTripleChecker+Valid, 8633 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:53,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8627 Valid, 8633 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2021-12-28 03:39:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5363. [2021-12-28 03:39:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 4032 states have (on average 1.5362103174603174) internal successors, (6194), 4040 states have internal predecessors, (6194), 1278 states have call successors, (1278), 54 states have call predecessors, (1278), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2021-12-28 03:39:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 8743 transitions. [2021-12-28 03:39:54,212 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 8743 transitions. Word has length 10 [2021-12-28 03:39:54,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:54,212 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 8743 transitions. [2021-12-28 03:39:54,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 8743 transitions. [2021-12-28 03:39:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 03:39:54,213 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:54,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:54,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:39:54,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:54,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:54,214 INFO L85 PathProgramCache]: Analyzing trace with hash 229534212, now seen corresponding path program 1 times [2021-12-28 03:39:54,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:54,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005466407] [2021-12-28 03:39:54,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:54,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:54,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:54,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005466407] [2021-12-28 03:39:54,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005466407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:54,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:54,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:54,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635965515] [2021-12-28 03:39:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:54,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:54,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:54,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:54,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:54,453 INFO L87 Difference]: Start difference. First operand 5363 states and 8743 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:54,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:54,676 INFO L93 Difference]: Finished difference Result 5365 states and 8744 transitions. [2021-12-28 03:39:54,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:54,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-28 03:39:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:54,710 INFO L225 Difference]: With dead ends: 5365 [2021-12-28 03:39:54,711 INFO L226 Difference]: Without dead ends: 5362 [2021-12-28 03:39:54,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:54,722 INFO L933 BasicCegarLoop]: 8631 mSDtfsCounter, 8624 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8624 SdHoareTripleChecker+Valid, 8631 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:54,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8624 Valid, 8631 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:54,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5362 states. [2021-12-28 03:39:55,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5362 to 5362. [2021-12-28 03:39:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5362 states, 4032 states have (on average 1.5359623015873016) internal successors, (6193), 4039 states have internal predecessors, (6193), 1277 states have call successors, (1277), 54 states have call predecessors, (1277), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2021-12-28 03:39:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5362 states to 5362 states and 8741 transitions. [2021-12-28 03:39:55,328 INFO L78 Accepts]: Start accepts. Automaton has 5362 states and 8741 transitions. Word has length 11 [2021-12-28 03:39:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:55,328 INFO L470 AbstractCegarLoop]: Abstraction has 5362 states and 8741 transitions. [2021-12-28 03:39:55,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5362 states and 8741 transitions. [2021-12-28 03:39:55,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-28 03:39:55,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:55,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:55,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:39:55,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:55,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:55,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1476854503, now seen corresponding path program 1 times [2021-12-28 03:39:55,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:55,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786319381] [2021-12-28 03:39:55,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:55,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:55,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:55,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786319381] [2021-12-28 03:39:55,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786319381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:55,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:55,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:55,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103763847] [2021-12-28 03:39:55,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:55,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:55,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:55,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:55,563 INFO L87 Difference]: Start difference. First operand 5362 states and 8741 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:55,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:55,760 INFO L93 Difference]: Finished difference Result 5364 states and 8742 transitions. [2021-12-28 03:39:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:55,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-28 03:39:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:55,804 INFO L225 Difference]: With dead ends: 5364 [2021-12-28 03:39:55,804 INFO L226 Difference]: Without dead ends: 5361 [2021-12-28 03:39:55,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:55,812 INFO L933 BasicCegarLoop]: 8629 mSDtfsCounter, 8621 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8621 SdHoareTripleChecker+Valid, 8629 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:55,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8621 Valid, 8629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2021-12-28 03:39:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 5361. [2021-12-28 03:39:56,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 4032 states have (on average 1.5357142857142858) internal successors, (6192), 4038 states have internal predecessors, (6192), 1276 states have call successors, (1276), 54 states have call predecessors, (1276), 52 states have return successors, (1271), 1270 states have call predecessors, (1271), 1271 states have call successors, (1271) [2021-12-28 03:39:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8739 transitions. [2021-12-28 03:39:56,419 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8739 transitions. Word has length 12 [2021-12-28 03:39:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:56,420 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 8739 transitions. [2021-12-28 03:39:56,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8739 transitions. [2021-12-28 03:39:56,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-28 03:39:56,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:56,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:39:56,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:39:56,421 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:56,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1459675047, now seen corresponding path program 1 times [2021-12-28 03:39:56,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:56,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37994182] [2021-12-28 03:39:56,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:56,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:39:56,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:56,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37994182] [2021-12-28 03:39:56,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37994182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:56,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:56,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:39:56,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983465013] [2021-12-28 03:39:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:56,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:39:56,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:56,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:39:56,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:56,641 INFO L87 Difference]: Start difference. First operand 5361 states and 8739 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:39:57,090 INFO L93 Difference]: Finished difference Result 16061 states and 26323 transitions. [2021-12-28 03:39:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:39:57,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-28 03:39:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:39:57,172 INFO L225 Difference]: With dead ends: 16061 [2021-12-28 03:39:57,172 INFO L226 Difference]: Without dead ends: 10697 [2021-12-28 03:39:57,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:39:57,299 INFO L933 BasicCegarLoop]: 10012 mSDtfsCounter, 8649 mSDsluCounter, 8651 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8649 SdHoareTripleChecker+Valid, 18663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:39:57,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8649 Valid, 18663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:39:57,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10697 states. [2021-12-28 03:39:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10697 to 10688. [2021-12-28 03:39:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10688 states, 8041 states have (on average 1.5368735231936326) internal successors, (12358), 8052 states have internal predecessors, (12358), 2544 states have call successors, (2544), 105 states have call predecessors, (2544), 102 states have return successors, (2617), 2534 states have call predecessors, (2617), 2537 states have call successors, (2617) [2021-12-28 03:39:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 17519 transitions. [2021-12-28 03:39:58,509 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 17519 transitions. Word has length 13 [2021-12-28 03:39:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:39:58,509 INFO L470 AbstractCegarLoop]: Abstraction has 10688 states and 17519 transitions. [2021-12-28 03:39:58,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:39:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 17519 transitions. [2021-12-28 03:39:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 03:39:58,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:39:58,522 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] [2021-12-28 03:39:58,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 03:39:58,522 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:39:58,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:39:58,522 INFO L85 PathProgramCache]: Analyzing trace with hash -836050860, now seen corresponding path program 1 times [2021-12-28 03:39:58,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:39:58,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112298132] [2021-12-28 03:39:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:39:58,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:39:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-28 03:39:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 03:39:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:39:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-28 03:39:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 03:39:58,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:39:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:39:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:39:59,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:39:59,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112298132] [2021-12-28 03:39:59,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112298132] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:39:59,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:39:59,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:39:59,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169125517] [2021-12-28 03:39:59,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:39:59,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:39:59,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:39:59,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:39:59,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:39:59,011 INFO L87 Difference]: Start difference. First operand 10688 states and 17519 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 03:40:06,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 03:40:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:40:07,366 INFO L93 Difference]: Finished difference Result 21624 states and 35542 transitions. [2021-12-28 03:40:07,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 03:40:07,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2021-12-28 03:40:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:40:07,429 INFO L225 Difference]: With dead ends: 21624 [2021-12-28 03:40:07,429 INFO L226 Difference]: Without dead ends: 10939 [2021-12-28 03:40:07,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-28 03:40:07,518 INFO L933 BasicCegarLoop]: 8509 mSDtfsCounter, 509 mSDsluCounter, 22004 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 1325 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 30513 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1325 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:40:07,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 30513 Invalid, 3847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1325 Valid, 2521 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-28 03:40:07,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10939 states. [2021-12-28 03:40:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10939 to 10805. [2021-12-28 03:40:08,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10805 states, 8137 states have (on average 1.5363155954282905) internal successors, (12501), 8150 states have internal predecessors, (12501), 2559 states have call successors, (2559), 107 states have call predecessors, (2559), 108 states have return successors, (2642), 2551 states have call predecessors, (2642), 2552 states have call successors, (2642) [2021-12-28 03:40:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10805 states to 10805 states and 17702 transitions. [2021-12-28 03:40:08,815 INFO L78 Accepts]: Start accepts. Automaton has 10805 states and 17702 transitions. Word has length 69 [2021-12-28 03:40:08,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:40:08,816 INFO L470 AbstractCegarLoop]: Abstraction has 10805 states and 17702 transitions. [2021-12-28 03:40:08,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 03:40:08,816 INFO L276 IsEmpty]: Start isEmpty. Operand 10805 states and 17702 transitions. [2021-12-28 03:40:08,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-28 03:40:08,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:40:08,824 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] [2021-12-28 03:40:08,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 03:40:08,825 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:40:08,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:40:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash 122332334, now seen corresponding path program 1 times [2021-12-28 03:40:08,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:40:08,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985852548] [2021-12-28 03:40:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:40:08,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:40:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:40:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 03:40:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 03:40:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:40:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 03:40:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 03:40:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 03:40:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:40:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-28 03:40:10,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:40:10,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985852548] [2021-12-28 03:40:10,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985852548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:40:10,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:40:10,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 03:40:10,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86327364] [2021-12-28 03:40:10,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:40:10,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 03:40:10,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:40:10,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 03:40:10,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-28 03:40:10,022 INFO L87 Difference]: Start difference. First operand 10805 states and 17702 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-12-28 03:40:24,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-28 03:40:26,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:40:28,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []