./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.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 b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 13:23:27,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 13:23:27,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 13:23:27,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 13:23:27,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 13:23:27,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 13:23:27,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 13:23:27,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 13:23:27,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 13:23:27,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 13:23:27,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 13:23:27,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 13:23:27,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 13:23:27,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 13:23:27,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 13:23:27,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 13:23:27,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 13:23:27,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 13:23:27,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 13:23:27,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 13:23:27,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 13:23:27,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 13:23:27,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 13:23:27,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 13:23:27,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 13:23:27,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 13:23:27,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 13:23:27,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 13:23:27,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 13:23:27,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 13:23:27,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 13:23:27,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 13:23:27,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 13:23:27,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 13:23:27,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 13:23:27,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 13:23:27,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 13:23:27,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 13:23:27,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 13:23:27,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 13:23:27,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 13:23:27,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 13:23:27,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 13:23:27,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 13:23:27,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 13:23:27,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 13:23:27,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 13:23:27,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 13:23:27,871 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 13:23:27,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 13:23:27,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 13:23:27,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 13:23:27,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 13:23:27,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 13:23:27,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 13:23:27,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 13:23:27,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:23:27,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 13:23:27,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 13:23:27,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 13:23:27,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 13:23:27,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b84718ab53315b4fb0ea63ba4ff58d4e41800b214902f4639c5f6698ca2778b0 [2021-11-07 13:23:28,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 13:23:28,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 13:23:28,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 13:23:28,089 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 13:23:28,090 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 13:23:28,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-11-07 13:23:28,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53a5cb0e1/a73c2b76d00c42b180f574ac7b2efc3b/FLAG14c667a68 [2021-11-07 13:23:28,619 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 13:23:28,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-11-07 13:23:28,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53a5cb0e1/a73c2b76d00c42b180f574ac7b2efc3b/FLAG14c667a68 [2021-11-07 13:23:28,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53a5cb0e1/a73c2b76d00c42b180f574ac7b2efc3b [2021-11-07 13:23:28,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 13:23:28,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 13:23:28,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 13:23:28,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 13:23:28,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 13:23:28,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:28" (1/1) ... [2021-11-07 13:23:28,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fe5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:28, skipping insertion in model container [2021-11-07 13:23:28,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:23:28" (1/1) ... [2021-11-07 13:23:28,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 13:23:28,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 13:23:29,151 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-11-07 13:23:29,152 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1725-1726] [2021-11-07 13:23:29,244 WARN L228 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i[57371,57384] [2021-11-07 13:23:29,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:23:29,804 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 13:23:29,833 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1724] [2021-11-07 13:23:29,834 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1725-1726] [2021-11-07 13:23:29,853 WARN L228 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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i[57371,57384] [2021-11-07 13:23:30,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 13:23:30,079 INFO L208 MainTranslator]: Completed translation [2021-11-07 13:23:30,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30 WrapperNode [2021-11-07 13:23:30,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 13:23:30,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 13:23:30,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 13:23:30,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 13:23:30,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:30,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:32,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 13:23:32,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 13:23:32,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 13:23:32,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 13:23:32,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:32,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:33,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:33,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:34,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:34,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:34,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:35,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 13:23:35,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 13:23:35,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 13:23:35,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 13:23:35,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (1/1) ... [2021-11-07 13:23:35,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 13:23:35,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 13:23:35,209 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) [2021-11-07 13:23:35,424 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 [2021-11-07 13:23:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 13:23:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:23:35,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure pch_vbus_gpio_work_fall [2021-11-07 13:23:35,447 INFO L138 BoogieDeclarations]: Found implementation of procedure pch_vbus_gpio_work_fall [2021-11-07 13:23:35,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 13:23:35,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 13:23:35,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 13:24:32,976 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 13:24:32,976 INFO L299 CfgBuilder]: Removed 25657 assume(true) statements. [2021-11-07 13:24:32,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:32 BoogieIcfgContainer [2021-11-07 13:24:32,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 13:24:32,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 13:24:32,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 13:24:32,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 13:24:32,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:23:28" (1/3) ... [2021-11-07 13:24:32,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c33c562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:32, skipping insertion in model container [2021-11-07 13:24:32,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:23:30" (2/3) ... [2021-11-07 13:24:32,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c33c562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:24:32, skipping insertion in model container [2021-11-07 13:24:32,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:24:32" (3/3) ... [2021-11-07 13:24:32,993 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--gadget--pch_udc.ko-entry_point.cil.out.i [2021-11-07 13:24:32,997 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 13:24:32,997 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-07 13:24:33,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 13:24:33,070 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 13:24:33,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-07 13:24:33,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 16354 states, 16279 states have (on average 1.3000798574851036) internal successors, (21164), 16336 states have internal predecessors, (21164), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-07 13:24:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 13:24:33,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:33,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:24:33,236 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1183988152, now seen corresponding path program 1 times [2021-11-07 13:24:33,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:33,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886093754] [2021-11-07 13:24:33,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:33,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:24:33,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:33,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886093754] [2021-11-07 13:24:33,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886093754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:33,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:33,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:24:33,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134154576] [2021-11-07 13:24:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:33,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:33,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:33,774 INFO L87 Difference]: Start difference. First operand has 16354 states, 16279 states have (on average 1.3000798574851036) internal successors, (21164), 16336 states have internal predecessors, (21164), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:34,576 INFO L93 Difference]: Finished difference Result 48047 states and 62272 transitions. [2021-11-07 13:24:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:34,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 13:24:34,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:34,718 INFO L225 Difference]: With dead ends: 48047 [2021-11-07 13:24:34,719 INFO L226 Difference]: Without dead ends: 31308 [2021-11-07 13:24:34,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:34,775 INFO L933 BasicCegarLoop]: 20689 mSDtfsCounter, 19895 mSDsluCounter, 20623 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19895 SdHoareTripleChecker+Valid, 41312 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.22ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.82ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:34,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19895 Valid, 41312 Invalid, 29 Unknown, 0 Unchecked, 82.22ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 85.82ms Time] [2021-11-07 13:24:35,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31308 states. [2021-11-07 13:24:35,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31308 to 31193. [2021-11-07 13:24:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31193 states, 31101 states have (on average 1.2749429278801325) internal successors, (39652), 31158 states have internal predecessors, (39652), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-07 13:24:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31193 states to 31193 states and 39716 transitions. [2021-11-07 13:24:35,876 INFO L78 Accepts]: Start accepts. Automaton has 31193 states and 39716 transitions. Word has length 23 [2021-11-07 13:24:35,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:35,876 INFO L470 AbstractCegarLoop]: Abstraction has 31193 states and 39716 transitions. [2021-11-07 13:24:35,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 31193 states and 39716 transitions. [2021-11-07 13:24:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 13:24:35,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:35,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:24:35,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 13:24:35,884 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:35,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:35,886 INFO L85 PathProgramCache]: Analyzing trace with hash 696380445, now seen corresponding path program 1 times [2021-11-07 13:24:35,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:35,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132643121] [2021-11-07 13:24:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:35,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:24:36,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:36,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132643121] [2021-11-07 13:24:36,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132643121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:36,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:36,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:24:36,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953228478] [2021-11-07 13:24:36,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:36,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:36,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:36,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:36,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:36,032 INFO L87 Difference]: Start difference. First operand 31193 states and 39716 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:37,129 INFO L93 Difference]: Finished difference Result 91959 states and 117028 transitions. [2021-11-07 13:24:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:37,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 13:24:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:37,294 INFO L225 Difference]: With dead ends: 91959 [2021-11-07 13:24:37,294 INFO L226 Difference]: Without dead ends: 60785 [2021-11-07 13:24:37,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:37,354 INFO L933 BasicCegarLoop]: 21037 mSDtfsCounter, 19232 mSDsluCounter, 20228 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19232 SdHoareTripleChecker+Valid, 41265 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.49ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:37,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19232 Valid, 41265 Invalid, 32 Unknown, 0 Unchecked, 45.47ms Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 63.49ms Time] [2021-11-07 13:24:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60785 states. [2021-11-07 13:24:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60785 to 60664. [2021-11-07 13:24:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60664 states, 60536 states have (on average 1.274183956653892) internal successors, (77134), 60595 states have internal predecessors, (77134), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:38,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60664 states to 60664 states and 77262 transitions. [2021-11-07 13:24:38,675 INFO L78 Accepts]: Start accepts. Automaton has 60664 states and 77262 transitions. Word has length 23 [2021-11-07 13:24:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:38,676 INFO L470 AbstractCegarLoop]: Abstraction has 60664 states and 77262 transitions. [2021-11-07 13:24:38,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:38,677 INFO L276 IsEmpty]: Start isEmpty. Operand 60664 states and 77262 transitions. [2021-11-07 13:24:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 13:24:38,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:38,685 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 13:24:38,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 13:24:38,685 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1619446590, now seen corresponding path program 1 times [2021-11-07 13:24:38,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:38,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228632671] [2021-11-07 13:24:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:38,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:39,014 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 13:24:39,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:39,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228632671] [2021-11-07 13:24:39,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228632671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:39,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:39,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 13:24:39,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709795535] [2021-11-07 13:24:39,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:39,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:39,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:39,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:39,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:39,017 INFO L87 Difference]: Start difference. First operand 60664 states and 77262 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:39,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:39,973 INFO L93 Difference]: Finished difference Result 63939 states and 81512 transitions. [2021-11-07 13:24:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:39,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-07 13:24:39,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:40,187 INFO L225 Difference]: With dead ends: 63939 [2021-11-07 13:24:40,188 INFO L226 Difference]: Without dead ends: 63831 [2021-11-07 13:24:40,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:40,213 INFO L933 BasicCegarLoop]: 20132 mSDtfsCounter, 8047 mSDsluCounter, 13407 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8047 SdHoareTripleChecker+Valid, 33539 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.21ms SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 282.12ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:40,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8047 Valid, 33539 Invalid, 317 Unknown, 0 Unchecked, 26.21ms Time], IncrementalHoareTripleChecker [151 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 282.12ms Time] [2021-11-07 13:24:40,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63831 states. [2021-11-07 13:24:41,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63831 to 63831. [2021-11-07 13:24:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63831 states, 63751 states have (on average 1.2725447443961664) internal successors, (81126), 63762 states have internal predecessors, (81126), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63831 states to 63831 states and 81254 transitions. [2021-11-07 13:24:41,416 INFO L78 Accepts]: Start accepts. Automaton has 63831 states and 81254 transitions. Word has length 47 [2021-11-07 13:24:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:41,416 INFO L470 AbstractCegarLoop]: Abstraction has 63831 states and 81254 transitions. [2021-11-07 13:24:41,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:41,417 INFO L276 IsEmpty]: Start isEmpty. Operand 63831 states and 81254 transitions. [2021-11-07 13:24:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 13:24:41,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:41,429 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:41,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 13:24:41,430 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 227871648, now seen corresponding path program 1 times [2021-11-07 13:24:41,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:41,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13378742] [2021-11-07 13:24:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:41,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:24:41,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:41,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13378742] [2021-11-07 13:24:41,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13378742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:41,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:41,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:24:41,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866791524] [2021-11-07 13:24:41,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:41,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:41,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:41,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:41,580 INFO L87 Difference]: Start difference. First operand 63831 states and 81254 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:42,860 INFO L93 Difference]: Finished difference Result 127647 states and 162492 transitions. [2021-11-07 13:24:42,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:42,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-07 13:24:42,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:43,027 INFO L225 Difference]: With dead ends: 127647 [2021-11-07 13:24:43,027 INFO L226 Difference]: Without dead ends: 63835 [2021-11-07 13:24:43,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:43,129 INFO L933 BasicCegarLoop]: 20185 mSDtfsCounter, 0 mSDsluCounter, 20180 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40365 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.25ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.89ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:43,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40365 Invalid, 6 Unknown, 0 Unchecked, 32.25ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 9.89ms Time] [2021-11-07 13:24:43,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63835 states. [2021-11-07 13:24:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63835 to 63835. [2021-11-07 13:24:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63835 states, 63755 states have (on average 1.2725276448905969) internal successors, (81130), 63766 states have internal predecessors, (81130), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63835 states to 63835 states and 81258 transitions. [2021-11-07 13:24:44,463 INFO L78 Accepts]: Start accepts. Automaton has 63835 states and 81258 transitions. Word has length 59 [2021-11-07 13:24:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:44,464 INFO L470 AbstractCegarLoop]: Abstraction has 63835 states and 81258 transitions. [2021-11-07 13:24:44,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:44,465 INFO L276 IsEmpty]: Start isEmpty. Operand 63835 states and 81258 transitions. [2021-11-07 13:24:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 13:24:44,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:44,477 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:44,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 13:24:44,478 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash -783245602, now seen corresponding path program 1 times [2021-11-07 13:24:44,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:44,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288975581] [2021-11-07 13:24:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:44,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:44,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:24:44,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:44,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288975581] [2021-11-07 13:24:44,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288975581] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:44,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:44,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:24:44,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153104653] [2021-11-07 13:24:44,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:44,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:44,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:44,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:44,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:44,608 INFO L87 Difference]: Start difference. First operand 63835 states and 81258 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:45,966 INFO L93 Difference]: Finished difference Result 127655 states and 162500 transitions. [2021-11-07 13:24:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:45,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-07 13:24:45,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:46,095 INFO L225 Difference]: With dead ends: 127655 [2021-11-07 13:24:46,096 INFO L226 Difference]: Without dead ends: 63839 [2021-11-07 13:24:46,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:46,201 INFO L933 BasicCegarLoop]: 20185 mSDtfsCounter, 0 mSDsluCounter, 20180 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40365 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.62ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.95ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:46,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40365 Invalid, 6 Unknown, 0 Unchecked, 25.62ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 6.95ms Time] [2021-11-07 13:24:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63839 states. [2021-11-07 13:24:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63839 to 63839. [2021-11-07 13:24:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63839 states, 63759 states have (on average 1.2725105475305447) internal successors, (81134), 63770 states have internal predecessors, (81134), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63839 states to 63839 states and 81262 transitions. [2021-11-07 13:24:47,479 INFO L78 Accepts]: Start accepts. Automaton has 63839 states and 81262 transitions. Word has length 59 [2021-11-07 13:24:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:47,482 INFO L470 AbstractCegarLoop]: Abstraction has 63839 states and 81262 transitions. [2021-11-07 13:24:47,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:47,483 INFO L276 IsEmpty]: Start isEmpty. Operand 63839 states and 81262 transitions. [2021-11-07 13:24:47,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 13:24:47,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:47,499 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:47,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 13:24:47,500 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:47,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:47,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1592592228, now seen corresponding path program 1 times [2021-11-07 13:24:47,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:47,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264896770] [2021-11-07 13:24:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:47,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:24:47,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:47,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264896770] [2021-11-07 13:24:47,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264896770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:47,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:47,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 13:24:47,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813638254] [2021-11-07 13:24:47,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:47,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 13:24:47,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:47,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 13:24:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:47,643 INFO L87 Difference]: Start difference. First operand 63839 states and 81262 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:48,821 INFO L93 Difference]: Finished difference Result 127661 states and 162504 transitions. [2021-11-07 13:24:48,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 13:24:48,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-07 13:24:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:48,951 INFO L225 Difference]: With dead ends: 127661 [2021-11-07 13:24:48,951 INFO L226 Difference]: Without dead ends: 63841 [2021-11-07 13:24:49,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 13:24:49,045 INFO L933 BasicCegarLoop]: 20185 mSDtfsCounter, 0 mSDsluCounter, 20179 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40364 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.88ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:49,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40364 Invalid, 7 Unknown, 0 Unchecked, 21.92ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 8.88ms Time] [2021-11-07 13:24:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63841 states. [2021-11-07 13:24:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63841 to 63841. [2021-11-07 13:24:50,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63841 states, 63761 states have (on average 1.2725019996549616) internal successors, (81136), 63772 states have internal predecessors, (81136), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:50,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63841 states to 63841 states and 81264 transitions. [2021-11-07 13:24:50,220 INFO L78 Accepts]: Start accepts. Automaton has 63841 states and 81264 transitions. Word has length 59 [2021-11-07 13:24:50,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:50,220 INFO L470 AbstractCegarLoop]: Abstraction has 63841 states and 81264 transitions. [2021-11-07 13:24:50,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:50,221 INFO L276 IsEmpty]: Start isEmpty. Operand 63841 states and 81264 transitions. [2021-11-07 13:24:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 13:24:50,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:50,233 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:50,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 13:24:50,233 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:50,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:50,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1243341673, now seen corresponding path program 1 times [2021-11-07 13:24:50,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:50,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318086709] [2021-11-07 13:24:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:50,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 13:24:50,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:50,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318086709] [2021-11-07 13:24:50,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318086709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:50,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:50,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 13:24:50,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087116003] [2021-11-07 13:24:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:50,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 13:24:50,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:50,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 13:24:50,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 13:24:50,339 INFO L87 Difference]: Start difference. First operand 63841 states and 81264 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:51,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:51,537 INFO L93 Difference]: Finished difference Result 127675 states and 162520 transitions. [2021-11-07 13:24:51,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 13:24:51,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-07 13:24:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:51,661 INFO L225 Difference]: With dead ends: 127675 [2021-11-07 13:24:51,661 INFO L226 Difference]: Without dead ends: 63853 [2021-11-07 13:24:51,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:24:51,760 INFO L933 BasicCegarLoop]: 20183 mSDtfsCounter, 3 mSDsluCounter, 40360 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 60543 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.64ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:51,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 60543 Invalid, 14 Unknown, 0 Unchecked, 46.98ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 10.64ms Time] [2021-11-07 13:24:51,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63853 states. [2021-11-07 13:24:52,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63853 to 63849. [2021-11-07 13:24:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63849 states, 63769 states have (on average 1.2724678135144036) internal successors, (81144), 63780 states have internal predecessors, (81144), 64 states have call successors, (64), 8 states have call predecessors, (64), 8 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2021-11-07 13:24:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63849 states to 63849 states and 81272 transitions. [2021-11-07 13:24:52,962 INFO L78 Accepts]: Start accepts. Automaton has 63849 states and 81272 transitions. Word has length 61 [2021-11-07 13:24:52,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:52,962 INFO L470 AbstractCegarLoop]: Abstraction has 63849 states and 81272 transitions. [2021-11-07 13:24:52,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:52,963 INFO L276 IsEmpty]: Start isEmpty. Operand 63849 states and 81272 transitions. [2021-11-07 13:24:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-07 13:24:53,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:53,154 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:53,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 13:24:53,155 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:53,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1057480917, now seen corresponding path program 1 times [2021-11-07 13:24:53,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:53,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180219787] [2021-11-07 13:24:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:53,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:24:53,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:53,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180219787] [2021-11-07 13:24:53,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180219787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:53,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:53,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:24:53,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539924140] [2021-11-07 13:24:53,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:53,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:24:53,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:53,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:24:53,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:24:53,496 INFO L87 Difference]: Start difference. First operand 63849 states and 81272 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:56,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 13:24:56,688 INFO L93 Difference]: Finished difference Result 205450 states and 261460 transitions. [2021-11-07 13:24:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 13:24:56,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-07 13:24:56,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 13:24:56,983 INFO L225 Difference]: With dead ends: 205450 [2021-11-07 13:24:56,984 INFO L226 Difference]: Without dead ends: 141620 [2021-11-07 13:24:57,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.91ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 13:24:57,075 INFO L933 BasicCegarLoop]: 20210 mSDtfsCounter, 57011 mSDsluCounter, 60523 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57011 SdHoareTripleChecker+Valid, 80733 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 284.47ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 189.71ms IncrementalHoareTripleChecker+Time [2021-11-07 13:24:57,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57011 Valid, 80733 Invalid, 141 Unknown, 0 Unchecked, 284.47ms Time], IncrementalHoareTripleChecker [43 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 189.71ms Time] [2021-11-07 13:24:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141620 states. [2021-11-07 13:24:59,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141620 to 95905. [2021-11-07 13:24:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95905 states, 95789 states have (on average 1.2728183820689223) internal successors, (121922), 95802 states have internal predecessors, (121922), 96 states have call successors, (96), 12 states have call predecessors, (96), 12 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2021-11-07 13:24:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95905 states to 95905 states and 122114 transitions. [2021-11-07 13:24:59,557 INFO L78 Accepts]: Start accepts. Automaton has 95905 states and 122114 transitions. Word has length 61 [2021-11-07 13:24:59,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 13:24:59,557 INFO L470 AbstractCegarLoop]: Abstraction has 95905 states and 122114 transitions. [2021-11-07 13:24:59,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 13:24:59,558 INFO L276 IsEmpty]: Start isEmpty. Operand 95905 states and 122114 transitions. [2021-11-07 13:24:59,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 13:24:59,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 13:24:59,573 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 13:24:59,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 13:24:59,573 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-07 13:24:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 13:24:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1138607686, now seen corresponding path program 1 times [2021-11-07 13:24:59,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 13:24:59,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170372790] [2021-11-07 13:24:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 13:24:59,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 13:24:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 13:24:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 13:24:59,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 13:24:59,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170372790] [2021-11-07 13:24:59,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170372790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 13:24:59,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 13:24:59,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 13:24:59,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075417605] [2021-11-07 13:24:59,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 13:24:59,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 13:24:59,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 13:24:59,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 13:24:59,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 13:24:59,837 INFO L87 Difference]: Start difference. First operand 95905 states and 122114 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)