./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.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 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:41:29,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:41:29,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:41:29,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:41:29,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:41:29,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:41:29,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:41:29,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:41:29,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:41:29,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:41:29,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:41:29,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:41:29,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:41:29,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:41:29,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:41:29,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:41:29,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:41:29,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:41:29,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:41:29,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:41:29,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:41:29,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:41:29,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:41:29,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:41:29,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:41:29,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:41:29,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:41:29,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:41:29,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:41:29,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:41:29,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:41:29,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:41:29,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:41:29,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:41:29,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:41:29,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:41:29,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:41:29,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:41:29,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:41:29,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:41:29,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:41:29,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:41:29,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:41:29,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:41:29,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:41:29,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:41:29,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:41:29,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:41:29,871 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:41:29,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:41:29,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:41:29,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:41:29,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:41:29,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:41:29,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:41:29,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:41:29,872 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:41:29,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:41:29,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:41:29,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:41:29,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:41:29,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:41:29,874 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:41:29,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:41:29,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:41:29,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:41:29,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5afcd851c0eed3ee93d773a0172936a989a39cd6889ca2587c3b833a21bc8a3a [2021-11-07 19:41:30,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:41:30,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:41:30,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:41:30,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:41:30,107 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:41:30,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-07 19:41:30,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a8dd40c/ea4a5683813145e0949a3975945ae98e/FLAG192aaf309 [2021-11-07 19:41:30,822 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:41:30,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-07 19:41:30,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a8dd40c/ea4a5683813145e0949a3975945ae98e/FLAG192aaf309 [2021-11-07 19:41:31,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68a8dd40c/ea4a5683813145e0949a3975945ae98e [2021-11-07 19:41:31,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:41:31,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:41:31,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:41:31,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:41:31,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:41:31,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:41:31" (1/1) ... [2021-11-07 19:41:31,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479af81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:31, skipping insertion in model container [2021-11-07 19:41:31,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:41:31" (1/1) ... [2021-11-07 19:41:31,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:41:31,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:41:33,158 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-11-07 19:41:33,160 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-11-07 19:41:33,161 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-11-07 19:41:33,161 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-11-07 19:41:33,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:41:33,234 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:41:33,533 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410165,410178] [2021-11-07 19:41:33,534 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410334,410347] [2021-11-07 19:41:33,535 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410501,410514] [2021-11-07 19:41:33,535 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[410669,410682] [2021-11-07 19:41:33,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:41:33,705 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:41:33,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33 WrapperNode [2021-11-07 19:41:33,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:41:33,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:41:33,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:41:33,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:41:33,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:33,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:35,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:41:35,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:41:35,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:41:35,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:41:35,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:35,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:36,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:36,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:37,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:37,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:37,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:37,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:41:37,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:41:37,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:41:37,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:41:37,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (1/1) ... [2021-11-07 19:41:37,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:41:37,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:41:37,776 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 19:41:37,781 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 19:41:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:41:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:41:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:41:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:41:37,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 19:41:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:41:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:41:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:41:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:41:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:42:17,697 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-07 19:42:17,699 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: #t~ret2343 := main_#res; [2021-11-07 19:42:17,701 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:42:17,701 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_16_returnLabel: main_#res := 0; [2021-11-07 19:42:17,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:42:17,747 INFO L299 CfgBuilder]: Removed 22860 assume(true) statements. [2021-11-07 19:42:17,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:42:17 BoogieIcfgContainer [2021-11-07 19:42:17,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:42:17,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:42:17,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:42:17,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:42:17,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:41:31" (1/3) ... [2021-11-07 19:42:17,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59535d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:42:17, skipping insertion in model container [2021-11-07 19:42:17,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:41:33" (2/3) ... [2021-11-07 19:42:17,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59535d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:42:17, skipping insertion in model container [2021-11-07 19:42:17,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:42:17" (3/3) ... [2021-11-07 19:42:17,763 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-07 19:42:17,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:42:17,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 167 error locations. [2021-11-07 19:42:17,834 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:42:17,839 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 19:42:17,839 INFO L340 AbstractCegarLoop]: Starting to check reachability of 167 error locations. [2021-11-07 19:42:17,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 14754 states, 14587 states have (on average 1.3150065126482484) internal successors, (19182), 14753 states have internal predecessors, (19182), 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 19:42:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 19:42:17,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:17,976 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:17,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr137ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:17,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:17,980 INFO L85 PathProgramCache]: Analyzing trace with hash -766795825, now seen corresponding path program 1 times [2021-11-07 19:42:17,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:17,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110800037] [2021-11-07 19:42:17,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:17,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:18,417 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 19:42:18,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:18,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110800037] [2021-11-07 19:42:18,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110800037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:18,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:18,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 19:42:18,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181361590] [2021-11-07 19:42:18,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:18,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:42:18,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:18,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:42:18,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:42:18,480 INFO L87 Difference]: Start difference. First operand has 14754 states, 14587 states have (on average 1.3150065126482484) internal successors, (19182), 14753 states have internal predecessors, (19182), 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) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:42:21,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:42:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:21,963 INFO L93 Difference]: Finished difference Result 43908 states and 57028 transitions. [2021-11-07 19:42:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:42:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 19:42:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:22,067 INFO L225 Difference]: With dead ends: 43908 [2021-11-07 19:42:22,067 INFO L226 Difference]: Without dead ends: 28437 [2021-11-07 19:42:22,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:42:22,097 INFO L933 BasicCegarLoop]: 18701 mSDtfsCounter, 18639 mSDsluCounter, 18644 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2625.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18639 SdHoareTripleChecker+Valid, 37345 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2731.05ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:22,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18639 Valid, 37345 Invalid, 39 Unknown, 0 Unchecked, 75.51ms Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 2731.05ms Time] [2021-11-07 19:42:22,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28437 states. [2021-11-07 19:42:22,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28437 to 27687. [2021-11-07 19:42:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27687 states, 27520 states have (on average 1.2759447674418605) internal successors, (35114), 27686 states have internal predecessors, (35114), 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 19:42:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27687 states to 27687 states and 35114 transitions. [2021-11-07 19:42:22,826 INFO L78 Accepts]: Start accepts. Automaton has 27687 states and 35114 transitions. Word has length 31 [2021-11-07 19:42:22,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:22,827 INFO L470 AbstractCegarLoop]: Abstraction has 27687 states and 35114 transitions. [2021-11-07 19:42:22,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:42:22,827 INFO L276 IsEmpty]: Start isEmpty. Operand 27687 states and 35114 transitions. [2021-11-07 19:42:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 19:42:22,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:22,830 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:22,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:42:22,830 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr137ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:22,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2046659503, now seen corresponding path program 1 times [2021-11-07 19:42:22,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:22,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14423156] [2021-11-07 19:42:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:22,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:23,039 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 19:42:23,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:23,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14423156] [2021-11-07 19:42:23,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14423156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:23,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:23,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:23,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240817446] [2021-11-07 19:42:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:23,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:23,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:23,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:23,046 INFO L87 Difference]: Start difference. First operand 27687 states and 35114 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:42:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:23,706 INFO L93 Difference]: Finished difference Result 27687 states and 35114 transitions. [2021-11-07 19:42:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:23,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-07 19:42:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:23,763 INFO L225 Difference]: With dead ends: 27687 [2021-11-07 19:42:23,764 INFO L226 Difference]: Without dead ends: 27683 [2021-11-07 19:42:23,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:23,780 INFO L933 BasicCegarLoop]: 17936 mSDtfsCounter, 17850 mSDsluCounter, 17922 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17850 SdHoareTripleChecker+Valid, 35858 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.09ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.09ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:23,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17850 Valid, 35858 Invalid, 108 Unknown, 0 Unchecked, 40.09ms Time], IncrementalHoareTripleChecker [28 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 162.09ms Time] [2021-11-07 19:42:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27683 states. [2021-11-07 19:42:24,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27683 to 27683. [2021-11-07 19:42:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27683 states, 27518 states have (on average 1.2758921433243695) internal successors, (35110), 27682 states have internal predecessors, (35110), 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 19:42:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27683 states to 27683 states and 35110 transitions. [2021-11-07 19:42:24,404 INFO L78 Accepts]: Start accepts. Automaton has 27683 states and 35110 transitions. Word has length 31 [2021-11-07 19:42:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:24,405 INFO L470 AbstractCegarLoop]: Abstraction has 27683 states and 35110 transitions. [2021-11-07 19:42:24,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:42:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27683 states and 35110 transitions. [2021-11-07 19:42:24,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 19:42:24,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:24,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:24,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:42:24,407 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr138ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:24,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash 256812884, now seen corresponding path program 1 times [2021-11-07 19:42:24,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:24,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515733203] [2021-11-07 19:42:24,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:24,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:24,667 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 19:42:24,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:24,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515733203] [2021-11-07 19:42:24,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515733203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:24,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:24,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:24,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115686943] [2021-11-07 19:42:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:24,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:24,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:24,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:24,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:24,670 INFO L87 Difference]: Start difference. First operand 27683 states and 35110 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 19:42:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:25,232 INFO L93 Difference]: Finished difference Result 27683 states and 35110 transitions. [2021-11-07 19:42:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:25,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-11-07 19:42:25,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:25,287 INFO L225 Difference]: With dead ends: 27683 [2021-11-07 19:42:25,287 INFO L226 Difference]: Without dead ends: 27679 [2021-11-07 19:42:25,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:25,301 INFO L933 BasicCegarLoop]: 17940 mSDtfsCounter, 17914 mSDsluCounter, 17872 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17914 SdHoareTripleChecker+Valid, 35812 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.99ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.45ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:25,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17914 Valid, 35812 Invalid, 76 Unknown, 0 Unchecked, 33.99ms Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 82.45ms Time] [2021-11-07 19:42:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27679 states. [2021-11-07 19:42:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27679 to 27679. [2021-11-07 19:42:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27679 states, 27516 states have (on average 1.2758395115569123) internal successors, (35106), 27678 states have internal predecessors, (35106), 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 19:42:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27679 states to 27679 states and 35106 transitions. [2021-11-07 19:42:25,931 INFO L78 Accepts]: Start accepts. Automaton has 27679 states and 35106 transitions. Word has length 33 [2021-11-07 19:42:25,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:25,932 INFO L470 AbstractCegarLoop]: Abstraction has 27679 states and 35106 transitions. [2021-11-07 19:42:25,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 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 19:42:25,932 INFO L276 IsEmpty]: Start isEmpty. Operand 27679 states and 35106 transitions. [2021-11-07 19:42:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 19:42:25,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:25,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:25,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:42:25,935 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr139ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:25,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1985619671, now seen corresponding path program 1 times [2021-11-07 19:42:25,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:25,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792073803] [2021-11-07 19:42:25,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:25,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:26,073 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 19:42:26,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:26,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792073803] [2021-11-07 19:42:26,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792073803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:26,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:26,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:26,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384487472] [2021-11-07 19:42:26,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:26,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:26,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:26,075 INFO L87 Difference]: Start difference. First operand 27679 states and 35106 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 19:42:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:26,590 INFO L93 Difference]: Finished difference Result 27679 states and 35106 transitions. [2021-11-07 19:42:26,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:26,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 35 [2021-11-07 19:42:26,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:26,648 INFO L225 Difference]: With dead ends: 27679 [2021-11-07 19:42:26,648 INFO L226 Difference]: Without dead ends: 27675 [2021-11-07 19:42:26,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:26,663 INFO L933 BasicCegarLoop]: 17936 mSDtfsCounter, 17908 mSDsluCounter, 17870 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17908 SdHoareTripleChecker+Valid, 35806 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.81ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.26ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:26,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17908 Valid, 35806 Invalid, 74 Unknown, 0 Unchecked, 31.81ms Time], IncrementalHoareTripleChecker [26 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 75.26ms Time] [2021-11-07 19:42:26,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27675 states. [2021-11-07 19:42:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27675 to 27675. [2021-11-07 19:42:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27675 states, 27514 states have (on average 1.2757868721378207) internal successors, (35102), 27674 states have internal predecessors, (35102), 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 19:42:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27675 states to 27675 states and 35102 transitions. [2021-11-07 19:42:27,292 INFO L78 Accepts]: Start accepts. Automaton has 27675 states and 35102 transitions. Word has length 35 [2021-11-07 19:42:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:27,293 INFO L470 AbstractCegarLoop]: Abstraction has 27675 states and 35102 transitions. [2021-11-07 19:42:27,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 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 19:42:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand 27675 states and 35102 transitions. [2021-11-07 19:42:27,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 19:42:27,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:27,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:27,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:42:27,295 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr140ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1216598746, now seen corresponding path program 1 times [2021-11-07 19:42:27,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:27,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267123647] [2021-11-07 19:42:27,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:27,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:27,448 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 19:42:27,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:27,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267123647] [2021-11-07 19:42:27,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267123647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:27,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:27,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:27,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101332547] [2021-11-07 19:42:27,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:27,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:27,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:27,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:27,450 INFO L87 Difference]: Start difference. First operand 27675 states and 35102 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 19:42:28,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:28,024 INFO L93 Difference]: Finished difference Result 27675 states and 35102 transitions. [2021-11-07 19:42:28,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:28,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2021-11-07 19:42:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:28,077 INFO L225 Difference]: With dead ends: 27675 [2021-11-07 19:42:28,077 INFO L226 Difference]: Without dead ends: 27671 [2021-11-07 19:42:28,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.85ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:28,091 INFO L933 BasicCegarLoop]: 17932 mSDtfsCounter, 17902 mSDsluCounter, 17868 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17902 SdHoareTripleChecker+Valid, 35800 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.06ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.18ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:28,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17902 Valid, 35800 Invalid, 72 Unknown, 0 Unchecked, 46.06ms Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 77.18ms Time] [2021-11-07 19:42:28,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27671 states. [2021-11-07 19:42:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27671 to 27671. [2021-11-07 19:42:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27671 states, 27512 states have (on average 1.275734225065426) internal successors, (35098), 27670 states have internal predecessors, (35098), 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 19:42:28,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27671 states to 27671 states and 35098 transitions. [2021-11-07 19:42:28,710 INFO L78 Accepts]: Start accepts. Automaton has 27671 states and 35098 transitions. Word has length 37 [2021-11-07 19:42:28,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:28,710 INFO L470 AbstractCegarLoop]: Abstraction has 27671 states and 35098 transitions. [2021-11-07 19:42:28,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 19:42:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 27671 states and 35098 transitions. [2021-11-07 19:42:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 19:42:28,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:28,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:28,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:42:28,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr141ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 921865053, now seen corresponding path program 1 times [2021-11-07 19:42:28,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:28,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185082408] [2021-11-07 19:42:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:28,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:28,847 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 19:42:28,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:28,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185082408] [2021-11-07 19:42:28,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185082408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:28,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:28,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:28,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86707202] [2021-11-07 19:42:28,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:28,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:28,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:28,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:28,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:28,849 INFO L87 Difference]: Start difference. First operand 27671 states and 35098 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 19:42:29,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:29,425 INFO L93 Difference]: Finished difference Result 27671 states and 35098 transitions. [2021-11-07 19:42:29,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:29,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-07 19:42:29,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:29,480 INFO L225 Difference]: With dead ends: 27671 [2021-11-07 19:42:29,480 INFO L226 Difference]: Without dead ends: 27667 [2021-11-07 19:42:29,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.70ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:29,493 INFO L933 BasicCegarLoop]: 17928 mSDtfsCounter, 17896 mSDsluCounter, 17866 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17896 SdHoareTripleChecker+Valid, 35794 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.98ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 76.23ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:29,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17896 Valid, 35794 Invalid, 70 Unknown, 0 Unchecked, 28.98ms Time], IncrementalHoareTripleChecker [26 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 76.23ms Time] [2021-11-07 19:42:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27667 states. [2021-11-07 19:42:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27667 to 27667. [2021-11-07 19:42:30,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27667 states, 27510 states have (on average 1.2756815703380588) internal successors, (35094), 27666 states have internal predecessors, (35094), 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 19:42:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27667 states to 27667 states and 35094 transitions. [2021-11-07 19:42:30,174 INFO L78 Accepts]: Start accepts. Automaton has 27667 states and 35094 transitions. Word has length 39 [2021-11-07 19:42:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:30,176 INFO L470 AbstractCegarLoop]: Abstraction has 27667 states and 35094 transitions. [2021-11-07 19:42:30,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 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 19:42:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 27667 states and 35094 transitions. [2021-11-07 19:42:30,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 19:42:30,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:30,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:30,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:42:30,177 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr142ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:30,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:30,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1150627936, now seen corresponding path program 1 times [2021-11-07 19:42:30,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:30,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094957930] [2021-11-07 19:42:30,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:30,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:30,310 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 19:42:30,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:30,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094957930] [2021-11-07 19:42:30,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094957930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:30,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:30,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:30,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037354059] [2021-11-07 19:42:30,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:30,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:30,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:30,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:30,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:30,312 INFO L87 Difference]: Start difference. First operand 27667 states and 35094 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 19:42:30,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:30,892 INFO L93 Difference]: Finished difference Result 27667 states and 35094 transitions. [2021-11-07 19:42:30,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2021-11-07 19:42:30,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:30,937 INFO L225 Difference]: With dead ends: 27667 [2021-11-07 19:42:30,937 INFO L226 Difference]: Without dead ends: 27663 [2021-11-07 19:42:30,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:30,950 INFO L933 BasicCegarLoop]: 17924 mSDtfsCounter, 17890 mSDsluCounter, 17864 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17890 SdHoareTripleChecker+Valid, 35788 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.62ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62.62ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:30,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17890 Valid, 35788 Invalid, 68 Unknown, 0 Unchecked, 26.62ms Time], IncrementalHoareTripleChecker [26 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 62.62ms Time] [2021-11-07 19:42:30,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27663 states. [2021-11-07 19:42:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27663 to 27663. [2021-11-07 19:42:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27663 states, 27508 states have (on average 1.2756289079540497) internal successors, (35090), 27662 states have internal predecessors, (35090), 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 19:42:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27663 states to 27663 states and 35090 transitions. [2021-11-07 19:42:31,802 INFO L78 Accepts]: Start accepts. Automaton has 27663 states and 35090 transitions. Word has length 41 [2021-11-07 19:42:31,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:31,802 INFO L470 AbstractCegarLoop]: Abstraction has 27663 states and 35090 transitions. [2021-11-07 19:42:31,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 19:42:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 27663 states and 35090 transitions. [2021-11-07 19:42:31,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-07 19:42:31,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:31,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:42:31,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 19:42:31,805 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr143ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:31,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1948426723, now seen corresponding path program 1 times [2021-11-07 19:42:31,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:31,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413757997] [2021-11-07 19:42:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:31,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:31,973 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 19:42:31,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:31,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413757997] [2021-11-07 19:42:31,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413757997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:31,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:31,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:31,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136873352] [2021-11-07 19:42:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:31,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:31,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:31,976 INFO L87 Difference]: Start difference. First operand 27663 states and 35090 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 19:42:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:32,700 INFO L93 Difference]: Finished difference Result 27663 states and 35090 transitions. [2021-11-07 19:42:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-07 19:42:32,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:32,749 INFO L225 Difference]: With dead ends: 27663 [2021-11-07 19:42:32,753 INFO L226 Difference]: Without dead ends: 27659 [2021-11-07 19:42:32,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:32,766 INFO L933 BasicCegarLoop]: 17920 mSDtfsCounter, 17884 mSDsluCounter, 17862 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17884 SdHoareTripleChecker+Valid, 35782 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.94ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.57ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:32,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17884 Valid, 35782 Invalid, 66 Unknown, 0 Unchecked, 27.94ms Time], IncrementalHoareTripleChecker [26 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 96.57ms Time] [2021-11-07 19:42:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27659 states. [2021-11-07 19:42:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27659 to 27659. [2021-11-07 19:42:33,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27659 states, 27506 states have (on average 1.2755762379117284) internal successors, (35086), 27658 states have internal predecessors, (35086), 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 19:42:33,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27659 states to 27659 states and 35086 transitions. [2021-11-07 19:42:33,526 INFO L78 Accepts]: Start accepts. Automaton has 27659 states and 35086 transitions. Word has length 43 [2021-11-07 19:42:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:33,526 INFO L470 AbstractCegarLoop]: Abstraction has 27659 states and 35086 transitions. [2021-11-07 19:42:33,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 19:42:33,527 INFO L276 IsEmpty]: Start isEmpty. Operand 27659 states and 35086 transitions. [2021-11-07 19:42:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 19:42:33,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:33,528 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, 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 19:42:33,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 19:42:33,528 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr144ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:33,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:33,528 INFO L85 PathProgramCache]: Analyzing trace with hash -166084634, now seen corresponding path program 1 times [2021-11-07 19:42:33,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:33,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063334950] [2021-11-07 19:42:33,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:33,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:33,638 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 19:42:33,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:33,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063334950] [2021-11-07 19:42:33,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063334950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:33,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:33,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:33,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429170973] [2021-11-07 19:42:33,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:33,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:33,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:33,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:33,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:33,641 INFO L87 Difference]: Start difference. First operand 27659 states and 35086 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 19:42:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:35,004 INFO L93 Difference]: Finished difference Result 27659 states and 35086 transitions. [2021-11-07 19:42:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 19:42:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:35,047 INFO L225 Difference]: With dead ends: 27659 [2021-11-07 19:42:35,048 INFO L226 Difference]: Without dead ends: 27655 [2021-11-07 19:42:35,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.06ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:35,062 INFO L933 BasicCegarLoop]: 17788 mSDtfsCounter, 4188 mSDsluCounter, 31151 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 767.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4188 SdHoareTripleChecker+Valid, 48939 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.24ms SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 863.85ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:35,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4188 Valid, 48939 Invalid, 591 Unknown, 0 Unchecked, 26.24ms Time], IncrementalHoareTripleChecker [95 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 863.85ms Time] [2021-11-07 19:42:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27655 states. [2021-11-07 19:42:35,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27655 to 27655. [2021-11-07 19:42:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27655 states, 27504 states have (on average 1.2755235602094241) internal successors, (35082), 27654 states have internal predecessors, (35082), 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 19:42:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27655 states to 27655 states and 35082 transitions. [2021-11-07 19:42:36,001 INFO L78 Accepts]: Start accepts. Automaton has 27655 states and 35082 transitions. Word has length 45 [2021-11-07 19:42:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:36,001 INFO L470 AbstractCegarLoop]: Abstraction has 27655 states and 35082 transitions. [2021-11-07 19:42:36,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 19:42:36,002 INFO L276 IsEmpty]: Start isEmpty. Operand 27655 states and 35082 transitions. [2021-11-07 19:42:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-07 19:42:36,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:36,003 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, 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 19:42:36,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 19:42:36,003 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr145ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:36,004 INFO L85 PathProgramCache]: Analyzing trace with hash -691967383, now seen corresponding path program 1 times [2021-11-07 19:42:36,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:36,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967969083] [2021-11-07 19:42:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:36,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:36,160 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 19:42:36,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:36,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967969083] [2021-11-07 19:42:36,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967969083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:36,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:36,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:36,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285850029] [2021-11-07 19:42:36,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:36,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:36,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:36,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:36,162 INFO L87 Difference]: Start difference. First operand 27655 states and 35082 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 19:42:36,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:36,879 INFO L93 Difference]: Finished difference Result 27655 states and 35082 transitions. [2021-11-07 19:42:36,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:36,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 19:42:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:36,923 INFO L225 Difference]: With dead ends: 27655 [2021-11-07 19:42:36,924 INFO L226 Difference]: Without dead ends: 27651 [2021-11-07 19:42:36,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:36,937 INFO L933 BasicCegarLoop]: 17912 mSDtfsCounter, 17872 mSDsluCounter, 17858 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17872 SdHoareTripleChecker+Valid, 35770 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.74ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.05ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:36,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17872 Valid, 35770 Invalid, 62 Unknown, 0 Unchecked, 27.74ms Time], IncrementalHoareTripleChecker [26 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 65.05ms Time] [2021-11-07 19:42:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27651 states. [2021-11-07 19:42:37,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27651 to 27651. [2021-11-07 19:42:37,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27651 states, 27502 states have (on average 1.2754708748454657) internal successors, (35078), 27650 states have internal predecessors, (35078), 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 19:42:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27651 states to 27651 states and 35078 transitions. [2021-11-07 19:42:37,716 INFO L78 Accepts]: Start accepts. Automaton has 27651 states and 35078 transitions. Word has length 47 [2021-11-07 19:42:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:37,716 INFO L470 AbstractCegarLoop]: Abstraction has 27651 states and 35078 transitions. [2021-11-07 19:42:37,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 19:42:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 27651 states and 35078 transitions. [2021-11-07 19:42:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 19:42:37,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:37,718 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, 1, 1, 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 19:42:37,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 19:42:37,719 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr146ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:37,720 INFO L85 PathProgramCache]: Analyzing trace with hash 740852076, now seen corresponding path program 1 times [2021-11-07 19:42:37,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:37,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174931050] [2021-11-07 19:42:37,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:37,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:37,852 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 19:42:37,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:37,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174931050] [2021-11-07 19:42:37,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174931050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:37,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:37,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:37,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706141636] [2021-11-07 19:42:37,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:37,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:37,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:37,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:37,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:37,855 INFO L87 Difference]: Start difference. First operand 27651 states and 35078 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 19:42:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:38,595 INFO L93 Difference]: Finished difference Result 27651 states and 35078 transitions. [2021-11-07 19:42:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:38,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-07 19:42:38,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:38,639 INFO L225 Difference]: With dead ends: 27651 [2021-11-07 19:42:38,640 INFO L226 Difference]: Without dead ends: 27647 [2021-11-07 19:42:38,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.42ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:38,653 INFO L933 BasicCegarLoop]: 17908 mSDtfsCounter, 17866 mSDsluCounter, 17856 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17866 SdHoareTripleChecker+Valid, 35764 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.77ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.69ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:38,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17866 Valid, 35764 Invalid, 60 Unknown, 0 Unchecked, 27.77ms Time], IncrementalHoareTripleChecker [26 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 95.69ms Time] [2021-11-07 19:42:38,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27647 states. [2021-11-07 19:42:39,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27647 to 27647. [2021-11-07 19:42:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27647 states, 27500 states have (on average 1.2754181818181818) internal successors, (35074), 27646 states have internal predecessors, (35074), 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 19:42:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27647 states to 27647 states and 35074 transitions. [2021-11-07 19:42:39,603 INFO L78 Accepts]: Start accepts. Automaton has 27647 states and 35074 transitions. Word has length 49 [2021-11-07 19:42:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:39,603 INFO L470 AbstractCegarLoop]: Abstraction has 27647 states and 35074 transitions. [2021-11-07 19:42:39,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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 19:42:39,604 INFO L276 IsEmpty]: Start isEmpty. Operand 27647 states and 35074 transitions. [2021-11-07 19:42:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 19:42:39,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:39,605 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, 1, 1, 1, 1, 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 19:42:39,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 19:42:39,606 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr147ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:39,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1004149521, now seen corresponding path program 1 times [2021-11-07 19:42:39,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:39,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374260596] [2021-11-07 19:42:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:39,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:39,720 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 19:42:39,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:39,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374260596] [2021-11-07 19:42:39,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374260596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:39,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:39,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:39,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460224066] [2021-11-07 19:42:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:39,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:39,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:39,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:39,723 INFO L87 Difference]: Start difference. First operand 27647 states and 35074 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 19:42:40,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:40,553 INFO L93 Difference]: Finished difference Result 27647 states and 35074 transitions. [2021-11-07 19:42:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:40,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2021-11-07 19:42:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:40,597 INFO L225 Difference]: With dead ends: 27647 [2021-11-07 19:42:40,597 INFO L226 Difference]: Without dead ends: 27643 [2021-11-07 19:42:40,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:40,609 INFO L933 BasicCegarLoop]: 17904 mSDtfsCounter, 17860 mSDsluCounter, 17854 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17860 SdHoareTripleChecker+Valid, 35758 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.76ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.65ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17860 Valid, 35758 Invalid, 58 Unknown, 0 Unchecked, 28.76ms Time], IncrementalHoareTripleChecker [26 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 55.65ms Time] [2021-11-07 19:42:40,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27643 states. [2021-11-07 19:42:41,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27643 to 27643. [2021-11-07 19:42:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27643 states, 27498 states have (on average 1.2753654811259) internal successors, (35070), 27642 states have internal predecessors, (35070), 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 19:42:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27643 states to 27643 states and 35070 transitions. [2021-11-07 19:42:41,470 INFO L78 Accepts]: Start accepts. Automaton has 27643 states and 35070 transitions. Word has length 51 [2021-11-07 19:42:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:41,470 INFO L470 AbstractCegarLoop]: Abstraction has 27643 states and 35070 transitions. [2021-11-07 19:42:41,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 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 19:42:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27643 states and 35070 transitions. [2021-11-07 19:42:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 19:42:41,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:41,472 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, 1, 1, 1, 1, 1, 1, 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 19:42:41,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 19:42:41,472 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr148ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1381528818, now seen corresponding path program 1 times [2021-11-07 19:42:41,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:41,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050035501] [2021-11-07 19:42:41,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:41,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:41,586 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 19:42:41,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:41,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050035501] [2021-11-07 19:42:41,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050035501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:41,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:41,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:41,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981295512] [2021-11-07 19:42:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:41,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:41,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:41,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:41,588 INFO L87 Difference]: Start difference. First operand 27643 states and 35070 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 19:42:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:42,361 INFO L93 Difference]: Finished difference Result 27643 states and 35070 transitions. [2021-11-07 19:42:42,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:42,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2021-11-07 19:42:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:42,401 INFO L225 Difference]: With dead ends: 27643 [2021-11-07 19:42:42,402 INFO L226 Difference]: Without dead ends: 27639 [2021-11-07 19:42:42,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:42,413 INFO L933 BasicCegarLoop]: 17900 mSDtfsCounter, 17854 mSDsluCounter, 17852 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17854 SdHoareTripleChecker+Valid, 35752 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.82ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.96ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:42,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17854 Valid, 35752 Invalid, 56 Unknown, 0 Unchecked, 27.82ms Time], IncrementalHoareTripleChecker [26 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 58.96ms Time] [2021-11-07 19:42:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27639 states. [2021-11-07 19:42:43,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27639 to 27639. [2021-11-07 19:42:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27639 states, 27496 states have (on average 1.275312772766948) internal successors, (35066), 27638 states have internal predecessors, (35066), 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 19:42:43,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27639 states to 27639 states and 35066 transitions. [2021-11-07 19:42:43,359 INFO L78 Accepts]: Start accepts. Automaton has 27639 states and 35066 transitions. Word has length 53 [2021-11-07 19:42:43,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:43,359 INFO L470 AbstractCegarLoop]: Abstraction has 27639 states and 35066 transitions. [2021-11-07 19:42:43,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 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 19:42:43,359 INFO L276 IsEmpty]: Start isEmpty. Operand 27639 states and 35066 transitions. [2021-11-07 19:42:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 19:42:43,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:43,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:43,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 19:42:43,361 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr150ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:43,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:43,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1964335015, now seen corresponding path program 1 times [2021-11-07 19:42:43,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:43,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820343787] [2021-11-07 19:42:43,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:43,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:43,483 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 19:42:43,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:43,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820343787] [2021-11-07 19:42:43,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820343787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:43,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:43,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:43,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820004045] [2021-11-07 19:42:43,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:43,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:43,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:43,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:43,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:43,485 INFO L87 Difference]: Start difference. First operand 27639 states and 35066 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 19:42:45,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:45,354 INFO L93 Difference]: Finished difference Result 32362 states and 41126 transitions. [2021-11-07 19:42:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 19:42:45,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2021-11-07 19:42:45,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:45,407 INFO L225 Difference]: With dead ends: 32362 [2021-11-07 19:42:45,407 INFO L226 Difference]: Without dead ends: 32234 [2021-11-07 19:42:45,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:45,420 INFO L933 BasicCegarLoop]: 20716 mSDtfsCounter, 21678 mSDsluCounter, 16593 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 652.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21678 SdHoareTripleChecker+Valid, 37309 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.22ms SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 765.89ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:45,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21678 Valid, 37309 Invalid, 675 Unknown, 0 Unchecked, 71.22ms Time], IncrementalHoareTripleChecker [211 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 765.89ms Time] [2021-11-07 19:42:45,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32234 states. [2021-11-07 19:42:46,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32234 to 27511. [2021-11-07 19:42:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27511 states, 27432 states have (on average 1.2713619130941967) internal successors, (34876), 27510 states have internal predecessors, (34876), 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 19:42:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27511 states to 27511 states and 34876 transitions. [2021-11-07 19:42:46,404 INFO L78 Accepts]: Start accepts. Automaton has 27511 states and 34876 transitions. Word has length 55 [2021-11-07 19:42:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:42:46,404 INFO L470 AbstractCegarLoop]: Abstraction has 27511 states and 34876 transitions. [2021-11-07 19:42:46,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 19:42:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 27511 states and 34876 transitions. [2021-11-07 19:42:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 19:42:46,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:42:46,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:42:46,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 19:42:46,406 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr149ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 164 more)] === [2021-11-07 19:42:46,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:42:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash 505876853, now seen corresponding path program 1 times [2021-11-07 19:42:46,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:42:46,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984722880] [2021-11-07 19:42:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:42:46,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:42:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:42:46,506 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 19:42:46,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:42:46,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984722880] [2021-11-07 19:42:46,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984722880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:42:46,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:42:46,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:42:46,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903302166] [2021-11-07 19:42:46,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:42:46,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:42:46,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:42:46,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:42:46,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:42:46,508 INFO L87 Difference]: Start difference. First operand 27511 states and 34876 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 19:42:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:42:47,341 INFO L93 Difference]: Finished difference Result 27511 states and 34876 transitions. [2021-11-07 19:42:47,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:42:47,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2021-11-07 19:42:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:42:47,380 INFO L225 Difference]: With dead ends: 27511 [2021-11-07 19:42:47,380 INFO L226 Difference]: Without dead ends: 27452 [2021-11-07 19:42:47,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.59ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:42:47,391 INFO L933 BasicCegarLoop]: 17770 mSDtfsCounter, 17718 mSDsluCounter, 17722 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17718 SdHoareTripleChecker+Valid, 35492 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.60ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.63ms IncrementalHoareTripleChecker+Time [2021-11-07 19:42:47,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17718 Valid, 35492 Invalid, 54 Unknown, 0 Unchecked, 26.60ms Time], IncrementalHoareTripleChecker [28 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 46.63ms Time] [2021-11-07 19:42:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27452 states.