./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.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 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:31:29,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:31:29,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:31:29,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:31:29,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:31:29,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:31:29,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:31:29,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:31:29,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:31:29,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:31:29,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:31:29,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:31:29,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:31:29,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:31:29,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:31:29,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:31:29,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:31:29,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:31:29,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:31:29,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:31:29,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:31:29,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:31:29,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:31:29,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:31:29,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:31:29,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:31:29,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:31:29,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:31:29,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:31:29,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:31:29,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:31:29,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:31:29,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:31:29,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:31:29,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:31:29,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:31:29,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:31:29,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:31:29,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:31:29,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:31:29,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:31:29,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:31:29,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:31:29,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:31:29,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:31:29,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:31:29,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:31:29,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:31:29,889 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:31:29,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:31:29,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:31:29,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:31:29,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:31:29,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:31:29,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:31:29,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:31:29,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:31:29,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:31:29,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:31:29,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:31:29,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:31:29,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:31:29,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:31:29,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:31:29,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:31:29,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:31:29,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-05 22:31:30,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:31:30,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:31:30,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:31:30,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:31:30,173 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:31:30,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-05 22:31:30,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082176b80/08ebc8403acf4d75ba8a25ce64238083/FLAG29c0becb8 [2021-11-05 22:31:30,892 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:31:30,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-05 22:31:30,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082176b80/08ebc8403acf4d75ba8a25ce64238083/FLAG29c0becb8 [2021-11-05 22:31:30,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/082176b80/08ebc8403acf4d75ba8a25ce64238083 [2021-11-05 22:31:30,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:31:30,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:31:30,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:31:30,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:31:30,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:31:30,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:31:30" (1/1) ... [2021-11-05 22:31:30,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c75db8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:30, skipping insertion in model container [2021-11-05 22:31:30,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:31:30" (1/1) ... [2021-11-05 22:31:30,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:31:31,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:31:33,785 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-05 22:31:33,787 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-05 22:31:33,787 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-05 22:31:33,788 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-05 22:31:33,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:31:33,862 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:31:34,177 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-05 22:31:34,177 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-05 22:31:34,178 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-05 22:31:34,178 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_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-05 22:31:34,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:31:34,387 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:31:34,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34 WrapperNode [2021-11-05 22:31:34,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:31:34,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:31:34,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:31:34,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:31:34,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:34,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:35,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:31:35,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:31:35,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:31:35,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:31:35,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:35,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:36,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:36,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:36,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:37,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:37,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:37,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:31:37,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:31:37,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:31:37,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:31:37,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (1/1) ... [2021-11-05 22:31:37,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:31:37,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:31:37,618 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) [2021-11-05 22:31:37,669 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 [2021-11-05 22:31:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-05 22:31:37,682 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-05 22:31:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:31:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-05 22:31:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-05 22:31:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-05 22:31:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:31:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:31:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-05 22:31:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-05 22:31:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 22:31:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 22:31:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-05 22:31:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-05 22:31:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-05 22:31:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-05 22:31:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-05 22:31:37,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-05 22:31:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-05 22:31:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-05 22:31:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:31:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-05 22:31:37,686 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-05 22:31:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:31:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-05 22:31:57,728 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 22:31:57,728 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 22:31:57,729 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 22:31:57,730 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 22:31:57,731 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:31:57,732 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 22:31:57,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:31:57,778 INFO L299 CfgBuilder]: Removed 9691 assume(true) statements. [2021-11-05 22:31:57,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:31:57 BoogieIcfgContainer [2021-11-05 22:31:57,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:31:57,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:31:57,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:31:57,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:31:57,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:31:30" (1/3) ... [2021-11-05 22:31:57,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c18e5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:31:57, skipping insertion in model container [2021-11-05 22:31:57,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:31:34" (2/3) ... [2021-11-05 22:31:57,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c18e5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:31:57, skipping insertion in model container [2021-11-05 22:31:57,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:31:57" (3/3) ... [2021-11-05 22:31:57,796 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-05 22:31:57,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:31:57,801 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-05 22:31:57,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:31:57,868 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 [2021-11-05 22:31:57,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-05 22:31:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-05 22:31:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 22:31:57,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:31:57,988 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:31:57,989 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:31:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:31:57,996 INFO L85 PathProgramCache]: Analyzing trace with hash -623206203, now seen corresponding path program 1 times [2021-11-05 22:31:58,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:31:58,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344970606] [2021-11-05 22:31:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:31:58,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:31:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:31:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:31:58,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:31:58,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344970606] [2021-11-05 22:31:58,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344970606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:31:58,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:31:58,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:31:58,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588972972] [2021-11-05 22:31:58,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:31:58,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:31:58,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:31:58,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:31:58,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:31:58,496 INFO L87 Difference]: Start difference. First operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 22:32:00,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:00,442 INFO L93 Difference]: Finished difference Result 27424 states and 36462 transitions. [2021-11-05 22:32:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:32:00,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-05 22:32:00,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:00,513 INFO L225 Difference]: With dead ends: 27424 [2021-11-05 22:32:00,514 INFO L226 Difference]: Without dead ends: 17758 [2021-11-05 22:32:00,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:32:00,542 INFO L933 BasicCegarLoop]: 12379 mSDtfsCounter, 11729 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 882.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11729 SdHoareTripleChecker+Valid, 24596 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.13ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1043.86ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:00,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11729 Valid, 24596 Invalid, 34 Unknown, 0 Unchecked, 77.13ms Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1043.86ms Time] [2021-11-05 22:32:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17758 states. [2021-11-05 22:32:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17758 to 17758. [2021-11-05 22:32:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17758 states, 17466 states have (on average 1.2856979274018092) internal successors, (22456), 17507 states have internal predecessors, (22456), 230 states have call successors, (230), 20 states have call predecessors, (230), 20 states have return successors, (230), 230 states have call predecessors, (230), 230 states have call successors, (230) [2021-11-05 22:32:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17758 states to 17758 states and 22916 transitions. [2021-11-05 22:32:01,209 INFO L78 Accepts]: Start accepts. Automaton has 17758 states and 22916 transitions. Word has length 90 [2021-11-05 22:32:01,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:01,210 INFO L470 AbstractCegarLoop]: Abstraction has 17758 states and 22916 transitions. [2021-11-05 22:32:01,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2021-11-05 22:32:01,211 INFO L276 IsEmpty]: Start isEmpty. Operand 17758 states and 22916 transitions. [2021-11-05 22:32:01,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 22:32:01,217 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:01,217 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:01,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:32:01,218 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:01,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:01,219 INFO L85 PathProgramCache]: Analyzing trace with hash -968367872, now seen corresponding path program 1 times [2021-11-05 22:32:01,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:01,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727253029] [2021-11-05 22:32:01,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:01,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:32:01,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:01,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727253029] [2021-11-05 22:32:01,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727253029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:01,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:01,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:01,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279969956] [2021-11-05 22:32:01,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:01,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:32:01,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:01,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:32:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:32:01,697 INFO L87 Difference]: Start difference. First operand 17758 states and 22916 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:02,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:32:03,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:03,407 INFO L93 Difference]: Finished difference Result 35318 states and 45614 transitions. [2021-11-05 22:32:03,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:32:03,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2021-11-05 22:32:03,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:03,477 INFO L225 Difference]: With dead ends: 35318 [2021-11-05 22:32:03,477 INFO L226 Difference]: Without dead ends: 26428 [2021-11-05 22:32:03,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:32:03,504 INFO L933 BasicCegarLoop]: 22907 mSDtfsCounter, 11233 mSDsluCounter, 11654 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1060.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11233 SdHoareTripleChecker+Valid, 34561 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.93ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1144.78ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:03,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11233 Valid, 34561 Invalid, 30 Unknown, 0 Unchecked, 46.93ms Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1144.78ms Time] [2021-11-05 22:32:03,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26428 states. [2021-11-05 22:32:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26428 to 26428. [2021-11-05 22:32:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26428 states, 26011 states have (on average 1.2863403944485026) internal successors, (33459), 26052 states have internal predecessors, (33459), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-05 22:32:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26428 states to 26428 states and 34149 transitions. [2021-11-05 22:32:04,033 INFO L78 Accepts]: Start accepts. Automaton has 26428 states and 34149 transitions. Word has length 119 [2021-11-05 22:32:04,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:04,034 INFO L470 AbstractCegarLoop]: Abstraction has 26428 states and 34149 transitions. [2021-11-05 22:32:04,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:04,034 INFO L276 IsEmpty]: Start isEmpty. Operand 26428 states and 34149 transitions. [2021-11-05 22:32:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 22:32:04,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:04,041 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:04,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:32:04,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:04,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash 2046735746, now seen corresponding path program 1 times [2021-11-05 22:32:04,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:04,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580268531] [2021-11-05 22:32:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:04,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:32:04,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:04,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580268531] [2021-11-05 22:32:04,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580268531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:04,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:04,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:04,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280570309] [2021-11-05 22:32:04,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:04,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:32:04,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:04,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:32:04,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:32:04,242 INFO L87 Difference]: Start difference. First operand 26428 states and 34149 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:06,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:32:07,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:07,223 INFO L93 Difference]: Finished difference Result 52659 states and 68082 transitions. [2021-11-05 22:32:07,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:32:07,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 119 [2021-11-05 22:32:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:07,296 INFO L225 Difference]: With dead ends: 52659 [2021-11-05 22:32:07,297 INFO L226 Difference]: Without dead ends: 35099 [2021-11-05 22:32:07,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:32:07,339 INFO L933 BasicCegarLoop]: 22907 mSDtfsCounter, 11287 mSDsluCounter, 11601 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2056.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11287 SdHoareTripleChecker+Valid, 34508 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.70ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2188.76ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:07,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11287 Valid, 34508 Invalid, 32 Unknown, 0 Unchecked, 37.70ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2188.76ms Time] [2021-11-05 22:32:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35099 states. [2021-11-05 22:32:07,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35099 to 35099. [2021-11-05 22:32:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35099 states, 34557 states have (on average 1.2866568278496398) internal successors, (44463), 34598 states have internal predecessors, (44463), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:08,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35099 states to 35099 states and 45383 transitions. [2021-11-05 22:32:08,029 INFO L78 Accepts]: Start accepts. Automaton has 35099 states and 45383 transitions. Word has length 119 [2021-11-05 22:32:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:08,030 INFO L470 AbstractCegarLoop]: Abstraction has 35099 states and 45383 transitions. [2021-11-05 22:32:08,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 35099 states and 45383 transitions. [2021-11-05 22:32:08,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-05 22:32:08,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:08,038 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:08,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 22:32:08,038 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:08,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:08,039 INFO L85 PathProgramCache]: Analyzing trace with hash 764247360, now seen corresponding path program 1 times [2021-11-05 22:32:08,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:08,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445877209] [2021-11-05 22:32:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:08,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:08,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:08,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445877209] [2021-11-05 22:32:08,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445877209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:08,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:08,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:08,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022779645] [2021-11-05 22:32:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:08,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:08,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:08,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:08,495 INFO L87 Difference]: Start difference. First operand 35099 states and 45383 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-05 22:32:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:09,070 INFO L93 Difference]: Finished difference Result 35099 states and 45383 transitions. [2021-11-05 22:32:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 120 [2021-11-05 22:32:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:09,143 INFO L225 Difference]: With dead ends: 35099 [2021-11-05 22:32:09,144 INFO L226 Difference]: Without dead ends: 35093 [2021-11-05 22:32:09,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:09,162 INFO L933 BasicCegarLoop]: 11668 mSDtfsCounter, 11569 mSDsluCounter, 11554 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11569 SdHoareTripleChecker+Valid, 23222 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.82ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.41ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:09,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11569 Valid, 23222 Invalid, 124 Unknown, 0 Unchecked, 28.82ms Time], IncrementalHoareTripleChecker [40 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 81.41ms Time] [2021-11-05 22:32:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35093 states. [2021-11-05 22:32:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35093 to 35093. [2021-11-05 22:32:09,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35093 states, 34554 states have (on average 1.2865948949470394) internal successors, (44457), 34592 states have internal predecessors, (44457), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:10,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35093 states to 35093 states and 45377 transitions. [2021-11-05 22:32:10,086 INFO L78 Accepts]: Start accepts. Automaton has 35093 states and 45377 transitions. Word has length 120 [2021-11-05 22:32:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:10,086 INFO L470 AbstractCegarLoop]: Abstraction has 35093 states and 45377 transitions. [2021-11-05 22:32:10,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2021-11-05 22:32:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 35093 states and 45377 transitions. [2021-11-05 22:32:10,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-05 22:32:10,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:10,092 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:10,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 22:32:10,093 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2485027, now seen corresponding path program 1 times [2021-11-05 22:32:10,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:10,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969065141] [2021-11-05 22:32:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:10,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:10,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:10,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969065141] [2021-11-05 22:32:10,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969065141] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:10,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:10,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:10,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299944027] [2021-11-05 22:32:10,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:10,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:10,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:10,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:10,442 INFO L87 Difference]: Start difference. First operand 35093 states and 45377 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 22:32:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:11,134 INFO L93 Difference]: Finished difference Result 35093 states and 45377 transitions. [2021-11-05 22:32:11,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:11,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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 122 [2021-11-05 22:32:11,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:11,216 INFO L225 Difference]: With dead ends: 35093 [2021-11-05 22:32:11,216 INFO L226 Difference]: Without dead ends: 35087 [2021-11-05 22:32:11,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:11,233 INFO L933 BasicCegarLoop]: 11662 mSDtfsCounter, 11558 mSDsluCounter, 11551 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11558 SdHoareTripleChecker+Valid, 23213 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.97ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.02ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:11,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11558 Valid, 23213 Invalid, 124 Unknown, 0 Unchecked, 23.97ms Time], IncrementalHoareTripleChecker [43 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 89.02ms Time] [2021-11-05 22:32:11,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35087 states. [2021-11-05 22:32:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35087 to 35087. [2021-11-05 22:32:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35087 states, 34551 states have (on average 1.2865329512893984) internal successors, (44451), 34586 states have internal predecessors, (44451), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35087 states to 35087 states and 45371 transitions. [2021-11-05 22:32:11,999 INFO L78 Accepts]: Start accepts. Automaton has 35087 states and 45371 transitions. Word has length 122 [2021-11-05 22:32:11,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:12,000 INFO L470 AbstractCegarLoop]: Abstraction has 35087 states and 45371 transitions. [2021-11-05 22:32:12,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 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) [2021-11-05 22:32:12,000 INFO L276 IsEmpty]: Start isEmpty. Operand 35087 states and 45371 transitions. [2021-11-05 22:32:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 22:32:12,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:12,006 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:12,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 22:32:12,007 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:12,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:12,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1906676346, now seen corresponding path program 1 times [2021-11-05 22:32:12,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:12,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890239058] [2021-11-05 22:32:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:12,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:12,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:12,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:12,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890239058] [2021-11-05 22:32:12,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890239058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:12,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:12,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:12,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142586172] [2021-11-05 22:32:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:12,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:12,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:12,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:12,386 INFO L87 Difference]: Start difference. First operand 35087 states and 45371 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-05 22:32:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:13,157 INFO L93 Difference]: Finished difference Result 35087 states and 45371 transitions. [2021-11-05 22:32:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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 124 [2021-11-05 22:32:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:13,245 INFO L225 Difference]: With dead ends: 35087 [2021-11-05 22:32:13,245 INFO L226 Difference]: Without dead ends: 35081 [2021-11-05 22:32:13,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.62ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:13,263 INFO L933 BasicCegarLoop]: 11656 mSDtfsCounter, 11550 mSDsluCounter, 11548 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11550 SdHoareTripleChecker+Valid, 23204 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.09ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.02ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:13,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11550 Valid, 23204 Invalid, 121 Unknown, 0 Unchecked, 27.09ms Time], IncrementalHoareTripleChecker [43 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 111.02ms Time] [2021-11-05 22:32:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35081 states. [2021-11-05 22:32:14,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35081 to 35081. [2021-11-05 22:32:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35081 states, 34548 states have (on average 1.2864709968739145) internal successors, (44445), 34580 states have internal predecessors, (44445), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35081 states to 35081 states and 45365 transitions. [2021-11-05 22:32:14,183 INFO L78 Accepts]: Start accepts. Automaton has 35081 states and 45365 transitions. Word has length 124 [2021-11-05 22:32:14,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:14,184 INFO L470 AbstractCegarLoop]: Abstraction has 35081 states and 45365 transitions. [2021-11-05 22:32:14,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 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) [2021-11-05 22:32:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 35081 states and 45365 transitions. [2021-11-05 22:32:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-05 22:32:14,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:14,190 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:14,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 22:32:14,191 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:14,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:14,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1635247209, now seen corresponding path program 1 times [2021-11-05 22:32:14,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:14,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860878060] [2021-11-05 22:32:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:14,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:14,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:14,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860878060] [2021-11-05 22:32:14,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860878060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:14,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:14,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:14,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190825855] [2021-11-05 22:32:14,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:14,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:14,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:14,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:14,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:14,420 INFO L87 Difference]: Start difference. First operand 35081 states and 45365 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-05 22:32:15,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:15,271 INFO L93 Difference]: Finished difference Result 35081 states and 45365 transitions. [2021-11-05 22:32:15,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:15,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 126 [2021-11-05 22:32:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:15,348 INFO L225 Difference]: With dead ends: 35081 [2021-11-05 22:32:15,349 INFO L226 Difference]: Without dead ends: 35075 [2021-11-05 22:32:15,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.50ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:15,368 INFO L933 BasicCegarLoop]: 11650 mSDtfsCounter, 11542 mSDsluCounter, 11545 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11542 SdHoareTripleChecker+Valid, 23195 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.32ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.83ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:15,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11542 Valid, 23195 Invalid, 118 Unknown, 0 Unchecked, 22.32ms Time], IncrementalHoareTripleChecker [43 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 94.83ms Time] [2021-11-05 22:32:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35075 states. [2021-11-05 22:32:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35075 to 35075. [2021-11-05 22:32:16,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35075 states, 34545 states have (on average 1.2864090316977854) internal successors, (44439), 34574 states have internal predecessors, (44439), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35075 states to 35075 states and 45359 transitions. [2021-11-05 22:32:16,314 INFO L78 Accepts]: Start accepts. Automaton has 35075 states and 45359 transitions. Word has length 126 [2021-11-05 22:32:16,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:16,314 INFO L470 AbstractCegarLoop]: Abstraction has 35075 states and 45359 transitions. [2021-11-05 22:32:16,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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) [2021-11-05 22:32:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 35075 states and 45359 transitions. [2021-11-05 22:32:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 22:32:16,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:16,324 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:16,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 22:32:16,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:16,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:16,325 INFO L85 PathProgramCache]: Analyzing trace with hash -485281844, now seen corresponding path program 1 times [2021-11-05 22:32:16,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:16,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633039699] [2021-11-05 22:32:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:16,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:16,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:16,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633039699] [2021-11-05 22:32:16,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633039699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:16,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:16,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:16,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442225273] [2021-11-05 22:32:16,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:16,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:16,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:16,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:16,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:16,529 INFO L87 Difference]: Start difference. First operand 35075 states and 45359 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:17,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:17,379 INFO L93 Difference]: Finished difference Result 35075 states and 45359 transitions. [2021-11-05 22:32:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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 128 [2021-11-05 22:32:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:17,461 INFO L225 Difference]: With dead ends: 35075 [2021-11-05 22:32:17,462 INFO L226 Difference]: Without dead ends: 35069 [2021-11-05 22:32:17,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.16ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:17,473 INFO L933 BasicCegarLoop]: 11644 mSDtfsCounter, 11534 mSDsluCounter, 11542 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11534 SdHoareTripleChecker+Valid, 23186 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.61ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.35ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:17,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11534 Valid, 23186 Invalid, 115 Unknown, 0 Unchecked, 19.61ms Time], IncrementalHoareTripleChecker [43 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 202.35ms Time] [2021-11-05 22:32:17,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35069 states. [2021-11-05 22:32:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35069 to 35069. [2021-11-05 22:32:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35069 states, 34542 states have (on average 1.2863470557582073) internal successors, (44433), 34568 states have internal predecessors, (44433), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35069 states to 35069 states and 45353 transitions. [2021-11-05 22:32:18,513 INFO L78 Accepts]: Start accepts. Automaton has 35069 states and 45353 transitions. Word has length 128 [2021-11-05 22:32:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:18,513 INFO L470 AbstractCegarLoop]: Abstraction has 35069 states and 45353 transitions. [2021-11-05 22:32:18,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-11-05 22:32:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 35069 states and 45353 transitions. [2021-11-05 22:32:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-05 22:32:18,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:18,523 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:18,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 22:32:18,524 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:18,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1795764143, now seen corresponding path program 1 times [2021-11-05 22:32:18,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:18,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676679030] [2021-11-05 22:32:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:18,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:18,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:18,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676679030] [2021-11-05 22:32:18,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676679030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:18,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:18,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:18,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056288404] [2021-11-05 22:32:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:18,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:18,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:18,734 INFO L87 Difference]: Start difference. First operand 35069 states and 45353 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-05 22:32:19,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:19,633 INFO L93 Difference]: Finished difference Result 35069 states and 45353 transitions. [2021-11-05 22:32:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:19,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 130 [2021-11-05 22:32:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:19,717 INFO L225 Difference]: With dead ends: 35069 [2021-11-05 22:32:19,717 INFO L226 Difference]: Without dead ends: 35063 [2021-11-05 22:32:19,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.13ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:19,731 INFO L933 BasicCegarLoop]: 11638 mSDtfsCounter, 11526 mSDsluCounter, 11539 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11526 SdHoareTripleChecker+Valid, 23177 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.87ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 254.55ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:19,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11526 Valid, 23177 Invalid, 112 Unknown, 0 Unchecked, 20.87ms Time], IncrementalHoareTripleChecker [43 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 254.55ms Time] [2021-11-05 22:32:19,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35063 states. [2021-11-05 22:32:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35063 to 35063. [2021-11-05 22:32:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35063 states, 34539 states have (on average 1.2862850690523755) internal successors, (44427), 34562 states have internal predecessors, (44427), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35063 states to 35063 states and 45347 transitions. [2021-11-05 22:32:20,751 INFO L78 Accepts]: Start accepts. Automaton has 35063 states and 45347 transitions. Word has length 130 [2021-11-05 22:32:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:20,751 INFO L470 AbstractCegarLoop]: Abstraction has 35063 states and 45347 transitions. [2021-11-05 22:32:20,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2021-11-05 22:32:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 35063 states and 45347 transitions. [2021-11-05 22:32:20,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 22:32:20,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:20,762 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:20,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 22:32:20,762 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:20,763 INFO L85 PathProgramCache]: Analyzing trace with hash -847330286, now seen corresponding path program 1 times [2021-11-05 22:32:20,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:20,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571865164] [2021-11-05 22:32:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:20,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:21,024 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:21,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:21,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571865164] [2021-11-05 22:32:21,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571865164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:21,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:21,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:21,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661100768] [2021-11-05 22:32:21,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:21,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:21,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:21,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:21,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:21,027 INFO L87 Difference]: Start difference. First operand 35063 states and 45347 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-05 22:32:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:21,895 INFO L93 Difference]: Finished difference Result 35063 states and 45347 transitions. [2021-11-05 22:32:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:21,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 132 [2021-11-05 22:32:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:21,957 INFO L225 Difference]: With dead ends: 35063 [2021-11-05 22:32:21,957 INFO L226 Difference]: Without dead ends: 35057 [2021-11-05 22:32:21,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.01ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:21,977 INFO L933 BasicCegarLoop]: 11632 mSDtfsCounter, 11518 mSDsluCounter, 11536 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11518 SdHoareTripleChecker+Valid, 23168 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.74ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.64ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:21,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11518 Valid, 23168 Invalid, 109 Unknown, 0 Unchecked, 22.74ms Time], IncrementalHoareTripleChecker [43 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 81.64ms Time] [2021-11-05 22:32:22,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35057 states. [2021-11-05 22:32:22,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35057 to 35057. [2021-11-05 22:32:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35057 states, 34536 states have (on average 1.2862230715774843) internal successors, (44421), 34556 states have internal predecessors, (44421), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:22,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35057 states to 35057 states and 45341 transitions. [2021-11-05 22:32:22,991 INFO L78 Accepts]: Start accepts. Automaton has 35057 states and 45341 transitions. Word has length 132 [2021-11-05 22:32:22,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:22,991 INFO L470 AbstractCegarLoop]: Abstraction has 35057 states and 45341 transitions. [2021-11-05 22:32:22,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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) [2021-11-05 22:32:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 35057 states and 45341 transitions. [2021-11-05 22:32:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-05 22:32:23,000 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:23,000 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:23,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 22:32:23,001 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1759562997, now seen corresponding path program 1 times [2021-11-05 22:32:23,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:23,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364950684] [2021-11-05 22:32:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:23,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:23,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:23,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364950684] [2021-11-05 22:32:23,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364950684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:23,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:23,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:23,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199937857] [2021-11-05 22:32:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:23,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:23,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:23,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:23,178 INFO L87 Difference]: Start difference. First operand 35057 states and 45341 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-05 22:32:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:24,029 INFO L93 Difference]: Finished difference Result 35057 states and 45341 transitions. [2021-11-05 22:32:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:24,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 134 [2021-11-05 22:32:24,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:24,088 INFO L225 Difference]: With dead ends: 35057 [2021-11-05 22:32:24,088 INFO L226 Difference]: Without dead ends: 35051 [2021-11-05 22:32:24,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.71ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:24,101 INFO L933 BasicCegarLoop]: 11626 mSDtfsCounter, 11510 mSDsluCounter, 11533 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11510 SdHoareTripleChecker+Valid, 23159 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.01ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.55ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:24,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11510 Valid, 23159 Invalid, 106 Unknown, 0 Unchecked, 19.01ms Time], IncrementalHoareTripleChecker [43 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 66.55ms Time] [2021-11-05 22:32:24,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35051 states. [2021-11-05 22:32:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35051 to 35051. [2021-11-05 22:32:25,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35051 states, 34533 states have (on average 1.2861610633307272) internal successors, (44415), 34550 states have internal predecessors, (44415), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35051 states to 35051 states and 45335 transitions. [2021-11-05 22:32:25,102 INFO L78 Accepts]: Start accepts. Automaton has 35051 states and 45335 transitions. Word has length 134 [2021-11-05 22:32:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:25,103 INFO L470 AbstractCegarLoop]: Abstraction has 35051 states and 45335 transitions. [2021-11-05 22:32:25,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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) [2021-11-05 22:32:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 35051 states and 45335 transitions. [2021-11-05 22:32:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-05 22:32:25,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:25,111 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:25,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 22:32:25,112 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:25,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1276892584, now seen corresponding path program 1 times [2021-11-05 22:32:25,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:25,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836817717] [2021-11-05 22:32:25,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:25,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:25,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:25,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836817717] [2021-11-05 22:32:25,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836817717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:25,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:25,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:25,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262087615] [2021-11-05 22:32:25,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:25,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:25,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:25,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:25,286 INFO L87 Difference]: Start difference. First operand 35051 states and 45335 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-05 22:32:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:26,234 INFO L93 Difference]: Finished difference Result 35051 states and 45335 transitions. [2021-11-05 22:32:26,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:26,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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 136 [2021-11-05 22:32:26,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:26,286 INFO L225 Difference]: With dead ends: 35051 [2021-11-05 22:32:26,286 INFO L226 Difference]: Without dead ends: 35045 [2021-11-05 22:32:26,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.35ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:26,295 INFO L933 BasicCegarLoop]: 11620 mSDtfsCounter, 11502 mSDsluCounter, 11530 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11502 SdHoareTripleChecker+Valid, 23150 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.01ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 173.47ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:26,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11502 Valid, 23150 Invalid, 103 Unknown, 0 Unchecked, 20.01ms Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 173.47ms Time] [2021-11-05 22:32:26,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35045 states. [2021-11-05 22:32:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35045 to 35045. [2021-11-05 22:32:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35045 states, 34530 states have (on average 1.2860990443092963) internal successors, (44409), 34544 states have internal predecessors, (44409), 460 states have call successors, (460), 40 states have call predecessors, (460), 40 states have return successors, (460), 460 states have call predecessors, (460), 460 states have call successors, (460) [2021-11-05 22:32:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35045 states to 35045 states and 45329 transitions. [2021-11-05 22:32:27,246 INFO L78 Accepts]: Start accepts. Automaton has 35045 states and 45329 transitions. Word has length 136 [2021-11-05 22:32:27,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:32:27,247 INFO L470 AbstractCegarLoop]: Abstraction has 35045 states and 45329 transitions. [2021-11-05 22:32:27,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 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) [2021-11-05 22:32:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 35045 states and 45329 transitions. [2021-11-05 22:32:27,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-05 22:32:27,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:32:27,256 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:32:27,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 22:32:27,256 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-05 22:32:27,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:32:27,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1267055675, now seen corresponding path program 1 times [2021-11-05 22:32:27,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:32:27,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106072724] [2021-11-05 22:32:27,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:32:27,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:32:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:32:27,431 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-05 22:32:27,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:32:27,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106072724] [2021-11-05 22:32:27,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106072724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:32:27,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:32:27,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:32:27,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161066900] [2021-11-05 22:32:27,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:32:27,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 22:32:27,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:32:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 22:32:27,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 22:32:27,433 INFO L87 Difference]: Start difference. First operand 35045 states and 45329 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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) [2021-11-05 22:32:28,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:32:28,420 INFO L93 Difference]: Finished difference Result 35045 states and 45329 transitions. [2021-11-05 22:32:28,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 22:32:28,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 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 138 [2021-11-05 22:32:28,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:32:28,481 INFO L225 Difference]: With dead ends: 35045 [2021-11-05 22:32:28,481 INFO L226 Difference]: Without dead ends: 35039 [2021-11-05 22:32:28,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 22:32:28,499 INFO L933 BasicCegarLoop]: 11614 mSDtfsCounter, 11494 mSDsluCounter, 11527 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11494 SdHoareTripleChecker+Valid, 23141 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.04ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.18ms IncrementalHoareTripleChecker+Time [2021-11-05 22:32:28,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11494 Valid, 23141 Invalid, 100 Unknown, 0 Unchecked, 19.04ms Time], IncrementalHoareTripleChecker [43 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 68.18ms Time] [2021-11-05 22:32:28,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35039 states.