./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 22:40:06,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 22:40:06,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 22:40:06,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 22:40:06,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 22:40:06,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 22:40:06,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 22:40:06,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 22:40:06,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 22:40:06,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 22:40:06,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 22:40:06,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 22:40:06,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 22:40:06,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 22:40:06,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 22:40:06,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 22:40:06,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 22:40:06,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 22:40:06,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 22:40:06,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 22:40:06,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 22:40:06,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 22:40:06,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 22:40:06,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 22:40:06,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 22:40:06,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 22:40:06,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 22:40:06,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 22:40:06,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 22:40:06,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 22:40:06,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 22:40:06,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 22:40:06,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 22:40:06,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 22:40:06,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 22:40:06,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 22:40:06,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 22:40:06,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 22:40:06,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 22:40:06,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 22:40:06,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 22:40:06,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 22:40:06,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 22:40:06,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 22:40:06,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 22:40:06,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 22:40:06,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 22:40:06,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 22:40:06,771 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 22:40:06,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 22:40:06,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 22:40:06,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 22:40:06,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 22:40:06,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 22:40:06,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:40:06,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 22:40:06,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 22:40:06,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 22:40:06,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 22:40:06,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 22:40:06,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 [2021-11-22 22:40:06,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 22:40:07,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 22:40:07,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 22:40:07,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 22:40:07,005 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 22:40:07,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 22:40:07,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c6a23ad5/ac58d12e5a9d48ac94fbeeb2cab9d04f/FLAG3c11d6835 [2021-11-22 22:40:07,581 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 22:40:07,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 22:40:07,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c6a23ad5/ac58d12e5a9d48ac94fbeeb2cab9d04f/FLAG3c11d6835 [2021-11-22 22:40:08,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c6a23ad5/ac58d12e5a9d48ac94fbeeb2cab9d04f [2021-11-22 22:40:08,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 22:40:08,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 22:40:08,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 22:40:08,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 22:40:08,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 22:40:08,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:40:08" (1/1) ... [2021-11-22 22:40:08,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15354bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:08, skipping insertion in model container [2021-11-22 22:40:08,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:40:08" (1/1) ... [2021-11-22 22:40:08,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 22:40:08,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 22:40:09,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-22 22:40:09,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:40:09,362 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 22:40:09,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-22 22:40:09,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 22:40:09,694 INFO L208 MainTranslator]: Completed translation [2021-11-22 22:40:09,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09 WrapperNode [2021-11-22 22:40:09,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 22:40:09,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 22:40:09,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 22:40:09,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 22:40:09,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:09,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:10,840 INFO L137 Inliner]: procedures = 286, calls = 2230, calls flagged for inlining = 604, calls inlined = 3466, statements flattened = 54396 [2021-11-22 22:40:10,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 22:40:10,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 22:40:10,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 22:40:10,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 22:40:10,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:10,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:11,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:11,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:11,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:11,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:12,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:12,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 22:40:12,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 22:40:12,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 22:40:12,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 22:40:12,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (1/1) ... [2021-11-22 22:40:12,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 22:40:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 22:40:12,213 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) [2021-11-22 22:40:12,236 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 [2021-11-22 22:40:12,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 22:40:12,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 22:40:12,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 22:40:12,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 22:40:12,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 22:40:12,844 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 22:40:12,845 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 22:40:13,089 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 22:40:13,143 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-22 22:40:31,302 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3547: assume !vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem188#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem190#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem188#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem189#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem191#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem189#1 % 4294967296), 8);vfio_pci_ioctl_#t~short192#1 := vfio_pci_ioctl_#t~mem190#1 % 18446744073709551616 != vfio_pci_ioctl_#t~mem191#1 % 18446744073709551616; [2021-11-22 22:40:31,303 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3546: assume vfio_pci_ioctl_#t~short192#1; [2021-11-22 22:40:31,304 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4594: assume vfio_pci_ioctl_#t~short192#1; [2021-11-22 22:40:31,304 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4595: assume !vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem188#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem190#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem188#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem189#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem191#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem189#1 % 4294967296), 8);vfio_pci_ioctl_#t~short192#1 := vfio_pci_ioctl_#t~mem190#1 % 18446744073709551616 != vfio_pci_ioctl_#t~mem191#1 % 18446744073709551616; [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem193#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem195#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem193#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem194#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem196#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem194#1 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem195#1 - vfio_pci_ioctl_#t~mem196#1), vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);havoc vfio_pci_ioctl_#t~mem193#1;havoc vfio_pci_ioctl_#t~mem195#1;havoc vfio_pci_ioctl_#t~mem194#1;havoc vfio_pci_ioctl_#t~mem196#1; [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume !vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-2: call vfio_pci_ioctl_#t~mem197#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call vfio_pci_ioctl_#t~mem193#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem195#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem193#1 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem194#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem196#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem194#1 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem195#1 - vfio_pci_ioctl_#t~mem196#1), vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);havoc vfio_pci_ioctl_#t~mem193#1;havoc vfio_pci_ioctl_#t~mem195#1;havoc vfio_pci_ioctl_#t~mem194#1;havoc vfio_pci_ioctl_#t~mem196#1; [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume !vfio_pci_ioctl_#t~short192#1;havoc vfio_pci_ioctl_#t~mem186#1;havoc vfio_pci_ioctl_#t~mem187#1;havoc vfio_pci_ioctl_#t~mem188#1;havoc vfio_pci_ioctl_#t~mem190#1;havoc vfio_pci_ioctl_#t~mem189#1;havoc vfio_pci_ioctl_#t~mem191#1;havoc vfio_pci_ioctl_#t~short192#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 22:40:31,305 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-5: call vfio_pci_ioctl_#t~mem197#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8); [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume 0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem197#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4); [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume !(0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem197#1;call write~int(3, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem198#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem199#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem198#1 % 4294967296)), 8);vfio_pci_ioctl_#t~short201#1 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem199#1, 512) % 18446744073709551616; [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume 0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem197#1;call write~int(0, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4); [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume !(0 == vfio_pci_ioctl_#t~mem197#1 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem197#1;call write~int(3, vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem198#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 8 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call vfio_pci_ioctl_#t~mem199#1 := read~int(vfio_pci_ioctl_~pdev~2#1.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2#1.offset + 56 * (vfio_pci_ioctl_#t~mem198#1 % 4294967296)), 8);vfio_pci_ioctl_#t~short201#1 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem199#1, 512) % 18446744073709551616; [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem200#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);vfio_pci_ioctl_#t~short201#1 := vfio_pci_ioctl_#t~mem200#1 % 18446744073709551616 > 4095; [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume !vfio_pci_ioctl_#t~short201#1; [2021-11-22 22:40:31,306 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem202#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem202#1, 4), vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);havoc vfio_pci_ioctl_#t~mem202#1; [2021-11-22 22:40:31,307 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume !vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1; [2021-11-22 22:40:31,307 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem200#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 16 + vfio_pci_ioctl_~#info___0~0#1.offset, 8);vfio_pci_ioctl_#t~short201#1 := vfio_pci_ioctl_#t~mem200#1 % 18446744073709551616 > 4095; [2021-11-22 22:40:31,307 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume !vfio_pci_ioctl_#t~short201#1; [2021-11-22 22:40:31,307 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1;call vfio_pci_ioctl_#t~mem202#1 := read~int(vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem202#1, 4), vfio_pci_ioctl_~#info___0~0#1.base, 4 + vfio_pci_ioctl_~#info___0~0#1.offset, 4);havoc vfio_pci_ioctl_#t~mem202#1; [2021-11-22 22:40:31,307 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume !vfio_pci_ioctl_#t~short201#1;havoc vfio_pci_ioctl_#t~mem198#1;havoc vfio_pci_ioctl_#t~mem199#1;havoc vfio_pci_ioctl_#t~mem200#1;havoc vfio_pci_ioctl_#t~short201#1; [2021-11-22 22:40:31,309 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 22:40:31,338 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 22:40:31,338 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 22:40:31,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:40:31 BoogieIcfgContainer [2021-11-22 22:40:31,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 22:40:31,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 22:40:31,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 22:40:31,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 22:40:31,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:40:08" (1/3) ... [2021-11-22 22:40:31,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b81aec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:40:31, skipping insertion in model container [2021-11-22 22:40:31,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:40:09" (2/3) ... [2021-11-22 22:40:31,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b81aec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:40:31, skipping insertion in model container [2021-11-22 22:40:31,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:40:31" (3/3) ... [2021-11-22 22:40:31,352 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-22 22:40:31,356 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 22:40:31,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-22 22:40:31,413 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 22:40:31,418 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 [2021-11-22 22:40:31,418 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-22 22:40:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 8106 states, 8098 states have (on average 1.4396147196838727) internal successors, (11658), 8105 states have internal predecessors, (11658), 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) [2021-11-22 22:40:31,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 22:40:31,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:31,524 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] [2021-11-22 22:40:31,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1781252491, now seen corresponding path program 1 times [2021-11-22 22:40:31,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:31,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432573533] [2021-11-22 22:40:31,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:31,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:31,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:31,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432573533] [2021-11-22 22:40:31,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432573533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:31,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:31,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:40:31,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394202690] [2021-11-22 22:40:31,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:31,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:40:31,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:31,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:40:31,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:31,981 INFO L87 Difference]: Start difference. First operand has 8106 states, 8098 states have (on average 1.4396147196838727) internal successors, (11658), 8105 states have internal predecessors, (11658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-22 22:40:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:32,327 INFO L93 Difference]: Finished difference Result 16567 states and 23758 transitions. [2021-11-22 22:40:32,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:40:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2021-11-22 22:40:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:32,375 INFO L225 Difference]: With dead ends: 16567 [2021-11-22 22:40:32,375 INFO L226 Difference]: Without dead ends: 8456 [2021-11-22 22:40:32,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:32,399 INFO L933 BasicCegarLoop]: 11536 mSDtfsCounter, 427 mSDsluCounter, 11505 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 23041 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:32,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 23041 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2021-11-22 22:40:32,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 8420. [2021-11-22 22:40:32,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8420 states, 8413 states have (on average 1.4172114584571496) internal successors, (11923), 8419 states have internal predecessors, (11923), 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) [2021-11-22 22:40:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8420 states to 8420 states and 11923 transitions. [2021-11-22 22:40:32,600 INFO L78 Accepts]: Start accepts. Automaton has 8420 states and 11923 transitions. Word has length 32 [2021-11-22 22:40:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:32,601 INFO L470 AbstractCegarLoop]: Abstraction has 8420 states and 11923 transitions. [2021-11-22 22:40:32,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2021-11-22 22:40:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 8420 states and 11923 transitions. [2021-11-22 22:40:32,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-22 22:40:32,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:32,602 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] [2021-11-22 22:40:32,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 22:40:32,603 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:32,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:32,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1071505594, now seen corresponding path program 1 times [2021-11-22 22:40:32,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:32,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508154538] [2021-11-22 22:40:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:32,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:32,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:32,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508154538] [2021-11-22 22:40:32,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508154538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:32,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:32,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:40:32,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840972422] [2021-11-22 22:40:32,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:32,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:40:32,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:40:32,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:32,743 INFO L87 Difference]: Start difference. First operand 8420 states and 11923 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-22 22:40:33,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:33,247 INFO L93 Difference]: Finished difference Result 24693 states and 35120 transitions. [2021-11-22 22:40:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:40:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 38 [2021-11-22 22:40:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:33,301 INFO L225 Difference]: With dead ends: 24693 [2021-11-22 22:40:33,302 INFO L226 Difference]: Without dead ends: 16276 [2021-11-22 22:40:33,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:33,323 INFO L933 BasicCegarLoop]: 22631 mSDtfsCounter, 11483 mSDsluCounter, 11218 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11483 SdHoareTripleChecker+Valid, 33849 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:33,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11483 Valid, 33849 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:40:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2021-11-22 22:40:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 16268. [2021-11-22 22:40:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16268 states, 16261 states have (on average 1.4261115552549044) internal successors, (23190), 16267 states have internal predecessors, (23190), 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) [2021-11-22 22:40:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16268 states to 16268 states and 23190 transitions. [2021-11-22 22:40:33,697 INFO L78 Accepts]: Start accepts. Automaton has 16268 states and 23190 transitions. Word has length 38 [2021-11-22 22:40:33,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:33,697 INFO L470 AbstractCegarLoop]: Abstraction has 16268 states and 23190 transitions. [2021-11-22 22:40:33,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-22 22:40:33,698 INFO L276 IsEmpty]: Start isEmpty. Operand 16268 states and 23190 transitions. [2021-11-22 22:40:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-22 22:40:33,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:33,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:33,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 22:40:33,702 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:33,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:33,702 INFO L85 PathProgramCache]: Analyzing trace with hash 740318977, now seen corresponding path program 1 times [2021-11-22 22:40:33,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:33,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497571962] [2021-11-22 22:40:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:33,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:33,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:33,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497571962] [2021-11-22 22:40:33,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497571962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:33,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:33,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:33,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852324259] [2021-11-22 22:40:33,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:33,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:33,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:33,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:33,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:33,881 INFO L87 Difference]: Start difference. First operand 16268 states and 23190 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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) [2021-11-22 22:40:34,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:34,937 INFO L93 Difference]: Finished difference Result 80540 states and 115010 transitions. [2021-11-22 22:40:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:34,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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 125 [2021-11-22 22:40:34,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:35,282 INFO L225 Difference]: With dead ends: 80540 [2021-11-22 22:40:35,282 INFO L226 Difference]: Without dead ends: 64275 [2021-11-22 22:40:35,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:35,322 INFO L933 BasicCegarLoop]: 23083 mSDtfsCounter, 34143 mSDsluCounter, 34541 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34143 SdHoareTripleChecker+Valid, 57624 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:35,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34143 Valid, 57624 Invalid, 83 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64275 states. [2021-11-22 22:40:35,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64275 to 16272. [2021-11-22 22:40:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16272 states, 16265 states have (on average 1.426006762988011) internal successors, (23194), 16271 states have internal predecessors, (23194), 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) [2021-11-22 22:40:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16272 states to 16272 states and 23194 transitions. [2021-11-22 22:40:35,974 INFO L78 Accepts]: Start accepts. Automaton has 16272 states and 23194 transitions. Word has length 125 [2021-11-22 22:40:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:35,974 INFO L470 AbstractCegarLoop]: Abstraction has 16272 states and 23194 transitions. [2021-11-22 22:40:35,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 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) [2021-11-22 22:40:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 16272 states and 23194 transitions. [2021-11-22 22:40:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-22 22:40:35,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:35,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:35,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 22:40:35,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:35,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:35,981 INFO L85 PathProgramCache]: Analyzing trace with hash -164227898, now seen corresponding path program 1 times [2021-11-22 22:40:35,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:35,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571092609] [2021-11-22 22:40:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:35,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:36,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571092609] [2021-11-22 22:40:36,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571092609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:36,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:36,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:40:36,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60400529] [2021-11-22 22:40:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:36,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:40:36,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:36,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:40:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:36,139 INFO L87 Difference]: Start difference. First operand 16272 states and 23194 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-22 22:40:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:36,609 INFO L93 Difference]: Finished difference Result 32557 states and 46417 transitions. [2021-11-22 22:40:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:40:36,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 [2021-11-22 22:40:36,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:36,640 INFO L225 Difference]: With dead ends: 32557 [2021-11-22 22:40:36,640 INFO L226 Difference]: Without dead ends: 16288 [2021-11-22 22:40:36,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:40:36,662 INFO L933 BasicCegarLoop]: 11525 mSDtfsCounter, 0 mSDsluCounter, 11483 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23008 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:36,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23008 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16288 states. [2021-11-22 22:40:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16288 to 16288. [2021-11-22 22:40:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16288 states, 16281 states have (on average 1.4255881088385234) internal successors, (23210), 16287 states have internal predecessors, (23210), 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) [2021-11-22 22:40:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16288 states to 16288 states and 23210 transitions. [2021-11-22 22:40:37,004 INFO L78 Accepts]: Start accepts. Automaton has 16288 states and 23210 transitions. Word has length 128 [2021-11-22 22:40:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:37,013 INFO L470 AbstractCegarLoop]: Abstraction has 16288 states and 23210 transitions. [2021-11-22 22:40:37,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-22 22:40:37,013 INFO L276 IsEmpty]: Start isEmpty. Operand 16288 states and 23210 transitions. [2021-11-22 22:40:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-22 22:40:37,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:37,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:37,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 22:40:37,015 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:37,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:37,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1550914180, now seen corresponding path program 1 times [2021-11-22 22:40:37,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:37,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977573959] [2021-11-22 22:40:37,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:37,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:37,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:37,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977573959] [2021-11-22 22:40:37,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977573959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:37,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:37,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:37,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071912258] [2021-11-22 22:40:37,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:37,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:37,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:37,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:37,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:37,132 INFO L87 Difference]: Start difference. First operand 16288 states and 23210 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-11-22 22:40:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:38,088 INFO L93 Difference]: Finished difference Result 80646 states and 115112 transitions. [2021-11-22 22:40:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:38,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 [2021-11-22 22:40:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:38,211 INFO L225 Difference]: With dead ends: 80646 [2021-11-22 22:40:38,211 INFO L226 Difference]: Without dead ends: 64361 [2021-11-22 22:40:38,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:38,242 INFO L933 BasicCegarLoop]: 11652 mSDtfsCounter, 45437 mSDsluCounter, 23225 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45437 SdHoareTripleChecker+Valid, 34877 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:38,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45437 Valid, 34877 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-22 22:40:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 16292. [2021-11-22 22:40:38,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16292 states, 16285 states have (on average 1.425483573840958) internal successors, (23214), 16291 states have internal predecessors, (23214), 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) [2021-11-22 22:40:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16292 states to 16292 states and 23214 transitions. [2021-11-22 22:40:38,734 INFO L78 Accepts]: Start accepts. Automaton has 16292 states and 23214 transitions. Word has length 128 [2021-11-22 22:40:38,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:38,735 INFO L470 AbstractCegarLoop]: Abstraction has 16292 states and 23214 transitions. [2021-11-22 22:40:38,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2021-11-22 22:40:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 16292 states and 23214 transitions. [2021-11-22 22:40:38,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-22 22:40:38,736 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:38,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:38,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 22:40:38,737 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:38,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:38,737 INFO L85 PathProgramCache]: Analyzing trace with hash -362164728, now seen corresponding path program 1 times [2021-11-22 22:40:38,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:38,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223384513] [2021-11-22 22:40:38,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:38,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:38,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:38,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223384513] [2021-11-22 22:40:38,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223384513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:38,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:38,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:38,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120698661] [2021-11-22 22:40:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:38,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:38,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:38,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:38,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:38,888 INFO L87 Difference]: Start difference. First operand 16292 states and 23214 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2021-11-22 22:40:40,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:40,148 INFO L93 Difference]: Finished difference Result 80646 states and 115108 transitions. [2021-11-22 22:40:40,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:40,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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 [2021-11-22 22:40:40,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:40,257 INFO L225 Difference]: With dead ends: 80646 [2021-11-22 22:40:40,258 INFO L226 Difference]: Without dead ends: 64357 [2021-11-22 22:40:40,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:40,290 INFO L933 BasicCegarLoop]: 23098 mSDtfsCounter, 34138 mSDsluCounter, 34569 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34138 SdHoareTripleChecker+Valid, 57667 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:40,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34138 Valid, 57667 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64357 states. [2021-11-22 22:40:40,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64357 to 16296. [2021-11-22 22:40:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16296 states, 16289 states have (on average 1.4253790901835595) internal successors, (23218), 16295 states have internal predecessors, (23218), 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) [2021-11-22 22:40:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16296 states to 16296 states and 23218 transitions. [2021-11-22 22:40:40,950 INFO L78 Accepts]: Start accepts. Automaton has 16296 states and 23218 transitions. Word has length 130 [2021-11-22 22:40:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:40,950 INFO L470 AbstractCegarLoop]: Abstraction has 16296 states and 23218 transitions. [2021-11-22 22:40:40,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2021-11-22 22:40:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16296 states and 23218 transitions. [2021-11-22 22:40:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-22 22:40:40,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:40,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:40,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 22:40:40,952 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:40,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2113943361, now seen corresponding path program 1 times [2021-11-22 22:40:40,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:40,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697496988] [2021-11-22 22:40:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:40,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:41,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:41,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697496988] [2021-11-22 22:40:41,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697496988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:41,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:41,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:41,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325576652] [2021-11-22 22:40:41,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:41,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:41,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:41,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:41,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:41,118 INFO L87 Difference]: Start difference. First operand 16296 states and 23218 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2021-11-22 22:40:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:42,684 INFO L93 Difference]: Finished difference Result 80650 states and 115108 transitions. [2021-11-22 22:40:42,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:42,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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 133 [2021-11-22 22:40:42,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:42,802 INFO L225 Difference]: With dead ends: 80650 [2021-11-22 22:40:42,803 INFO L226 Difference]: Without dead ends: 64357 [2021-11-22 22:40:42,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:42,842 INFO L933 BasicCegarLoop]: 23100 mSDtfsCounter, 34136 mSDsluCounter, 34569 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34136 SdHoareTripleChecker+Valid, 57669 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:42,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34136 Valid, 57669 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:42,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64357 states. [2021-11-22 22:40:43,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64357 to 16300. [2021-11-22 22:40:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16300 states, 16293 states have (on average 1.4252746578285154) internal successors, (23222), 16299 states have internal predecessors, (23222), 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) [2021-11-22 22:40:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 23222 transitions. [2021-11-22 22:40:43,714 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 23222 transitions. Word has length 133 [2021-11-22 22:40:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:43,715 INFO L470 AbstractCegarLoop]: Abstraction has 16300 states and 23222 transitions. [2021-11-22 22:40:43,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2021-11-22 22:40:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 23222 transitions. [2021-11-22 22:40:43,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-22 22:40:43,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:43,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:43,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 22:40:43,717 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1592990942, now seen corresponding path program 1 times [2021-11-22 22:40:43,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045093216] [2021-11-22 22:40:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:43,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:43,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:43,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045093216] [2021-11-22 22:40:43,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045093216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:43,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:43,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:43,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980424777] [2021-11-22 22:40:43,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:43,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:43,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:43,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:43,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:43,897 INFO L87 Difference]: Start difference. First operand 16300 states and 23222 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-22 22:40:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:45,548 INFO L93 Difference]: Finished difference Result 80658 states and 115112 transitions. [2021-11-22 22:40:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:45,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 [2021-11-22 22:40:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:45,684 INFO L225 Difference]: With dead ends: 80658 [2021-11-22 22:40:45,684 INFO L226 Difference]: Without dead ends: 64361 [2021-11-22 22:40:45,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:45,730 INFO L933 BasicCegarLoop]: 11748 mSDtfsCounter, 45412 mSDsluCounter, 23310 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45412 SdHoareTripleChecker+Valid, 35058 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:45,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45412 Valid, 35058 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-22 22:40:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 16304. [2021-11-22 22:40:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16304 states, 16297 states have (on average 1.4251702767380499) internal successors, (23226), 16303 states have internal predecessors, (23226), 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) [2021-11-22 22:40:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16304 states to 16304 states and 23226 transitions. [2021-11-22 22:40:46,556 INFO L78 Accepts]: Start accepts. Automaton has 16304 states and 23226 transitions. Word has length 136 [2021-11-22 22:40:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:46,556 INFO L470 AbstractCegarLoop]: Abstraction has 16304 states and 23226 transitions. [2021-11-22 22:40:46,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2021-11-22 22:40:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 16304 states and 23226 transitions. [2021-11-22 22:40:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-22 22:40:46,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:46,558 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:46,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 22:40:46,558 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:46,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash 887988058, now seen corresponding path program 1 times [2021-11-22 22:40:46,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:46,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951227555] [2021-11-22 22:40:46,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:46,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:46,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:46,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951227555] [2021-11-22 22:40:46,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951227555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:46,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:46,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:46,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582948087] [2021-11-22 22:40:46,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:46,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:46,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:46,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:46,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:46,717 INFO L87 Difference]: Start difference. First operand 16304 states and 23226 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2021-11-22 22:40:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:48,587 INFO L93 Difference]: Finished difference Result 80642 states and 115092 transitions. [2021-11-22 22:40:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:48,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 [2021-11-22 22:40:48,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:48,701 INFO L225 Difference]: With dead ends: 80642 [2021-11-22 22:40:48,702 INFO L226 Difference]: Without dead ends: 64341 [2021-11-22 22:40:48,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:48,729 INFO L933 BasicCegarLoop]: 23098 mSDtfsCounter, 34130 mSDsluCounter, 34563 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34130 SdHoareTripleChecker+Valid, 57661 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:48,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34130 Valid, 57661 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64341 states. [2021-11-22 22:40:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64341 to 16308. [2021-11-22 22:40:49,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16308 states, 16301 states have (on average 1.425065946874425) internal successors, (23230), 16307 states have internal predecessors, (23230), 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) [2021-11-22 22:40:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16308 states to 16308 states and 23230 transitions. [2021-11-22 22:40:49,567 INFO L78 Accepts]: Start accepts. Automaton has 16308 states and 23230 transitions. Word has length 138 [2021-11-22 22:40:49,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:49,567 INFO L470 AbstractCegarLoop]: Abstraction has 16308 states and 23230 transitions. [2021-11-22 22:40:49,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2021-11-22 22:40:49,568 INFO L276 IsEmpty]: Start isEmpty. Operand 16308 states and 23230 transitions. [2021-11-22 22:40:49,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-22 22:40:49,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:49,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:49,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 22:40:49,570 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1451889819, now seen corresponding path program 1 times [2021-11-22 22:40:49,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:49,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607967514] [2021-11-22 22:40:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:49,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:49,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:49,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607967514] [2021-11-22 22:40:49,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607967514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:49,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:49,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:49,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581246886] [2021-11-22 22:40:49,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:49,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:49,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:49,764 INFO L87 Difference]: Start difference. First operand 16308 states and 23230 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2021-11-22 22:40:51,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:51,874 INFO L93 Difference]: Finished difference Result 80545 states and 114976 transitions. [2021-11-22 22:40:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 22:40:51,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 141 [2021-11-22 22:40:51,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:52,002 INFO L225 Difference]: With dead ends: 80545 [2021-11-22 22:40:52,003 INFO L226 Difference]: Without dead ends: 64240 [2021-11-22 22:40:52,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:52,034 INFO L933 BasicCegarLoop]: 11815 mSDtfsCounter, 45324 mSDsluCounter, 45619 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45324 SdHoareTripleChecker+Valid, 57434 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:52,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45324 Valid, 57434 Invalid, 88 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 22:40:52,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64240 states. [2021-11-22 22:40:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64240 to 16312. [2021-11-22 22:40:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16312 states, 16305 states have (on average 1.4249616681999386) internal successors, (23234), 16311 states have internal predecessors, (23234), 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) [2021-11-22 22:40:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16312 states to 16312 states and 23234 transitions. [2021-11-22 22:40:52,889 INFO L78 Accepts]: Start accepts. Automaton has 16312 states and 23234 transitions. Word has length 141 [2021-11-22 22:40:52,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:52,890 INFO L470 AbstractCegarLoop]: Abstraction has 16312 states and 23234 transitions. [2021-11-22 22:40:52,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2021-11-22 22:40:52,890 INFO L276 IsEmpty]: Start isEmpty. Operand 16312 states and 23234 transitions. [2021-11-22 22:40:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-22 22:40:52,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:52,895 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:52,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 22:40:52,896 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2141968993, now seen corresponding path program 1 times [2021-11-22 22:40:52,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:52,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071909002] [2021-11-22 22:40:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:52,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:53,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:53,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:53,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071909002] [2021-11-22 22:40:53,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071909002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:53,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:53,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 22:40:53,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560070973] [2021-11-22 22:40:53,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:53,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 22:40:53,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:53,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 22:40:53,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:53,088 INFO L87 Difference]: Start difference. First operand 16312 states and 23234 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2021-11-22 22:40:55,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:55,673 INFO L93 Difference]: Finished difference Result 79930 states and 114308 transitions. [2021-11-22 22:40:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 22:40:55,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 143 [2021-11-22 22:40:55,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:55,785 INFO L225 Difference]: With dead ends: 79930 [2021-11-22 22:40:55,785 INFO L226 Difference]: Without dead ends: 63621 [2021-11-22 22:40:55,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 22:40:55,819 INFO L933 BasicCegarLoop]: 11612 mSDtfsCounter, 67440 mSDsluCounter, 68246 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67440 SdHoareTripleChecker+Valid, 79858 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:55,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67440 Valid, 79858 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:40:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63621 states. [2021-11-22 22:40:56,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63621 to 16318. [2021-11-22 22:40:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16318 states, 16311 states have (on average 1.4248053460854637) internal successors, (23240), 16317 states have internal predecessors, (23240), 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) [2021-11-22 22:40:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16318 states to 16318 states and 23240 transitions. [2021-11-22 22:40:56,740 INFO L78 Accepts]: Start accepts. Automaton has 16318 states and 23240 transitions. Word has length 143 [2021-11-22 22:40:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:40:56,741 INFO L470 AbstractCegarLoop]: Abstraction has 16318 states and 23240 transitions. [2021-11-22 22:40:56,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2021-11-22 22:40:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 16318 states and 23240 transitions. [2021-11-22 22:40:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 22:40:56,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:40:56,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:40:56,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 22:40:56,742 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:40:56,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:40:56,743 INFO L85 PathProgramCache]: Analyzing trace with hash -515805144, now seen corresponding path program 1 times [2021-11-22 22:40:56,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:40:56,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24856862] [2021-11-22 22:40:56,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:40:56,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:40:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:40:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:40:56,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:40:56,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24856862] [2021-11-22 22:40:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24856862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:40:56,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:40:56,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:40:56,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081372909] [2021-11-22 22:40:56,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:40:56,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:40:56,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:40:56,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:40:56,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:40:56,906 INFO L87 Difference]: Start difference. First operand 16318 states and 23240 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-11-22 22:40:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:40:59,005 INFO L93 Difference]: Finished difference Result 64683 states and 92287 transitions. [2021-11-22 22:40:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 22:40:59,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 148 [2021-11-22 22:40:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:40:59,088 INFO L225 Difference]: With dead ends: 64683 [2021-11-22 22:40:59,088 INFO L226 Difference]: Without dead ends: 48368 [2021-11-22 22:40:59,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:40:59,113 INFO L933 BasicCegarLoop]: 23022 mSDtfsCounter, 33997 mSDsluCounter, 34537 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33997 SdHoareTripleChecker+Valid, 57559 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:40:59,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33997 Valid, 57559 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:40:59,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48368 states. [2021-11-22 22:41:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48368 to 16322. [2021-11-22 22:41:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16322 states, 16315 states have (on average 1.4247011952191235) internal successors, (23244), 16321 states have internal predecessors, (23244), 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) [2021-11-22 22:41:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16322 states to 16322 states and 23244 transitions. [2021-11-22 22:41:00,049 INFO L78 Accepts]: Start accepts. Automaton has 16322 states and 23244 transitions. Word has length 148 [2021-11-22 22:41:00,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:41:00,050 INFO L470 AbstractCegarLoop]: Abstraction has 16322 states and 23244 transitions. [2021-11-22 22:41:00,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-11-22 22:41:00,050 INFO L276 IsEmpty]: Start isEmpty. Operand 16322 states and 23244 transitions. [2021-11-22 22:41:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-22 22:41:00,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:41:00,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:41:00,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 22:41:00,051 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:41:00,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:41:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash 185259434, now seen corresponding path program 1 times [2021-11-22 22:41:00,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:41:00,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436846448] [2021-11-22 22:41:00,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:41:00,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:41:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:41:00,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:41:00,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:41:00,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436846448] [2021-11-22 22:41:00,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436846448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:41:00,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:41:00,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 22:41:00,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505059968] [2021-11-22 22:41:00,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:41:00,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 22:41:00,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:41:00,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 22:41:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 22:41:00,208 INFO L87 Difference]: Start difference. First operand 16322 states and 23244 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-11-22 22:41:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:41:01,136 INFO L93 Difference]: Finished difference Result 40548 states and 57813 transitions. [2021-11-22 22:41:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 22:41:01,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 148 [2021-11-22 22:41:01,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:41:01,169 INFO L225 Difference]: With dead ends: 40548 [2021-11-22 22:41:01,170 INFO L226 Difference]: Without dead ends: 24229 [2021-11-22 22:41:01,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 22:41:01,190 INFO L933 BasicCegarLoop]: 11621 mSDtfsCounter, 33890 mSDsluCounter, 11543 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33890 SdHoareTripleChecker+Valid, 23164 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:41:01,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33890 Valid, 23164 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:41:01,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24229 states. [2021-11-22 22:41:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24229 to 16324. [2021-11-22 22:41:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16324 states, 16317 states have (on average 1.4245878531592817) internal successors, (23245), 16323 states have internal predecessors, (23245), 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) [2021-11-22 22:41:02,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16324 states to 16324 states and 23245 transitions. [2021-11-22 22:41:02,119 INFO L78 Accepts]: Start accepts. Automaton has 16324 states and 23245 transitions. Word has length 148 [2021-11-22 22:41:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:41:02,119 INFO L470 AbstractCegarLoop]: Abstraction has 16324 states and 23245 transitions. [2021-11-22 22:41:02,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2021-11-22 22:41:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 16324 states and 23245 transitions. [2021-11-22 22:41:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-22 22:41:02,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:41:02,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:41:02,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 22:41:02,122 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:41:02,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:41:02,123 INFO L85 PathProgramCache]: Analyzing trace with hash -880562085, now seen corresponding path program 1 times [2021-11-22 22:41:02,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:41:02,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957198878] [2021-11-22 22:41:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:41:02,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:41:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:41:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:41:02,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:41:02,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957198878] [2021-11-22 22:41:02,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957198878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:41:02,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:41:02,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:41:02,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649947982] [2021-11-22 22:41:02,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:41:02,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:41:02,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:41:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:41:02,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:02,339 INFO L87 Difference]: Start difference. First operand 16324 states and 23245 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-22 22:41:03,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:41:03,067 INFO L93 Difference]: Finished difference Result 16324 states and 23245 transitions. [2021-11-22 22:41:03,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:41:03,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2021-11-22 22:41:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:41:03,090 INFO L225 Difference]: With dead ends: 16324 [2021-11-22 22:41:03,090 INFO L226 Difference]: Without dead ends: 16318 [2021-11-22 22:41:03,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:03,094 INFO L933 BasicCegarLoop]: 11522 mSDtfsCounter, 8674 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8674 SdHoareTripleChecker+Valid, 14202 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:41:03,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8674 Valid, 14202 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:41:03,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16318 states. [2021-11-22 22:41:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16318 to 16318. [2021-11-22 22:41:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16318 states, 16314 states have (on average 1.4243594458747089) internal successors, (23237), 16317 states have internal predecessors, (23237), 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) [2021-11-22 22:41:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16318 states to 16318 states and 23237 transitions. [2021-11-22 22:41:03,839 INFO L78 Accepts]: Start accepts. Automaton has 16318 states and 23237 transitions. Word has length 165 [2021-11-22 22:41:03,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:41:03,840 INFO L470 AbstractCegarLoop]: Abstraction has 16318 states and 23237 transitions. [2021-11-22 22:41:03,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-22 22:41:03,841 INFO L276 IsEmpty]: Start isEmpty. Operand 16318 states and 23237 transitions. [2021-11-22 22:41:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-22 22:41:03,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:41:03,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:41:03,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 22:41:03,843 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:41:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:41:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1527594779, now seen corresponding path program 1 times [2021-11-22 22:41:03,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:41:03,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938710873] [2021-11-22 22:41:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:41:03,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:41:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:41:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:41:04,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:41:04,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938710873] [2021-11-22 22:41:04,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938710873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:41:04,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:41:04,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:41:04,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212508557] [2021-11-22 22:41:04,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:41:04,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:41:04,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:41:04,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:41:04,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:04,045 INFO L87 Difference]: Start difference. First operand 16318 states and 23237 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-22 22:41:04,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:41:04,763 INFO L93 Difference]: Finished difference Result 16318 states and 23237 transitions. [2021-11-22 22:41:04,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:41:04,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2021-11-22 22:41:04,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:41:04,789 INFO L225 Difference]: With dead ends: 16318 [2021-11-22 22:41:04,789 INFO L226 Difference]: Without dead ends: 16316 [2021-11-22 22:41:04,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:04,798 INFO L933 BasicCegarLoop]: 11522 mSDtfsCounter, 11359 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11359 SdHoareTripleChecker+Valid, 11522 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:41:04,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11359 Valid, 11522 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:41:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16316 states. [2021-11-22 22:41:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16316 to 16316. [2021-11-22 22:41:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16316 states, 16313 states have (on average 1.4243241586464783) internal successors, (23235), 16315 states have internal predecessors, (23235), 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) [2021-11-22 22:41:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16316 states to 16316 states and 23235 transitions. [2021-11-22 22:41:05,619 INFO L78 Accepts]: Start accepts. Automaton has 16316 states and 23235 transitions. Word has length 166 [2021-11-22 22:41:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 22:41:05,619 INFO L470 AbstractCegarLoop]: Abstraction has 16316 states and 23235 transitions. [2021-11-22 22:41:05,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-22 22:41:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 16316 states and 23235 transitions. [2021-11-22 22:41:05,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-22 22:41:05,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 22:41:05,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 22:41:05,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 22:41:05,623 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-22 22:41:05,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 22:41:05,623 INFO L85 PathProgramCache]: Analyzing trace with hash -110771802, now seen corresponding path program 1 times [2021-11-22 22:41:05,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 22:41:05,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238647683] [2021-11-22 22:41:05,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 22:41:05,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 22:41:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 22:41:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 22:41:05,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 22:41:05,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238647683] [2021-11-22 22:41:05,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238647683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 22:41:05,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 22:41:05,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 22:41:05,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847612419] [2021-11-22 22:41:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 22:41:05,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 22:41:05,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 22:41:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 22:41:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:05,813 INFO L87 Difference]: Start difference. First operand 16316 states and 23235 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2021-11-22 22:41:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 22:41:06,536 INFO L93 Difference]: Finished difference Result 16316 states and 23235 transitions. [2021-11-22 22:41:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 22:41:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 167 [2021-11-22 22:41:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 22:41:06,559 INFO L225 Difference]: With dead ends: 16316 [2021-11-22 22:41:06,559 INFO L226 Difference]: Without dead ends: 16284 [2021-11-22 22:41:06,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 22:41:06,564 INFO L933 BasicCegarLoop]: 11521 mSDtfsCounter, 11356 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11356 SdHoareTripleChecker+Valid, 11521 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 22:41:06,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11356 Valid, 11521 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 22:41:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16284 states.