./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 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-wip.dd.seqcomp-5f08f0f [2021-11-05 15:52:38,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 15:52:38,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 15:52:38,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 15:52:38,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 15:52:38,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 15:52:38,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 15:52:38,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 15:52:38,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 15:52:38,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 15:52:38,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 15:52:38,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 15:52:38,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 15:52:38,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 15:52:38,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 15:52:38,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 15:52:38,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 15:52:38,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 15:52:38,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 15:52:38,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 15:52:38,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 15:52:38,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 15:52:38,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 15:52:38,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 15:52:38,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 15:52:38,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 15:52:38,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 15:52:38,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 15:52:38,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 15:52:38,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 15:52:38,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 15:52:38,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 15:52:38,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 15:52:38,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 15:52:38,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 15:52:38,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 15:52:38,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 15:52:38,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 15:52:38,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 15:52:38,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 15:52:38,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 15:52:38,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 15:52:38,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 15:52:38,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 15:52:38,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 15:52:38,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 15:52:38,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 15:52:38,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 15:52:38,526 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 15:52:38,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 15:52:38,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 15:52:38,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 15:52:38,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 15:52:38,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 15:52:38,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 15:52:38,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 15:52:38,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 15:52:38,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 15:52:38,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 15:52:38,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 15:52:38,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 15:52:38,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:52:38,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 15:52:38,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 15:52:38,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 15:52:38,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 15:52:38,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 15:52:38,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 15:52:38,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 15:52:38,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 15:52:38,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 15:52:38,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709e000bdea0bf1517f1edc69f1d5199e729e3cf1effc12ce3f796e9f1102469 [2021-11-05 15:52:38,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 15:52:38,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 15:52:38,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 15:52:38,855 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 15:52:38,856 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 15:52:38,857 INFO L432 ainManager$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 [2021-11-05 15:52:38,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb878e369/35ddfb1dc88f4a77b658fea699703ffe/FLAG7afdbe0b5 [2021-11-05 15:52:39,675 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 15:52:39,676 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 [2021-11-05 15:52:39,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb878e369/35ddfb1dc88f4a77b658fea699703ffe/FLAG7afdbe0b5 [2021-11-05 15:52:39,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb878e369/35ddfb1dc88f4a77b658fea699703ffe [2021-11-05 15:52:39,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 15:52:39,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 15:52:39,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 15:52:39,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 15:52:39,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 15:52:39,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:52:39" (1/1) ... [2021-11-05 15:52:39,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf9bf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:39, skipping insertion in model container [2021-11-05 15:52:39,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 03:52:39" (1/1) ... [2021-11-05 15:52:39,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 15:52:40,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 15:52:41,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-05 15:52:41,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:52:41,361 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 15:52:41,644 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i[185756,185769] [2021-11-05 15:52:41,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 15:52:41,773 INFO L208 MainTranslator]: Completed translation [2021-11-05 15:52:41,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41 WrapperNode [2021-11-05 15:52:41,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 15:52:41,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 15:52:41,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 15:52:41,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 15:52:41,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:41,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:43,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 15:52:43,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 15:52:43,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 15:52:43,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 15:52:43,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:43,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:43,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:43,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:44,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:44,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:44,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:44,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 15:52:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 15:52:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 15:52:44,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 15:52:44,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (1/1) ... [2021-11-05 15:52:44,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 15:52:44,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 15:52:44,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 15:52:44,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 15:52:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 15:52:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 15:52:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 15:52:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 15:52:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 15:52:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 15:52:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 15:52:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 15:52:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 15:52:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 15:52:46,005 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-05 15:52:46,057 WARN L804 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-05 15:53:07,642 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3547: assume !vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem200 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem202 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem200 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem201 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem203 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem201 % 4294967296), 8);vfio_pci_ioctl_#t~short204 := vfio_pci_ioctl_#t~mem202 % 18446744073709551616 != vfio_pci_ioctl_#t~mem203 % 18446744073709551616; [2021-11-05 15:53:07,642 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3546: assume vfio_pci_ioctl_#t~short204; [2021-11-05 15:53:07,643 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4594: assume vfio_pci_ioctl_#t~short204; [2021-11-05 15:53:07,643 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4595: assume !vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem200 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem202 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem200 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem201 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem203 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem201 % 4294967296), 8);vfio_pci_ioctl_#t~short204 := vfio_pci_ioctl_#t~mem202 % 18446744073709551616 != vfio_pci_ioctl_#t~mem203 % 18446744073709551616; [2021-11-05 15:53:07,644 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem205 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem207 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem205 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem206 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem208 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem206 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem207 - vfio_pci_ioctl_#t~mem208), vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);havoc vfio_pci_ioctl_#t~mem205;havoc vfio_pci_ioctl_#t~mem207;havoc vfio_pci_ioctl_#t~mem206;havoc vfio_pci_ioctl_#t~mem208; [2021-11-05 15:53:07,644 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: assume !vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2021-11-05 15:53:07,644 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-2: call vfio_pci_ioctl_#t~mem209 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2021-11-05 15:53:07,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;call vfio_pci_ioctl_#t~mem205 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem207 := read~int(vfio_pci_ioctl_~pdev~2.base, 8 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem205 % 4294967296)), 8);call vfio_pci_ioctl_#t~mem206 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem208 := read~int(vfio_pci_ioctl_~pdev~2.base, 1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem206 % 4294967296), 8);call write~int(1 + (vfio_pci_ioctl_#t~mem207 - vfio_pci_ioctl_#t~mem208), vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);havoc vfio_pci_ioctl_#t~mem205;havoc vfio_pci_ioctl_#t~mem207;havoc vfio_pci_ioctl_#t~mem206;havoc vfio_pci_ioctl_#t~mem208; [2021-11-05 15:53:07,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-3: assume !vfio_pci_ioctl_#t~short204;havoc vfio_pci_ioctl_#t~mem198;havoc vfio_pci_ioctl_#t~mem199;havoc vfio_pci_ioctl_#t~mem200;havoc vfio_pci_ioctl_#t~mem202;havoc vfio_pci_ioctl_#t~mem201;havoc vfio_pci_ioctl_#t~mem203;havoc vfio_pci_ioctl_#t~short204;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2021-11-05 15:53:07,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754-5: call vfio_pci_ioctl_#t~mem209 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8); [2021-11-05 15:53:07,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume 0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem209;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4); [2021-11-05 15:53:07,645 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759-1: assume !(0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem209;call write~int(3, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem210 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem211 := read~int(vfio_pci_ioctl_~pdev~2.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem210 % 4294967296)), 8);vfio_pci_ioctl_#t~short213 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem211, 512) % 18446744073709551616; [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume 0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616;havoc vfio_pci_ioctl_#t~mem209;call write~int(0, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4); [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2759: assume !(0 == vfio_pci_ioctl_#t~mem209 % 18446744073709551616);havoc vfio_pci_ioctl_#t~mem209;call write~int(3, vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem210 := read~int(vfio_pci_ioctl_~#info___0~0.base, 8 + vfio_pci_ioctl_~#info___0~0.offset, 4);call vfio_pci_ioctl_#t~mem211 := read~int(vfio_pci_ioctl_~pdev~2.base, 24 + (1242 + vfio_pci_ioctl_~pdev~2.offset + 56 * (vfio_pci_ioctl_#t~mem210 % 4294967296)), 8);vfio_pci_ioctl_#t~short213 := 0 != ~bitwiseAnd(vfio_pci_ioctl_#t~mem211, 512) % 18446744073709551616; [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem212 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);vfio_pci_ioctl_#t~short213 := vfio_pci_ioctl_#t~mem212 % 18446744073709551616 > 4095; [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765: assume !vfio_pci_ioctl_#t~short213; [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem210;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem214 := read~int(vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem214, 4), vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);havoc vfio_pci_ioctl_#t~mem214; [2021-11-05 15:53:07,646 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-2: assume !vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem210;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~short213; [2021-11-05 15:53:07,647 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem212 := read~int(vfio_pci_ioctl_~#info___0~0.base, 16 + vfio_pci_ioctl_~#info___0~0.offset, 8);vfio_pci_ioctl_#t~short213 := vfio_pci_ioctl_#t~mem212 % 18446744073709551616 > 4095; [2021-11-05 15:53:07,647 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-5: assume !vfio_pci_ioctl_#t~short213; [2021-11-05 15:53:07,647 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem210;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~short213;call vfio_pci_ioctl_#t~mem214 := read~int(vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);call write~int(~bitwiseOr(vfio_pci_ioctl_#t~mem214, 4), vfio_pci_ioctl_~#info___0~0.base, 4 + vfio_pci_ioctl_~#info___0~0.offset, 4);havoc vfio_pci_ioctl_#t~mem214; [2021-11-05 15:53:07,647 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L2765-7: assume !vfio_pci_ioctl_#t~short213;havoc vfio_pci_ioctl_#t~mem210;havoc vfio_pci_ioctl_#t~mem211;havoc vfio_pci_ioctl_#t~mem212;havoc vfio_pci_ioctl_#t~short213; [2021-11-05 15:53:07,693 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 15:53:07,694 INFO L299 CfgBuilder]: Removed 6923 assume(true) statements. [2021-11-05 15:53:07,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:53:07 BoogieIcfgContainer [2021-11-05 15:53:07,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 15:53:07,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 15:53:07,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 15:53:07,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 15:53:07,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 03:52:39" (1/3) ... [2021-11-05 15:53:07,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15433fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:53:07, skipping insertion in model container [2021-11-05 15:53:07,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 03:52:41" (2/3) ... [2021-11-05 15:53:07,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15433fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 03:53:07, skipping insertion in model container [2021-11-05 15:53:07,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 03:53:07" (3/3) ... [2021-11-05 15:53:07,710 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--vfio--pci--vfio-pci.ko-main.cil.out.i [2021-11-05 15:53:07,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 15:53:07,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-05 15:53:07,775 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 15:53:07,785 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 15:53:07,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-05 15:53:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 7809 states, 7801 states have (on average 1.4563517497756697) internal successors, (11361), 7808 states have internal predecessors, (11361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-05 15:53:07,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:07,921 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] [2021-11-05 15:53:07,921 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)] === [2021-11-05 15:53:07,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:07,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1086763830, now seen corresponding path program 1 times [2021-11-05 15:53:07,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:07,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437968973] [2021-11-05 15:53:07,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:07,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:08,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:08,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437968973] [2021-11-05 15:53:08,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437968973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:08,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:08,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:53:08,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217152308] [2021-11-05 15:53:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:08,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:53:08,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:08,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:53:08,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:08,496 INFO L87 Difference]: Start difference. First operand has 7809 states, 7801 states have (on average 1.4563517497756697) internal successors, (11361), 7808 states have internal predecessors, (11361), 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) [2021-11-05 15:53:08,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:08,897 INFO L93 Difference]: Finished difference Result 15969 states and 23160 transitions. [2021-11-05 15:53:08,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:53:08,899 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 [2021-11-05 15:53:08,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:08,960 INFO L225 Difference]: With dead ends: 15969 [2021-11-05 15:53:08,961 INFO L226 Difference]: Without dead ends: 8155 [2021-11-05 15:53:08,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:08,988 INFO L933 BasicCegarLoop]: 11246 mSDtfsCounter, 416 mSDsluCounter, 11215 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 22461 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.87ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.78ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:08,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 22461 Invalid, 29 Unknown, 0 Unchecked, 42.87ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 75.78ms Time] [2021-11-05 15:53:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8155 states. [2021-11-05 15:53:09,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8155 to 8123. [2021-11-05 15:53:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8123 states, 8116 states have (on average 1.4324790537210448) internal successors, (11626), 8122 states have internal predecessors, (11626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8123 states to 8123 states and 11626 transitions. [2021-11-05 15:53:09,250 INFO L78 Accepts]: Start accepts. Automaton has 8123 states and 11626 transitions. Word has length 32 [2021-11-05 15:53:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 8123 states and 11626 transitions. [2021-11-05 15:53:09,252 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) [2021-11-05 15:53:09,253 INFO L276 IsEmpty]: Start isEmpty. Operand 8123 states and 11626 transitions. [2021-11-05 15:53:09,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 15:53:09,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:09,255 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] [2021-11-05 15:53:09,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 15:53:09,255 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)] === [2021-11-05 15:53:09,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:09,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1709174855, now seen corresponding path program 1 times [2021-11-05 15:53:09,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:09,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435566272] [2021-11-05 15:53:09,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:09,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:09,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:09,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435566272] [2021-11-05 15:53:09,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435566272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:09,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:09,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:53:09,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852027582] [2021-11-05 15:53:09,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:09,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:53:09,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:09,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:53:09,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:09,401 INFO L87 Difference]: Start difference. First operand 8123 states and 11626 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:09,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:09,999 INFO L93 Difference]: Finished difference Result 23816 states and 34243 transitions. [2021-11-05 15:53:09,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:53:10,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2021-11-05 15:53:10,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:10,268 INFO L225 Difference]: With dead ends: 23816 [2021-11-05 15:53:10,268 INFO L226 Difference]: Without dead ends: 15696 [2021-11-05 15:53:10,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:10,295 INFO L933 BasicCegarLoop]: 22062 mSDtfsCounter, 11197 mSDsluCounter, 10933 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 218.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11197 SdHoareTripleChecker+Valid, 32995 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.77ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 247.01ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:10,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11197 Valid, 32995 Invalid, 16 Unknown, 0 Unchecked, 45.77ms Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 247.01ms Time] [2021-11-05 15:53:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15696 states. [2021-11-05 15:53:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15696 to 15688. [2021-11-05 15:53:10,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15688 states, 15681 states have (on average 1.4418723295708182) internal successors, (22610), 15687 states have internal predecessors, (22610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15688 states to 15688 states and 22610 transitions. [2021-11-05 15:53:10,771 INFO L78 Accepts]: Start accepts. Automaton has 15688 states and 22610 transitions. Word has length 34 [2021-11-05 15:53:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:10,771 INFO L470 AbstractCegarLoop]: Abstraction has 15688 states and 22610 transitions. [2021-11-05 15:53:10,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 15688 states and 22610 transitions. [2021-11-05 15:53:10,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 15:53:10,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:10,775 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] [2021-11-05 15:53:10,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 15:53:10,776 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)] === [2021-11-05 15:53:10,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:10,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1068528312, now seen corresponding path program 1 times [2021-11-05 15:53:10,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:10,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001906866] [2021-11-05 15:53:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:10,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:10,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:10,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001906866] [2021-11-05 15:53:10,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001906866] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:10,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:10,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 15:53:10,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238977678] [2021-11-05 15:53:10,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:10,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 15:53:10,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 15:53:10,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:10,954 INFO L87 Difference]: Start difference. First operand 15688 states and 22610 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:11,321 INFO L93 Difference]: Finished difference Result 31389 states and 45249 transitions. [2021-11-05 15:53:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 15:53:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-05 15:53:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:11,374 INFO L225 Difference]: With dead ends: 31389 [2021-11-05 15:53:11,374 INFO L226 Difference]: Without dead ends: 15704 [2021-11-05 15:53:11,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 15:53:11,406 INFO L933 BasicCegarLoop]: 11233 mSDtfsCounter, 0 mSDsluCounter, 11193 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22426 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.65ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.89ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:11,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22426 Invalid, 62 Unknown, 0 Unchecked, 26.65ms Time], IncrementalHoareTripleChecker [14 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 72.89ms Time] [2021-11-05 15:53:11,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15704 states. [2021-11-05 15:53:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15704 to 15704. [2021-11-05 15:53:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15704 states, 15697 states have (on average 1.4414219277568963) internal successors, (22626), 15703 states have internal predecessors, (22626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:12,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15704 states to 15704 states and 22626 transitions. [2021-11-05 15:53:12,033 INFO L78 Accepts]: Start accepts. Automaton has 15704 states and 22626 transitions. Word has length 124 [2021-11-05 15:53:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:12,034 INFO L470 AbstractCegarLoop]: Abstraction has 15704 states and 22626 transitions. [2021-11-05 15:53:12,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:12,035 INFO L276 IsEmpty]: Start isEmpty. Operand 15704 states and 22626 transitions. [2021-11-05 15:53:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 15:53:12,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:12,036 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] [2021-11-05 15:53:12,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 15:53:12,037 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)] === [2021-11-05 15:53:12,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:12,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1460709686, now seen corresponding path program 1 times [2021-11-05 15:53:12,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:12,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377705637] [2021-11-05 15:53:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:12,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:12,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:12,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377705637] [2021-11-05 15:53:12,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377705637] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:12,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:12,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:12,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039607929] [2021-11-05 15:53:12,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:12,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:12,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:12,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:12,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:12,182 INFO L87 Difference]: Start difference. First operand 15704 states and 22626 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:13,643 INFO L93 Difference]: Finished difference Result 77686 states and 112156 transitions. [2021-11-05 15:53:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:13,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-05 15:53:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:13,838 INFO L225 Difference]: With dead ends: 77686 [2021-11-05 15:53:13,839 INFO L226 Difference]: Without dead ends: 61985 [2021-11-05 15:53:13,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.98ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:13,882 INFO L933 BasicCegarLoop]: 22501 mSDtfsCounter, 33273 mSDsluCounter, 33669 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33273 SdHoareTripleChecker+Valid, 56170 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 94.29ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.36ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:13,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33273 Valid, 56170 Invalid, 83 Unknown, 0 Unchecked, 94.29ms Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 97.36ms Time] [2021-11-05 15:53:13,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61985 states. [2021-11-05 15:53:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61985 to 15708. [2021-11-05 15:53:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15708 states, 15701 states have (on average 1.4413094707343481) internal successors, (22630), 15707 states have internal predecessors, (22630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15708 states to 15708 states and 22630 transitions. [2021-11-05 15:53:14,660 INFO L78 Accepts]: Start accepts. Automaton has 15708 states and 22630 transitions. Word has length 124 [2021-11-05 15:53:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:14,661 INFO L470 AbstractCegarLoop]: Abstraction has 15708 states and 22630 transitions. [2021-11-05 15:53:14,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:14,663 INFO L276 IsEmpty]: Start isEmpty. Operand 15708 states and 22630 transitions. [2021-11-05 15:53:14,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-05 15:53:14,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:14,668 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] [2021-11-05 15:53:14,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 15:53:14,669 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)] === [2021-11-05 15:53:14,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:14,669 INFO L85 PathProgramCache]: Analyzing trace with hash 347341648, now seen corresponding path program 1 times [2021-11-05 15:53:14,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:14,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505890730] [2021-11-05 15:53:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:14,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:14,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:14,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505890730] [2021-11-05 15:53:14,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505890730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:14,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:14,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:14,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876335237] [2021-11-05 15:53:14,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:14,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:14,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:14,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:14,850 INFO L87 Difference]: Start difference. First operand 15708 states and 22630 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:16,171 INFO L93 Difference]: Finished difference Result 77746 states and 112212 transitions. [2021-11-05 15:53:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:16,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-05 15:53:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:16,329 INFO L225 Difference]: With dead ends: 77746 [2021-11-05 15:53:16,330 INFO L226 Difference]: Without dead ends: 62041 [2021-11-05 15:53:16,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.79ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:16,383 INFO L933 BasicCegarLoop]: 11360 mSDtfsCounter, 44277 mSDsluCounter, 22641 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44277 SdHoareTripleChecker+Valid, 34001 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.73ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.01ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:16,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44277 Valid, 34001 Invalid, 67 Unknown, 0 Unchecked, 61.73ms Time], IncrementalHoareTripleChecker [14 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 78.01ms Time] [2021-11-05 15:53:16,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62041 states. [2021-11-05 15:53:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62041 to 15712. [2021-11-05 15:53:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15712 states, 15705 states have (on average 1.4411970709964979) internal successors, (22634), 15711 states have internal predecessors, (22634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:17,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15712 states to 15712 states and 22634 transitions. [2021-11-05 15:53:17,086 INFO L78 Accepts]: Start accepts. Automaton has 15712 states and 22634 transitions. Word has length 127 [2021-11-05 15:53:17,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:17,086 INFO L470 AbstractCegarLoop]: Abstraction has 15712 states and 22634 transitions. [2021-11-05 15:53:17,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:17,087 INFO L276 IsEmpty]: Start isEmpty. Operand 15712 states and 22634 transitions. [2021-11-05 15:53:17,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-05 15:53:17,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:17,088 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] [2021-11-05 15:53:17,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 15:53:17,089 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)] === [2021-11-05 15:53:17,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:17,089 INFO L85 PathProgramCache]: Analyzing trace with hash 38528940, now seen corresponding path program 1 times [2021-11-05 15:53:17,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:17,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875640444] [2021-11-05 15:53:17,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:17,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:17,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:17,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875640444] [2021-11-05 15:53:17,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875640444] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:17,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:17,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:17,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838730747] [2021-11-05 15:53:17,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:17,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:17,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:17,269 INFO L87 Difference]: Start difference. First operand 15712 states and 22634 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:18,507 INFO L93 Difference]: Finished difference Result 77746 states and 112208 transitions. [2021-11-05 15:53:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-05 15:53:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:18,626 INFO L225 Difference]: With dead ends: 77746 [2021-11-05 15:53:18,626 INFO L226 Difference]: Without dead ends: 62037 [2021-11-05 15:53:18,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.24ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:18,667 INFO L933 BasicCegarLoop]: 22516 mSDtfsCounter, 33268 mSDsluCounter, 33697 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33268 SdHoareTripleChecker+Valid, 56213 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.39ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.04ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:18,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33268 Valid, 56213 Invalid, 84 Unknown, 0 Unchecked, 50.39ms Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 95.04ms Time] [2021-11-05 15:53:18,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62037 states. [2021-11-05 15:53:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62037 to 15716. [2021-11-05 15:53:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15716 states, 15709 states have (on average 1.4410847284995862) internal successors, (22638), 15715 states have internal predecessors, (22638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15716 states to 15716 states and 22638 transitions. [2021-11-05 15:53:19,276 INFO L78 Accepts]: Start accepts. Automaton has 15716 states and 22638 transitions. Word has length 129 [2021-11-05 15:53:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:19,277 INFO L470 AbstractCegarLoop]: Abstraction has 15716 states and 22638 transitions. [2021-11-05 15:53:19,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 15716 states and 22638 transitions. [2021-11-05 15:53:19,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 15:53:19,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:19,279 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] [2021-11-05 15:53:19,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 15:53:19,279 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)] === [2021-11-05 15:53:19,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1634946294, now seen corresponding path program 1 times [2021-11-05 15:53:19,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:19,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755228956] [2021-11-05 15:53:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:19,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:19,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:19,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755228956] [2021-11-05 15:53:19,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755228956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:19,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:19,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:19,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823262519] [2021-11-05 15:53:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:19,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:19,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:19,472 INFO L87 Difference]: Start difference. First operand 15716 states and 22638 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:21,296 INFO L93 Difference]: Finished difference Result 77750 states and 112208 transitions. [2021-11-05 15:53:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-05 15:53:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:21,393 INFO L225 Difference]: With dead ends: 77750 [2021-11-05 15:53:21,394 INFO L226 Difference]: Without dead ends: 62037 [2021-11-05 15:53:21,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.76ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:21,425 INFO L933 BasicCegarLoop]: 22518 mSDtfsCounter, 33266 mSDsluCounter, 33697 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33266 SdHoareTripleChecker+Valid, 56215 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 68.87ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.91ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:21,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33266 Valid, 56215 Invalid, 88 Unknown, 0 Unchecked, 68.87ms Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 97.91ms Time] [2021-11-05 15:53:21,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62037 states. [2021-11-05 15:53:22,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62037 to 15720. [2021-11-05 15:53:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15720 states, 15713 states have (on average 1.4409724431998983) internal successors, (22642), 15719 states have internal predecessors, (22642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:22,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15720 states to 15720 states and 22642 transitions. [2021-11-05 15:53:22,077 INFO L78 Accepts]: Start accepts. Automaton has 15720 states and 22642 transitions. Word has length 132 [2021-11-05 15:53:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:22,078 INFO L470 AbstractCegarLoop]: Abstraction has 15720 states and 22642 transitions. [2021-11-05 15:53:22,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:22,078 INFO L276 IsEmpty]: Start isEmpty. Operand 15720 states and 22642 transitions. [2021-11-05 15:53:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-05 15:53:22,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:22,080 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] [2021-11-05 15:53:22,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 15:53:22,080 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)] === [2021-11-05 15:53:22,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1340369784, now seen corresponding path program 1 times [2021-11-05 15:53:22,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:22,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675279264] [2021-11-05 15:53:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:22,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:22,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:22,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675279264] [2021-11-05 15:53:22,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675279264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:22,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:22,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:22,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581033466] [2021-11-05 15:53:22,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:22,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:22,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:22,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:22,263 INFO L87 Difference]: Start difference. First operand 15720 states and 22642 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:24,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:24,125 INFO L93 Difference]: Finished difference Result 77758 states and 112212 transitions. [2021-11-05 15:53:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:24,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 135 [2021-11-05 15:53:24,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:24,226 INFO L225 Difference]: With dead ends: 77758 [2021-11-05 15:53:24,226 INFO L226 Difference]: Without dead ends: 62041 [2021-11-05 15:53:24,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.28ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:24,261 INFO L933 BasicCegarLoop]: 11456 mSDtfsCounter, 44252 mSDsluCounter, 22726 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44252 SdHoareTripleChecker+Valid, 34182 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.89ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.17ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:24,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44252 Valid, 34182 Invalid, 80 Unknown, 0 Unchecked, 51.89ms Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 87.17ms Time] [2021-11-05 15:53:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62041 states. [2021-11-05 15:53:24,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62041 to 15724. [2021-11-05 15:53:24,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15724 states, 15717 states have (on average 1.4408602150537635) internal successors, (22646), 15723 states have internal predecessors, (22646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15724 states to 15724 states and 22646 transitions. [2021-11-05 15:53:24,973 INFO L78 Accepts]: Start accepts. Automaton has 15724 states and 22646 transitions. Word has length 135 [2021-11-05 15:53:24,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:24,973 INFO L470 AbstractCegarLoop]: Abstraction has 15724 states and 22646 transitions. [2021-11-05 15:53:24,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:24,974 INFO L276 IsEmpty]: Start isEmpty. Operand 15724 states and 22646 transitions. [2021-11-05 15:53:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-05 15:53:24,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:24,975 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] [2021-11-05 15:53:24,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 15:53:24,976 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)] === [2021-11-05 15:53:24,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:24,976 INFO L85 PathProgramCache]: Analyzing trace with hash 423059804, now seen corresponding path program 1 times [2021-11-05 15:53:24,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:24,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460282465] [2021-11-05 15:53:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:24,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:25,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:25,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460282465] [2021-11-05 15:53:25,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460282465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:25,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:25,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:25,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706737895] [2021-11-05 15:53:25,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:25,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:25,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:25,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:25,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:25,173 INFO L87 Difference]: Start difference. First operand 15724 states and 22646 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:27,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:27,101 INFO L93 Difference]: Finished difference Result 77742 states and 112192 transitions. [2021-11-05 15:53:27,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:27,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 137 [2021-11-05 15:53:27,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:27,201 INFO L225 Difference]: With dead ends: 77742 [2021-11-05 15:53:27,201 INFO L226 Difference]: Without dead ends: 62021 [2021-11-05 15:53:27,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.26ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:27,232 INFO L933 BasicCegarLoop]: 22516 mSDtfsCounter, 33260 mSDsluCounter, 33691 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33260 SdHoareTripleChecker+Valid, 56207 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.17ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.93ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:27,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33260 Valid, 56207 Invalid, 88 Unknown, 0 Unchecked, 53.17ms Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 89.93ms Time] [2021-11-05 15:53:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62021 states. [2021-11-05 15:53:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62021 to 15728. [2021-11-05 15:53:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15728 states, 15721 states have (on average 1.4407480440175562) internal successors, (22650), 15727 states have internal predecessors, (22650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 22650 transitions. [2021-11-05 15:53:27,948 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 22650 transitions. Word has length 137 [2021-11-05 15:53:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:27,949 INFO L470 AbstractCegarLoop]: Abstraction has 15728 states and 22650 transitions. [2021-11-05 15:53:27,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:27,949 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 22650 transitions. [2021-11-05 15:53:27,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-05 15:53:27,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:27,950 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] [2021-11-05 15:53:27,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 15:53:27,951 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)] === [2021-11-05 15:53:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash -397844976, now seen corresponding path program 1 times [2021-11-05 15:53:27,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:27,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894674103] [2021-11-05 15:53:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:27,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:28,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:28,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894674103] [2021-11-05 15:53:28,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894674103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:28,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:28,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:28,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677247603] [2021-11-05 15:53:28,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:28,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:28,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:28,166 INFO L87 Difference]: Start difference. First operand 15728 states and 22650 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:30,095 INFO L93 Difference]: Finished difference Result 77655 states and 112086 transitions. [2021-11-05 15:53:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 15:53:30,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 140 [2021-11-05 15:53:30,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:30,284 INFO L225 Difference]: With dead ends: 77655 [2021-11-05 15:53:30,284 INFO L226 Difference]: Without dead ends: 61930 [2021-11-05 15:53:30,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.49ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:30,309 INFO L933 BasicCegarLoop]: 11523 mSDtfsCounter, 44169 mSDsluCounter, 44474 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44169 SdHoareTripleChecker+Valid, 55997 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 51.87ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.50ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:30,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44169 Valid, 55997 Invalid, 88 Unknown, 0 Unchecked, 51.87ms Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 92.50ms Time] [2021-11-05 15:53:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61930 states. [2021-11-05 15:53:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61930 to 15732. [2021-11-05 15:53:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15732 states, 15725 states have (on average 1.4406359300476947) internal successors, (22654), 15731 states have internal predecessors, (22654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15732 states to 15732 states and 22654 transitions. [2021-11-05 15:53:31,130 INFO L78 Accepts]: Start accepts. Automaton has 15732 states and 22654 transitions. Word has length 140 [2021-11-05 15:53:31,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:31,130 INFO L470 AbstractCegarLoop]: Abstraction has 15732 states and 22654 transitions. [2021-11-05 15:53:31,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:31,131 INFO L276 IsEmpty]: Start isEmpty. Operand 15732 states and 22654 transitions. [2021-11-05 15:53:31,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-05 15:53:31,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:31,132 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] [2021-11-05 15:53:31,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 15:53:31,133 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)] === [2021-11-05 15:53:31,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:31,133 INFO L85 PathProgramCache]: Analyzing trace with hash -286403660, now seen corresponding path program 1 times [2021-11-05 15:53:31,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:31,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054213495] [2021-11-05 15:53:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:31,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:31,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:31,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054213495] [2021-11-05 15:53:31,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054213495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:31,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:31,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 15:53:31,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915042907] [2021-11-05 15:53:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:31,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 15:53:31,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:31,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 15:53:31,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 15:53:31,335 INFO L87 Difference]: Start difference. First operand 15732 states and 22654 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:33,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 15:53:33,745 INFO L93 Difference]: Finished difference Result 77054 states and 111432 transitions. [2021-11-05 15:53:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 15:53:33,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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 142 [2021-11-05 15:53:33,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 15:53:33,839 INFO L225 Difference]: With dead ends: 77054 [2021-11-05 15:53:33,839 INFO L226 Difference]: Without dead ends: 61325 [2021-11-05 15:53:33,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.76ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 15:53:33,865 INFO L933 BasicCegarLoop]: 11320 mSDtfsCounter, 65724 mSDsluCounter, 66521 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65724 SdHoareTripleChecker+Valid, 77841 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.73ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.19ms IncrementalHoareTripleChecker+Time [2021-11-05 15:53:33,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65724 Valid, 77841 Invalid, 33 Unknown, 0 Unchecked, 80.73ms Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 31.19ms Time] [2021-11-05 15:53:33,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61325 states. [2021-11-05 15:53:34,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61325 to 15738. [2021-11-05 15:53:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15738 states, 15731 states have (on average 1.4404678659970758) internal successors, (22660), 15737 states have internal predecessors, (22660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:34,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15738 states to 15738 states and 22660 transitions. [2021-11-05 15:53:34,762 INFO L78 Accepts]: Start accepts. Automaton has 15738 states and 22660 transitions. Word has length 142 [2021-11-05 15:53:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 15:53:34,762 INFO L470 AbstractCegarLoop]: Abstraction has 15738 states and 22660 transitions. [2021-11-05 15:53:34,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 15:53:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 15738 states and 22660 transitions. [2021-11-05 15:53:34,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-05 15:53:34,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 15:53:34,764 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] [2021-11-05 15:53:34,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 15:53:34,765 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)] === [2021-11-05 15:53:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 15:53:34,766 INFO L85 PathProgramCache]: Analyzing trace with hash 999922544, now seen corresponding path program 1 times [2021-11-05 15:53:34,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 15:53:34,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222905788] [2021-11-05 15:53:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 15:53:34,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 15:53:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 15:53:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 15:53:34,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 15:53:34,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222905788] [2021-11-05 15:53:34,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222905788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 15:53:34,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 15:53:34,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 15:53:34,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587621661] [2021-11-05 15:53:34,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 15:53:34,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 15:53:34,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 15:53:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 15:53:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 15:53:34,956 INFO L87 Difference]: Start difference. First operand 15738 states and 22660 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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)