/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:36:16,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:36:16,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:36:16,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:36:16,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:36:16,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:36:16,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:36:16,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:36:16,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:36:16,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:36:16,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:36:16,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:36:16,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:36:16,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:36:16,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:36:16,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:36:16,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:36:16,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:36:16,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:36:16,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:36:16,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:36:16,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:36:16,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:36:16,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:36:16,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 14:36:16,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 14:36:16,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 14:36:16,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 14:36:16,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 14:36:16,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 14:36:16,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:36:16,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:36:16,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:36:16,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:36:16,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:36:16,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:36:16,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:36:16,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:36:16,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:36:16,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:36:16,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:36:16,803 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:36:16,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:36:16,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:36:16,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:36:16,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:36:16,837 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:36:16,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:36:16,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:36:16,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:36:16,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:36:16,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:36:16,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:36:16,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:36:16,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:36:16,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:36:16,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:36:16,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:36:16,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:36:16,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:36:16,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:36:16,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:36:16,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:36:16,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:36:16,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:36:16,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:36:16,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:36:16,841 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:36:17,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:36:17,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:36:17,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:36:17,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:36:17,332 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:36:17,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2020-12-22 14:36:17,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbef69bfb/ca31f9c8b93a46989a02d82baf12131d/FLAGb79fdcaa7 [2020-12-22 14:36:18,745 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:36:18,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2020-12-22 14:36:18,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbef69bfb/ca31f9c8b93a46989a02d82baf12131d/FLAGb79fdcaa7 [2020-12-22 14:36:18,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbef69bfb/ca31f9c8b93a46989a02d82baf12131d [2020-12-22 14:36:18,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:36:19,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:36:19,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:36:19,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:36:19,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:36:19,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:18" (1/1) ... [2020-12-22 14:36:19,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d45e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:19, skipping insertion in model container [2020-12-22 14:36:19,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:18" (1/1) ... [2020-12-22 14:36:19,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:36:19,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:36:21,421 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2020-12-22 14:36:21,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:36:21,794 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:36:22,265 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i[280100,280113] [2020-12-22 14:36:22,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:36:22,831 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:36:22,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22 WrapperNode [2020-12-22 14:36:22,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:36:22,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:36:22,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:36:22,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:36:22,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:23,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:27,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:36:27,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:36:27,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:36:27,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:36:27,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:27,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:28,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:28,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:31,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:31,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:32,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... [2020-12-22 14:36:33,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:36:33,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:36:33,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:36:33,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:36:33,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:36:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 14:36:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 14:36:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:36:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:36:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:36:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:36:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 14:36:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 14:36:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:36:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:36:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:36:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:36:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:36:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:36:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:38:56,833 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:38:56,834 INFO L299 CfgBuilder]: Removed 12232 assume(true) statements. [2020-12-22 14:38:56,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:38:56 BoogieIcfgContainer [2020-12-22 14:38:56,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:38:56,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:38:56,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:38:56,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:38:56,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:36:18" (1/3) ... [2020-12-22 14:38:56,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ac0d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:38:56, skipping insertion in model container [2020-12-22 14:38:56,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:22" (2/3) ... [2020-12-22 14:38:56,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ac0d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:38:56, skipping insertion in model container [2020-12-22 14:38:56,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:38:56" (3/3) ... [2020-12-22 14:38:56,865 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--3w-9xxx.ko-entry_point.cil.out.i [2020-12-22 14:38:56,872 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:38:56,885 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-12-22 14:38:56,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-12-22 14:38:57,050 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:38:57,050 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:38:57,050 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:38:57,050 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:38:57,051 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:38:57,051 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:38:57,051 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:38:57,051 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:38:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 20667 states. [2020-12-22 14:38:57,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 14:38:57,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:38:57,284 INFO L422 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] [2020-12-22 14:38:57,285 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:38:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:38:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash -190751689, now seen corresponding path program 1 times [2020-12-22 14:38:57,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:38:57,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797692679] [2020-12-22 14:38:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:38:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:38:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:38:58,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797692679] [2020-12-22 14:38:58,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:38:58,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:38:58,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637991867] [2020-12-22 14:38:58,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:38:58,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:38:58,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:38:58,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:38:58,461 INFO L87 Difference]: Start difference. First operand 20667 states. Second operand 2 states. [2020-12-22 14:38:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:38:59,668 INFO L93 Difference]: Finished difference Result 41330 states and 61181 transitions. [2020-12-22 14:38:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:38:59,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 64 [2020-12-22 14:38:59,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:38:59,828 INFO L225 Difference]: With dead ends: 41330 [2020-12-22 14:38:59,829 INFO L226 Difference]: Without dead ends: 20647 [2020-12-22 14:38:59,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:38:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20647 states. [2020-12-22 14:39:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20647 to 20647. [2020-12-22 14:39:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20647 states. [2020-12-22 14:39:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20647 states to 20647 states and 30495 transitions. [2020-12-22 14:39:00,947 INFO L78 Accepts]: Start accepts. Automaton has 20647 states and 30495 transitions. Word has length 64 [2020-12-22 14:39:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:00,948 INFO L481 AbstractCegarLoop]: Abstraction has 20647 states and 30495 transitions. [2020-12-22 14:39:00,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:39:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 20647 states and 30495 transitions. [2020-12-22 14:39:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 14:39:00,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:00,952 INFO L422 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] [2020-12-22 14:39:00,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:39:00,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 718172739, now seen corresponding path program 1 times [2020-12-22 14:39:00,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:00,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324210632] [2020-12-22 14:39:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:01,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324210632] [2020-12-22 14:39:01,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:01,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:39:01,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650861178] [2020-12-22 14:39:01,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:01,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:01,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:01,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:01,759 INFO L87 Difference]: Start difference. First operand 20647 states and 30495 transitions. Second operand 3 states. [2020-12-22 14:39:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:39:03,551 INFO L93 Difference]: Finished difference Result 57628 states and 85213 transitions. [2020-12-22 14:39:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:39:03,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 14:39:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:39:03,982 INFO L225 Difference]: With dead ends: 57628 [2020-12-22 14:39:03,982 INFO L226 Difference]: Without dead ends: 37033 [2020-12-22 14:39:04,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:04,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37033 states. [2020-12-22 14:39:05,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37033 to 35875. [2020-12-22 14:39:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35875 states. [2020-12-22 14:39:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35875 states to 35875 states and 53093 transitions. [2020-12-22 14:39:05,270 INFO L78 Accepts]: Start accepts. Automaton has 35875 states and 53093 transitions. Word has length 64 [2020-12-22 14:39:05,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:05,272 INFO L481 AbstractCegarLoop]: Abstraction has 35875 states and 53093 transitions. [2020-12-22 14:39:05,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:39:05,273 INFO L276 IsEmpty]: Start isEmpty. Operand 35875 states and 53093 transitions. [2020-12-22 14:39:05,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 14:39:05,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:05,283 INFO L422 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] [2020-12-22 14:39:05,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:39:05,286 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:05,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:05,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1705378750, now seen corresponding path program 1 times [2020-12-22 14:39:05,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:05,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816605180] [2020-12-22 14:39:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:06,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816605180] [2020-12-22 14:39:06,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:06,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:39:06,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056822900] [2020-12-22 14:39:06,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:06,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:06,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:06,337 INFO L87 Difference]: Start difference. First operand 35875 states and 53093 transitions. Second operand 3 states. [2020-12-22 14:39:10,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:39:10,466 INFO L93 Difference]: Finished difference Result 107486 states and 159125 transitions. [2020-12-22 14:39:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:39:10,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 14:39:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:39:10,723 INFO L225 Difference]: With dead ends: 107486 [2020-12-22 14:39:10,723 INFO L226 Difference]: Without dead ends: 71663 [2020-12-22 14:39:10,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:10,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71663 states. [2020-12-22 14:39:12,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71663 to 71651. [2020-12-22 14:39:12,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71651 states. [2020-12-22 14:39:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71651 states to 71651 states and 106079 transitions. [2020-12-22 14:39:13,109 INFO L78 Accepts]: Start accepts. Automaton has 71651 states and 106079 transitions. Word has length 64 [2020-12-22 14:39:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:13,110 INFO L481 AbstractCegarLoop]: Abstraction has 71651 states and 106079 transitions. [2020-12-22 14:39:13,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:39:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 71651 states and 106079 transitions. [2020-12-22 14:39:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 14:39:13,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:13,112 INFO L422 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] [2020-12-22 14:39:13,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:39:13,113 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:13,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:13,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1882764130, now seen corresponding path program 1 times [2020-12-22 14:39:13,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:13,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508042626] [2020-12-22 14:39:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:13,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508042626] [2020-12-22 14:39:13,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:13,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:39:13,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588457587] [2020-12-22 14:39:13,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:13,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:13,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:13,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:13,733 INFO L87 Difference]: Start difference. First operand 71651 states and 106079 transitions. Second operand 3 states. [2020-12-22 14:39:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:39:17,007 INFO L93 Difference]: Finished difference Result 211799 states and 313615 transitions. [2020-12-22 14:39:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:39:17,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-22 14:39:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:39:17,554 INFO L225 Difference]: With dead ends: 211799 [2020-12-22 14:39:17,555 INFO L226 Difference]: Without dead ends: 140200 [2020-12-22 14:39:17,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:18,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140200 states. [2020-12-22 14:39:21,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140200 to 137565. [2020-12-22 14:39:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137565 states. [2020-12-22 14:39:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137565 states to 137565 states and 203711 transitions. [2020-12-22 14:39:22,156 INFO L78 Accepts]: Start accepts. Automaton has 137565 states and 203711 transitions. Word has length 69 [2020-12-22 14:39:22,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:22,162 INFO L481 AbstractCegarLoop]: Abstraction has 137565 states and 203711 transitions. [2020-12-22 14:39:22,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:39:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 137565 states and 203711 transitions. [2020-12-22 14:39:22,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 14:39:22,164 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:22,165 INFO L422 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] [2020-12-22 14:39:22,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:39:22,165 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:22,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1473040866, now seen corresponding path program 1 times [2020-12-22 14:39:22,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:22,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019579134] [2020-12-22 14:39:22,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:23,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019579134] [2020-12-22 14:39:23,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:23,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:39:23,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525542166] [2020-12-22 14:39:23,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:23,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:23,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:23,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:23,279 INFO L87 Difference]: Start difference. First operand 137565 states and 203711 transitions. Second operand 3 states. [2020-12-22 14:39:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:39:25,256 INFO L93 Difference]: Finished difference Result 137565 states and 203711 transitions. [2020-12-22 14:39:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:39:25,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-12-22 14:39:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:39:25,562 INFO L225 Difference]: With dead ends: 137565 [2020-12-22 14:39:25,562 INFO L226 Difference]: Without dead ends: 137563 [2020-12-22 14:39:25,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137563 states. [2020-12-22 14:39:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137563 to 137563. [2020-12-22 14:39:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137563 states. [2020-12-22 14:39:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137563 states to 137563 states and 203709 transitions. [2020-12-22 14:39:29,033 INFO L78 Accepts]: Start accepts. Automaton has 137563 states and 203709 transitions. Word has length 73 [2020-12-22 14:39:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:29,034 INFO L481 AbstractCegarLoop]: Abstraction has 137563 states and 203709 transitions. [2020-12-22 14:39:29,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:39:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 137563 states and 203709 transitions. [2020-12-22 14:39:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 14:39:29,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:29,036 INFO L422 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] [2020-12-22 14:39:29,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:39:29,036 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1580455111, now seen corresponding path program 1 times [2020-12-22 14:39:29,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:29,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125634232] [2020-12-22 14:39:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:29,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125634232] [2020-12-22 14:39:29,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:29,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:39:29,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445042680] [2020-12-22 14:39:29,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:29,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:29,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:29,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:29,931 INFO L87 Difference]: Start difference. First operand 137563 states and 203709 transitions. Second operand 3 states. [2020-12-22 14:39:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:39:35,346 INFO L93 Difference]: Finished difference Result 407388 states and 603309 transitions. [2020-12-22 14:39:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:39:35,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-12-22 14:39:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:39:35,794 INFO L225 Difference]: With dead ends: 407388 [2020-12-22 14:39:35,794 INFO L226 Difference]: Without dead ends: 269877 [2020-12-22 14:39:35,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269877 states. [2020-12-22 14:39:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269877 to 265946. [2020-12-22 14:39:41,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265946 states. [2020-12-22 14:39:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265946 states to 265946 states and 393794 transitions. [2020-12-22 14:39:42,063 INFO L78 Accepts]: Start accepts. Automaton has 265946 states and 393794 transitions. Word has length 74 [2020-12-22 14:39:42,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:39:42,065 INFO L481 AbstractCegarLoop]: Abstraction has 265946 states and 393794 transitions. [2020-12-22 14:39:42,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:39:42,065 INFO L276 IsEmpty]: Start isEmpty. Operand 265946 states and 393794 transitions. [2020-12-22 14:39:42,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 14:39:42,075 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:39:42,075 INFO L422 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] [2020-12-22 14:39:42,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:39:42,076 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:39:42,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:39:42,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1749549896, now seen corresponding path program 1 times [2020-12-22 14:39:42,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:39:42,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449030334] [2020-12-22 14:39:42,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:39:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:39:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:39:42,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449030334] [2020-12-22 14:39:42,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:39:42,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:39:42,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354422326] [2020-12-22 14:39:42,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:39:42,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:39:42,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:39:42,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:39:42,688 INFO L87 Difference]: Start difference. First operand 265946 states and 393794 transitions. Second operand 3 states.