/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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:22:50,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:22:50,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:22:50,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:22:50,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:22:50,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:22:50,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:22:50,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:22:50,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:22:50,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:22:50,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:22:50,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:22:50,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:22:50,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:22:50,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:22:50,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:22:50,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:22:50,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:22:50,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:22:50,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:22:50,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:22:50,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:22:50,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:22:50,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:22:50,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 12:22:50,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 12:22:50,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 12:22:50,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 12:22:50,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 12:22:50,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 12:22:50,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:22:50,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:22:50,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:22:50,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:22:50,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:22:50,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:22:50,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:22:50,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:22:50,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:22:50,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:22:50,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:22:50,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:22:50,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:22:50,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:22:50,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:22:50,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:22:50,922 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:22:50,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:22:50,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:22:50,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:22:50,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:22:50,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:22:50,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:22:50,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:22:50,924 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:22:50,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:22:50,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:22:50,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:22:50,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:22:50,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:22:50,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:22:50,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:22:50,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:22:50,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:22:50,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:22:50,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:22:50,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:22:50,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:22:51,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:22:51,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:22:51,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:22:51,306 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:22:51,307 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:22:51,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2020-12-22 12:22:51,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7780ba332/57ecce86abd54e4fac87db878be620d3/FLAGb5add949a [2020-12-22 12:22:52,262 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:22:52,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2020-12-22 12:22:52,303 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7780ba332/57ecce86abd54e4fac87db878be620d3/FLAGb5add949a [2020-12-22 12:22:52,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7780ba332/57ecce86abd54e4fac87db878be620d3 [2020-12-22 12:22:52,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:22:52,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:22:52,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:22:52,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:22:52,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:22:52,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:22:52" (1/1) ... [2020-12-22 12:22:52,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6688acd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:52, skipping insertion in model container [2020-12-22 12:22:52,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:22:52" (1/1) ... [2020-12-22 12:22:52,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:22:52,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:22:54,371 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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2020-12-22 12:22:54,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:22:54,436 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:22:54,744 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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2020-12-22 12:22:54,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:22:54,960 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:22:54,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54 WrapperNode [2020-12-22 12:22:54,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:22:54,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:22:54,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:22:54,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:22:55,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:55,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:22:56,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:22:56,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:22:56,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:22:56,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:56,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:57,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (1/1) ... [2020-12-22 12:22:57,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:22:57,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:22:57,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:22:57,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:22:57,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (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 12:22:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:22:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:22:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:22:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:22:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:22:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:22:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:22:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:22:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:22:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:22:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:22:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:22:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:22:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 12:22:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:22:57,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:23:28,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:23:28,681 INFO L299 CfgBuilder]: Removed 3175 assume(true) statements. [2020-12-22 12:23:28,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:23:28 BoogieIcfgContainer [2020-12-22 12:23:28,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:23:28,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:23:28,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:23:28,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:23:28,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:22:52" (1/3) ... [2020-12-22 12:23:28,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359dea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:23:28, skipping insertion in model container [2020-12-22 12:23:28,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:22:54" (2/3) ... [2020-12-22 12:23:28,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359dea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:23:28, skipping insertion in model container [2020-12-22 12:23:28,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:23:28" (3/3) ... [2020-12-22 12:23:28,697 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2020-12-22 12:23:28,703 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:23:28,721 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-22 12:23:28,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 12:23:28,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:23:28,783 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:23:28,783 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:23:28,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:23:28,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:23:28,784 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:23:28,784 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:23:28,784 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:23:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states. [2020-12-22 12:23:28,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-22 12:23:28,899 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:23:28,900 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] [2020-12-22 12:23:28,902 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:23:28,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:23:28,907 INFO L82 PathProgramCache]: Analyzing trace with hash -191622153, now seen corresponding path program 1 times [2020-12-22 12:23:28,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:23:28,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159159261] [2020-12-22 12:23:28,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:23:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:23:29,567 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 12:23:29,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159159261] [2020-12-22 12:23:29,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:23:29,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:23:29,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858419536] [2020-12-22 12:23:29,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:23:29,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:23:29,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:23:29,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:23:29,591 INFO L87 Difference]: Start difference. First operand 4627 states. Second operand 4 states. [2020-12-22 12:23:30,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:23:30,291 INFO L93 Difference]: Finished difference Result 13844 states and 20875 transitions. [2020-12-22 12:23:30,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 12:23:30,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-12-22 12:23:30,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:23:30,377 INFO L225 Difference]: With dead ends: 13844 [2020-12-22 12:23:30,377 INFO L226 Difference]: Without dead ends: 9176 [2020-12-22 12:23:30,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:23:30,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9176 states. [2020-12-22 12:23:30,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9176 to 4608. [2020-12-22 12:23:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4608 states. [2020-12-22 12:23:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 6922 transitions. [2020-12-22 12:23:30,649 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 6922 transitions. Word has length 44 [2020-12-22 12:23:30,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:23:30,650 INFO L481 AbstractCegarLoop]: Abstraction has 4608 states and 6922 transitions. [2020-12-22 12:23:30,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:23:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 6922 transitions. [2020-12-22 12:23:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 12:23:30,653 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:23:30,653 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] [2020-12-22 12:23:30,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:23:30,654 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:23:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:23:30,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1828591561, now seen corresponding path program 1 times [2020-12-22 12:23:30,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:23:30,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612453028] [2020-12-22 12:23:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:23:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:23:30,904 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 12:23:30,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612453028] [2020-12-22 12:23:30,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:23:30,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:23:30,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288050137] [2020-12-22 12:23:30,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:23:30,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:23:30,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:23:30,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:23:30,908 INFO L87 Difference]: Start difference. First operand 4608 states and 6922 transitions. Second operand 4 states. [2020-12-22 12:23:31,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:23:31,331 INFO L93 Difference]: Finished difference Result 13765 states and 20697 transitions. [2020-12-22 12:23:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 12:23:31,332 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-12-22 12:23:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:23:31,378 INFO L225 Difference]: With dead ends: 13765 [2020-12-22 12:23:31,378 INFO L226 Difference]: Without dead ends: 9174 [2020-12-22 12:23:31,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:23:31,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9174 states. [2020-12-22 12:23:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9174 to 4608. [2020-12-22 12:23:31,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4608 states. [2020-12-22 12:23:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 6921 transitions. [2020-12-22 12:23:31,561 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 6921 transitions. Word has length 47 [2020-12-22 12:23:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:23:31,563 INFO L481 AbstractCegarLoop]: Abstraction has 4608 states and 6921 transitions. [2020-12-22 12:23:31,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:23:31,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 6921 transitions. [2020-12-22 12:23:31,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 12:23:31,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:23:31,568 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] [2020-12-22 12:23:31,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:23:31,568 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:23:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:23:31,571 INFO L82 PathProgramCache]: Analyzing trace with hash -243861356, now seen corresponding path program 1 times [2020-12-22 12:23:31,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:23:31,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940584744] [2020-12-22 12:23:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:23:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:23:32,005 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 12:23:32,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940584744] [2020-12-22 12:23:32,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:23:32,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:23:32,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500848344] [2020-12-22 12:23:32,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:23:32,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:23:32,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:23:32,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:23:32,019 INFO L87 Difference]: Start difference. First operand 4608 states and 6921 transitions. Second operand 5 states. [2020-12-22 12:23:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:23:50,501 INFO L93 Difference]: Finished difference Result 9605 states and 14392 transitions. [2020-12-22 12:23:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 12:23:50,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-12-22 12:23:50,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:23:50,535 INFO L225 Difference]: With dead ends: 9605 [2020-12-22 12:23:50,536 INFO L226 Difference]: Without dead ends: 5036 [2020-12-22 12:23:50,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:23:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5036 states. [2020-12-22 12:23:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5036 to 4612. [2020-12-22 12:23:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4612 states. [2020-12-22 12:23:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 6926 transitions. [2020-12-22 12:23:50,687 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 6926 transitions. Word has length 50 [2020-12-22 12:23:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:23:50,687 INFO L481 AbstractCegarLoop]: Abstraction has 4612 states and 6926 transitions. [2020-12-22 12:23:50,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:23:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 6926 transitions. [2020-12-22 12:23:50,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:23:50,691 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:23:50,691 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] [2020-12-22 12:23:50,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:23:50,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:23:50,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:23:50,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1472015336, now seen corresponding path program 1 times [2020-12-22 12:23:50,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:23:50,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817615761] [2020-12-22 12:23:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:23:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:23:51,088 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 12:23:51,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817615761] [2020-12-22 12:23:51,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:23:51,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:23:51,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580292287] [2020-12-22 12:23:51,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:23:51,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:23:51,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:23:51,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:23:51,091 INFO L87 Difference]: Start difference. First operand 4612 states and 6926 transitions. Second operand 6 states. [2020-12-22 12:24:49,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:24:49,871 INFO L93 Difference]: Finished difference Result 14248 states and 21378 transitions. [2020-12-22 12:24:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 12:24:49,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-12-22 12:24:49,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:24:49,915 INFO L225 Difference]: With dead ends: 14248 [2020-12-22 12:24:49,916 INFO L226 Difference]: Without dead ends: 9675 [2020-12-22 12:24:49,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:24:49,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2020-12-22 12:24:50,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 4613. [2020-12-22 12:24:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4613 states. [2020-12-22 12:24:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4613 states to 4613 states and 6927 transitions. [2020-12-22 12:24:50,061 INFO L78 Accepts]: Start accepts. Automaton has 4613 states and 6927 transitions. Word has length 51 [2020-12-22 12:24:50,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:24:50,062 INFO L481 AbstractCegarLoop]: Abstraction has 4613 states and 6927 transitions. [2020-12-22 12:24:50,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:24:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4613 states and 6927 transitions. [2020-12-22 12:24:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:24:50,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:24:50,065 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] [2020-12-22 12:24:50,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:24:50,065 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:24:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:24:50,066 INFO L82 PathProgramCache]: Analyzing trace with hash -371082973, now seen corresponding path program 1 times [2020-12-22 12:24:50,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:24:50,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932588667] [2020-12-22 12:24:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:24:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:24:50,370 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 12:24:50,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932588667] [2020-12-22 12:24:50,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:24:50,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:24:50,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285113023] [2020-12-22 12:24:50,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:24:50,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:24:50,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:24:50,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:24:50,374 INFO L87 Difference]: Start difference. First operand 4613 states and 6927 transitions. Second operand 6 states. [2020-12-22 12:25:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:42,214 INFO L93 Difference]: Finished difference Result 10235 states and 15242 transitions. [2020-12-22 12:25:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 12:25:42,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-12-22 12:25:42,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:42,227 INFO L225 Difference]: With dead ends: 10235 [2020-12-22 12:25:42,228 INFO L226 Difference]: Without dead ends: 5661 [2020-12-22 12:25:42,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-22 12:25:42,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5661 states. [2020-12-22 12:25:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5661 to 4617. [2020-12-22 12:25:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4617 states. [2020-12-22 12:25:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4617 states to 4617 states and 6932 transitions. [2020-12-22 12:25:42,337 INFO L78 Accepts]: Start accepts. Automaton has 4617 states and 6932 transitions. Word has length 51 [2020-12-22 12:25:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:42,337 INFO L481 AbstractCegarLoop]: Abstraction has 4617 states and 6932 transitions. [2020-12-22 12:25:42,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:25:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4617 states and 6932 transitions. [2020-12-22 12:25:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 12:25:42,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:42,340 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] [2020-12-22 12:25:42,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:25:42,340 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:42,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:42,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1082488087, now seen corresponding path program 1 times [2020-12-22 12:25:42,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:42,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679639530] [2020-12-22 12:25:42,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:42,496 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 12:25:42,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679639530] [2020-12-22 12:25:42,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:42,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:42,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528462523] [2020-12-22 12:25:42,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:42,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:42,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:42,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:42,499 INFO L87 Difference]: Start difference. First operand 4617 states and 6932 transitions. Second operand 3 states. [2020-12-22 12:25:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:42,687 INFO L93 Difference]: Finished difference Result 8941 states and 13475 transitions. [2020-12-22 12:25:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:42,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 12:25:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:42,711 INFO L225 Difference]: With dead ends: 8941 [2020-12-22 12:25:42,711 INFO L226 Difference]: Without dead ends: 8929 [2020-12-22 12:25:42,715 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 12:25:42,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2020-12-22 12:25:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 4605. [2020-12-22 12:25:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4605 states. [2020-12-22 12:25:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 6920 transitions. [2020-12-22 12:25:42,835 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 6920 transitions. Word has length 51 [2020-12-22 12:25:42,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:42,836 INFO L481 AbstractCegarLoop]: Abstraction has 4605 states and 6920 transitions. [2020-12-22 12:25:42,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:42,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 6920 transitions. [2020-12-22 12:25:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 12:25:42,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:42,839 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] [2020-12-22 12:25:42,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:25:42,839 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1823112505, now seen corresponding path program 1 times [2020-12-22 12:25:42,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:42,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798335828] [2020-12-22 12:25:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:43,145 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 12:25:43,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798335828] [2020-12-22 12:25:43,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:43,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 12:25:43,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979000712] [2020-12-22 12:25:43,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 12:25:43,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:43,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 12:25:43,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 12:25:43,149 INFO L87 Difference]: Start difference. First operand 4605 states and 6920 transitions. Second operand 7 states.