/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--char--lp.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 14:15:36,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 14:15:36,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 14:15:36,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 14:15:36,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 14:15:36,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 14:15:36,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 14:15:36,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 14:15:36,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 14:15:36,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 14:15:36,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 14:15:36,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 14:15:36,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 14:15:36,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 14:15:36,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 14:15:36,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 14:15:36,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 14:15:36,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 14:15:36,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 14:15:36,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 14:15:36,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 14:15:36,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 14:15:36,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 14:15:36,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 14:15:36,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 14:15:36,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 14:15:36,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 14:15:36,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 14:15:36,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 14:15:36,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 14:15:36,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 14:15:36,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 14:15:36,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 14:15:36,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 14:15:36,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 14:15:36,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 14:15:36,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 14:15:36,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 14:15:36,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 14:15:36,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 14:15:36,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 14:15:36,179 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 14:15:36,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 14:15:36,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 14:15:36,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 14:15:36,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 14:15:36,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 14:15:36,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 14:15:36,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 14:15:36,181 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 14:15:36,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 14:15:36,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 14:15:36,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 14:15:36,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 14:15:36,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 14:15:36,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 14:15:36,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 14:15:36,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 14:15:36,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 14:15:36,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 14:15:36,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 14:15:36,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 14:15:36,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 14:15:36,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 14:15:36,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 14:15:36,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 14:15:36,614 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 14:15:36,615 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 14:15:36,616 INFO L432 ainManager$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--char--lp.ko-entry_point.cil.out.i [2020-12-22 14:15:36,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec65e3d/f53cb0ebd06f45849d2cdc677cae0f29/FLAGdbc40b657 [2020-12-22 14:15:37,733 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 14:15:37,736 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--char--lp.ko-entry_point.cil.out.i [2020-12-22 14:15:37,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec65e3d/f53cb0ebd06f45849d2cdc677cae0f29/FLAGdbc40b657 [2020-12-22 14:15:38,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ec65e3d/f53cb0ebd06f45849d2cdc677cae0f29 [2020-12-22 14:15:38,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 14:15:38,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 14:15:38,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 14:15:38,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 14:15:38,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 14:15:38,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:15:38" (1/1) ... [2020-12-22 14:15:38,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603f6606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:38, skipping insertion in model container [2020-12-22 14:15:38,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:15:38" (1/1) ... [2020-12-22 14:15:38,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 14:15:38,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 14:15:40,143 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--char--lp.ko-entry_point.cil.out.i[147706,147719] [2020-12-22 14:15:40,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:15:40,399 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 14:15:40,748 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--char--lp.ko-entry_point.cil.out.i[147706,147719] [2020-12-22 14:15:40,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 14:15:41,076 INFO L208 MainTranslator]: Completed translation [2020-12-22 14:15:41,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41 WrapperNode [2020-12-22 14:15:41,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 14:15:41,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 14:15:41,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 14:15:41,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 14:15:41,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 14:15:41,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 14:15:41,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 14:15:41,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 14:15:41,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (1/1) ... [2020-12-22 14:15:41,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 14:15:41,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 14:15:41,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 14:15:41,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 14:15:41,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (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 14:15:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2020-12-22 14:15:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 14:15:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 14:15:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 14:15:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 14:15:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 14:15:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 14:15:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 14:15:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2020-12-22 14:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 14:15:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 14:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 14:15:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 14:15:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 14:15:47,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 14:15:47,580 INFO L299 CfgBuilder]: Removed 1183 assume(true) statements. [2020-12-22 14:15:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:15:47 BoogieIcfgContainer [2020-12-22 14:15:47,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 14:15:47,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 14:15:47,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 14:15:47,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 14:15:47,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:15:38" (1/3) ... [2020-12-22 14:15:47,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b3d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:15:47, skipping insertion in model container [2020-12-22 14:15:47,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:15:41" (2/3) ... [2020-12-22 14:15:47,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b3d092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:15:47, skipping insertion in model container [2020-12-22 14:15:47,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:15:47" (3/3) ... [2020-12-22 14:15:47,596 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2020-12-22 14:15:47,605 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 14:15:47,614 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-12-22 14:15:47,635 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-12-22 14:15:47,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 14:15:47,674 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 14:15:47,674 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 14:15:47,674 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 14:15:47,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 14:15:47,674 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 14:15:47,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 14:15:47,675 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 14:15:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states. [2020-12-22 14:15:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 14:15:47,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:47,734 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] [2020-12-22 14:15:47,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:47,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:47,744 INFO L82 PathProgramCache]: Analyzing trace with hash -921687816, now seen corresponding path program 1 times [2020-12-22 14:15:47,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:47,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852442871] [2020-12-22 14:15:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:48,456 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 14:15:48,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852442871] [2020-12-22 14:15:48,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:48,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:48,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875619042] [2020-12-22 14:15:48,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 14:15:48,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:48,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 14:15:48,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 14:15:48,484 INFO L87 Difference]: Start difference. First operand 1215 states. Second operand 2 states. [2020-12-22 14:15:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:48,638 INFO L93 Difference]: Finished difference Result 2426 states and 3403 transitions. [2020-12-22 14:15:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 14:15:48,640 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 68 [2020-12-22 14:15:48,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:48,674 INFO L225 Difference]: With dead ends: 2426 [2020-12-22 14:15:48,674 INFO L226 Difference]: Without dead ends: 1206 [2020-12-22 14:15:48,688 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 14:15:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-12-22 14:15:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2020-12-22 14:15:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1206 states. [2020-12-22 14:15:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1652 transitions. [2020-12-22 14:15:48,935 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1652 transitions. Word has length 68 [2020-12-22 14:15:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:48,935 INFO L481 AbstractCegarLoop]: Abstraction has 1206 states and 1652 transitions. [2020-12-22 14:15:48,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 14:15:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1652 transitions. [2020-12-22 14:15:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 14:15:48,948 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:48,949 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] [2020-12-22 14:15:48,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 14:15:48,949 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:48,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:48,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1043006210, now seen corresponding path program 1 times [2020-12-22 14:15:48,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:48,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165646658] [2020-12-22 14:15:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:49,325 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 14:15:49,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165646658] [2020-12-22 14:15:49,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:49,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:15:49,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472964013] [2020-12-22 14:15:49,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:49,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:49,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:49,329 INFO L87 Difference]: Start difference. First operand 1206 states and 1652 transitions. Second operand 3 states. [2020-12-22 14:15:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:49,484 INFO L93 Difference]: Finished difference Result 2553 states and 3512 transitions. [2020-12-22 14:15:49,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:49,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-22 14:15:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:49,495 INFO L225 Difference]: With dead ends: 2553 [2020-12-22 14:15:49,495 INFO L226 Difference]: Without dead ends: 1401 [2020-12-22 14:15:49,499 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 14:15:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2020-12-22 14:15:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1376. [2020-12-22 14:15:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-12-22 14:15:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1897 transitions. [2020-12-22 14:15:49,549 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1897 transitions. Word has length 68 [2020-12-22 14:15:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:49,549 INFO L481 AbstractCegarLoop]: Abstraction has 1376 states and 1897 transitions. [2020-12-22 14:15:49,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:49,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1897 transitions. [2020-12-22 14:15:49,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 14:15:49,551 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:49,551 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] [2020-12-22 14:15:49,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 14:15:49,552 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:49,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:49,552 INFO L82 PathProgramCache]: Analyzing trace with hash -227303090, now seen corresponding path program 1 times [2020-12-22 14:15:49,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:49,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391073596] [2020-12-22 14:15:49,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:49,750 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 14:15:49,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391073596] [2020-12-22 14:15:49,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:49,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:15:49,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178187524] [2020-12-22 14:15:49,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:49,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:49,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:49,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:49,753 INFO L87 Difference]: Start difference. First operand 1376 states and 1897 transitions. Second operand 3 states. [2020-12-22 14:15:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:50,555 INFO L93 Difference]: Finished difference Result 3917 states and 5439 transitions. [2020-12-22 14:15:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:50,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-22 14:15:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:50,573 INFO L225 Difference]: With dead ends: 3917 [2020-12-22 14:15:50,573 INFO L226 Difference]: Without dead ends: 2595 [2020-12-22 14:15:50,578 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 14:15:50,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2020-12-22 14:15:50,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2563. [2020-12-22 14:15:50,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2563 states. [2020-12-22 14:15:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 3583 transitions. [2020-12-22 14:15:50,673 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 3583 transitions. Word has length 68 [2020-12-22 14:15:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:50,674 INFO L481 AbstractCegarLoop]: Abstraction has 2563 states and 3583 transitions. [2020-12-22 14:15:50,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 3583 transitions. [2020-12-22 14:15:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 14:15:50,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:50,675 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] [2020-12-22 14:15:50,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 14:15:50,676 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:50,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1586812280, now seen corresponding path program 1 times [2020-12-22 14:15:50,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:50,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356925670] [2020-12-22 14:15:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:50,890 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 14:15:50,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356925670] [2020-12-22 14:15:50,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:50,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:15:50,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128659827] [2020-12-22 14:15:50,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:15:50,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:50,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:15:50,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:15:50,893 INFO L87 Difference]: Start difference. First operand 2563 states and 3583 transitions. Second operand 5 states. [2020-12-22 14:15:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:51,460 INFO L93 Difference]: Finished difference Result 8825 states and 12349 transitions. [2020-12-22 14:15:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 14:15:51,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2020-12-22 14:15:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:51,504 INFO L225 Difference]: With dead ends: 8825 [2020-12-22 14:15:51,504 INFO L226 Difference]: Without dead ends: 6316 [2020-12-22 14:15:51,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:15:51,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2020-12-22 14:15:51,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 2569. [2020-12-22 14:15:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-12-22 14:15:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 3587 transitions. [2020-12-22 14:15:51,713 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 3587 transitions. Word has length 70 [2020-12-22 14:15:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:51,714 INFO L481 AbstractCegarLoop]: Abstraction has 2569 states and 3587 transitions. [2020-12-22 14:15:51,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:15:51,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 3587 transitions. [2020-12-22 14:15:51,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 14:15:51,716 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:51,716 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 14:15:51,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 14:15:51,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:51,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:51,717 INFO L82 PathProgramCache]: Analyzing trace with hash 277133400, now seen corresponding path program 1 times [2020-12-22 14:15:51,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:51,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185854861] [2020-12-22 14:15:51,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:52,025 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 14:15:52,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185854861] [2020-12-22 14:15:52,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:52,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:52,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151382009] [2020-12-22 14:15:52,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:52,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:52,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:52,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:52,028 INFO L87 Difference]: Start difference. First operand 2569 states and 3587 transitions. Second operand 3 states. [2020-12-22 14:15:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:52,154 INFO L93 Difference]: Finished difference Result 2569 states and 3587 transitions. [2020-12-22 14:15:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:52,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-12-22 14:15:52,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:52,171 INFO L225 Difference]: With dead ends: 2569 [2020-12-22 14:15:52,171 INFO L226 Difference]: Without dead ends: 2567 [2020-12-22 14:15:52,173 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 14:15:52,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2020-12-22 14:15:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2567. [2020-12-22 14:15:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2567 states. [2020-12-22 14:15:52,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 3585 transitions. [2020-12-22 14:15:52,335 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 3585 transitions. Word has length 75 [2020-12-22 14:15:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:52,336 INFO L481 AbstractCegarLoop]: Abstraction has 2567 states and 3585 transitions. [2020-12-22 14:15:52,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 3585 transitions. [2020-12-22 14:15:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 14:15:52,338 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:52,339 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, 1] [2020-12-22 14:15:52,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 14:15:52,340 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:52,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:52,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1210867, now seen corresponding path program 1 times [2020-12-22 14:15:52,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:52,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444704424] [2020-12-22 14:15:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:52,726 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 14:15:52,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444704424] [2020-12-22 14:15:52,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:52,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:52,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126949697] [2020-12-22 14:15:52,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:52,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:52,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:52,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:52,729 INFO L87 Difference]: Start difference. First operand 2567 states and 3585 transitions. Second operand 3 states. [2020-12-22 14:15:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:52,867 INFO L93 Difference]: Finished difference Result 2567 states and 3585 transitions. [2020-12-22 14:15:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:52,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 14:15:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:52,881 INFO L225 Difference]: With dead ends: 2567 [2020-12-22 14:15:52,882 INFO L226 Difference]: Without dead ends: 2565 [2020-12-22 14:15:52,883 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 14:15:52,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2020-12-22 14:15:53,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2565. [2020-12-22 14:15:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2565 states. [2020-12-22 14:15:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 3583 transitions. [2020-12-22 14:15:53,049 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 3583 transitions. Word has length 76 [2020-12-22 14:15:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:53,055 INFO L481 AbstractCegarLoop]: Abstraction has 2565 states and 3583 transitions. [2020-12-22 14:15:53,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:53,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 3583 transitions. [2020-12-22 14:15:53,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 14:15:53,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:53,063 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, 1, 1] [2020-12-22 14:15:53,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 14:15:53,064 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:53,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:53,065 INFO L82 PathProgramCache]: Analyzing trace with hash 37546946, now seen corresponding path program 1 times [2020-12-22 14:15:53,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:53,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105781872] [2020-12-22 14:15:53,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:53,321 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 14:15:53,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105781872] [2020-12-22 14:15:53,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:53,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:53,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604694275] [2020-12-22 14:15:53,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:53,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:53,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:53,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:53,324 INFO L87 Difference]: Start difference. First operand 2565 states and 3583 transitions. Second operand 3 states. [2020-12-22 14:15:53,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:53,488 INFO L93 Difference]: Finished difference Result 2565 states and 3583 transitions. [2020-12-22 14:15:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:53,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-12-22 14:15:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:53,502 INFO L225 Difference]: With dead ends: 2565 [2020-12-22 14:15:53,503 INFO L226 Difference]: Without dead ends: 2557 [2020-12-22 14:15:53,505 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 14:15:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2020-12-22 14:15:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2557. [2020-12-22 14:15:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2557 states. [2020-12-22 14:15:53,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3572 transitions. [2020-12-22 14:15:53,720 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3572 transitions. Word has length 77 [2020-12-22 14:15:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:53,721 INFO L481 AbstractCegarLoop]: Abstraction has 2557 states and 3572 transitions. [2020-12-22 14:15:53,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:53,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3572 transitions. [2020-12-22 14:15:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 14:15:53,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:53,724 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, 1, 1, 1] [2020-12-22 14:15:53,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 14:15:53,725 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:53,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1163965405, now seen corresponding path program 1 times [2020-12-22 14:15:53,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:53,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348957816] [2020-12-22 14:15:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:53,992 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 14:15:53,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348957816] [2020-12-22 14:15:53,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:53,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:53,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808025415] [2020-12-22 14:15:53,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:53,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:53,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:53,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:53,996 INFO L87 Difference]: Start difference. First operand 2557 states and 3572 transitions. Second operand 3 states. [2020-12-22 14:15:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:54,180 INFO L93 Difference]: Finished difference Result 2557 states and 3572 transitions. [2020-12-22 14:15:54,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:54,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2020-12-22 14:15:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:54,194 INFO L225 Difference]: With dead ends: 2557 [2020-12-22 14:15:54,195 INFO L226 Difference]: Without dead ends: 2555 [2020-12-22 14:15:54,197 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 14:15:54,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2020-12-22 14:15:54,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2020-12-22 14:15:54,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2020-12-22 14:15:54,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3570 transitions. [2020-12-22 14:15:54,398 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3570 transitions. Word has length 78 [2020-12-22 14:15:54,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:54,398 INFO L481 AbstractCegarLoop]: Abstraction has 2555 states and 3570 transitions. [2020-12-22 14:15:54,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:54,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3570 transitions. [2020-12-22 14:15:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 14:15:54,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:54,400 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, 1, 1, 1, 1] [2020-12-22 14:15:54,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 14:15:54,401 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:54,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:54,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1723199276, now seen corresponding path program 1 times [2020-12-22 14:15:54,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:54,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410604036] [2020-12-22 14:15:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:54,664 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 14:15:54,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410604036] [2020-12-22 14:15:54,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:54,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 14:15:54,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919942695] [2020-12-22 14:15:54,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:54,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:54,667 INFO L87 Difference]: Start difference. First operand 2555 states and 3570 transitions. Second operand 3 states. [2020-12-22 14:15:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:55,122 INFO L93 Difference]: Finished difference Result 7457 states and 10472 transitions. [2020-12-22 14:15:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:55,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 14:15:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:55,151 INFO L225 Difference]: With dead ends: 7457 [2020-12-22 14:15:55,151 INFO L226 Difference]: Without dead ends: 4941 [2020-12-22 14:15:55,158 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 14:15:55,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4941 states. [2020-12-22 14:15:55,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4941 to 4372. [2020-12-22 14:15:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4372 states. [2020-12-22 14:15:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6129 transitions. [2020-12-22 14:15:55,496 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6129 transitions. Word has length 79 [2020-12-22 14:15:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:55,496 INFO L481 AbstractCegarLoop]: Abstraction has 4372 states and 6129 transitions. [2020-12-22 14:15:55,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6129 transitions. [2020-12-22 14:15:55,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 14:15:55,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:55,500 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:15:55,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 14:15:55,501 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:55,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1186138392, now seen corresponding path program 1 times [2020-12-22 14:15:55,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:55,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672398908] [2020-12-22 14:15:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:55,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:15:55,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672398908] [2020-12-22 14:15:55,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:15:55,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:15:55,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708940298] [2020-12-22 14:15:55,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:55,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:55,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:55,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:15:55,688 INFO L87 Difference]: Start difference. First operand 4372 states and 6129 transitions. Second operand 3 states. [2020-12-22 14:15:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:56,124 INFO L93 Difference]: Finished difference Result 8700 states and 12207 transitions. [2020-12-22 14:15:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:56,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 14:15:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:56,149 INFO L225 Difference]: With dead ends: 8700 [2020-12-22 14:15:56,149 INFO L226 Difference]: Without dead ends: 4382 [2020-12-22 14:15:56,165 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 14:15:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2020-12-22 14:15:56,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4374. [2020-12-22 14:15:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4374 states. [2020-12-22 14:15:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4374 states to 4374 states and 6131 transitions. [2020-12-22 14:15:56,435 INFO L78 Accepts]: Start accepts. Automaton has 4374 states and 6131 transitions. Word has length 102 [2020-12-22 14:15:56,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:56,435 INFO L481 AbstractCegarLoop]: Abstraction has 4374 states and 6131 transitions. [2020-12-22 14:15:56,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:56,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4374 states and 6131 transitions. [2020-12-22 14:15:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 14:15:56,439 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:56,439 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:15:56,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 14:15:56,440 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:56,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1727901557, now seen corresponding path program 1 times [2020-12-22 14:15:56,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:56,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637638935] [2020-12-22 14:15:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:56,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:15:56,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637638935] [2020-12-22 14:15:56,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513796748] [2020-12-22 14:15:56,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:15:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:57,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:15:57,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:15:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 14:15:57,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:15:57,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:15:57,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394517980] [2020-12-22 14:15:57,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:15:57,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:15:57,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:15:57,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:15:57,710 INFO L87 Difference]: Start difference. First operand 4374 states and 6131 transitions. Second operand 3 states. [2020-12-22 14:15:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:15:58,719 INFO L93 Difference]: Finished difference Result 7078 states and 9910 transitions. [2020-12-22 14:15:58,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:15:58,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-22 14:15:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:15:58,728 INFO L225 Difference]: With dead ends: 7078 [2020-12-22 14:15:58,728 INFO L226 Difference]: Without dead ends: 2756 [2020-12-22 14:15:58,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:15:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2020-12-22 14:15:58,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 2742. [2020-12-22 14:15:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2742 states. [2020-12-22 14:15:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 3823 transitions. [2020-12-22 14:15:58,922 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 3823 transitions. Word has length 107 [2020-12-22 14:15:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:15:58,923 INFO L481 AbstractCegarLoop]: Abstraction has 2742 states and 3823 transitions. [2020-12-22 14:15:58,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:15:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 3823 transitions. [2020-12-22 14:15:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 14:15:58,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:15:58,926 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:15:59,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-22 14:15:59,141 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:15:59,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:15:59,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1046594258, now seen corresponding path program 1 times [2020-12-22 14:15:59,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:15:59,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600456900] [2020-12-22 14:15:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:15:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:15:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:15:59,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600456900] [2020-12-22 14:15:59,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277782873] [2020-12-22 14:15:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:00,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:16:00,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:00,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 14:16:00,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:00,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:16:00,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218999113] [2020-12-22 14:16:00,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:00,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:00,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:00,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:00,357 INFO L87 Difference]: Start difference. First operand 2742 states and 3823 transitions. Second operand 3 states. [2020-12-22 14:16:01,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:01,323 INFO L93 Difference]: Finished difference Result 2742 states and 3823 transitions. [2020-12-22 14:16:01,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:01,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-22 14:16:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:01,333 INFO L225 Difference]: With dead ends: 2742 [2020-12-22 14:16:01,333 INFO L226 Difference]: Without dead ends: 2736 [2020-12-22 14:16:01,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:01,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2020-12-22 14:16:01,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2020-12-22 14:16:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2020-12-22 14:16:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3814 transitions. [2020-12-22 14:16:01,545 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3814 transitions. Word has length 111 [2020-12-22 14:16:01,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:01,545 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 3814 transitions. [2020-12-22 14:16:01,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3814 transitions. [2020-12-22 14:16:01,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-22 14:16:01,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:01,549 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:01,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 14:16:01,765 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:01,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:01,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2065458272, now seen corresponding path program 1 times [2020-12-22 14:16:01,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:01,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264328038] [2020-12-22 14:16:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:16:02,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264328038] [2020-12-22 14:16:02,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601916053] [2020-12-22 14:16:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:02,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 2156 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:16:02,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:02,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 14:16:02,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:02,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:16:02,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972403219] [2020-12-22 14:16:02,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:02,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:02,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:02,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:02,985 INFO L87 Difference]: Start difference. First operand 2736 states and 3814 transitions. Second operand 3 states. [2020-12-22 14:16:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:03,618 INFO L93 Difference]: Finished difference Result 5268 states and 7352 transitions. [2020-12-22 14:16:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:03,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-12-22 14:16:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:03,627 INFO L225 Difference]: With dead ends: 5268 [2020-12-22 14:16:03,627 INFO L226 Difference]: Without dead ends: 2736 [2020-12-22 14:16:03,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:03,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2020-12-22 14:16:03,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2020-12-22 14:16:03,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2020-12-22 14:16:03,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3804 transitions. [2020-12-22 14:16:03,790 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3804 transitions. Word has length 121 [2020-12-22 14:16:03,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:03,790 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 3804 transitions. [2020-12-22 14:16:03,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:03,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3804 transitions. [2020-12-22 14:16:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-22 14:16:03,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:03,794 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:04,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-22 14:16:04,008 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:04,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:04,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1478652258, now seen corresponding path program 1 times [2020-12-22 14:16:04,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:04,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689484493] [2020-12-22 14:16:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:16:04,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689484493] [2020-12-22 14:16:04,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271783086] [2020-12-22 14:16:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:05,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 2155 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 14:16:05,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:05,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 14:16:05,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:05,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-22 14:16:05,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193009259] [2020-12-22 14:16:05,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:05,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:05,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:05,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:05,319 INFO L87 Difference]: Start difference. First operand 2736 states and 3804 transitions. Second operand 5 states. [2020-12-22 14:16:05,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:05,942 INFO L93 Difference]: Finished difference Result 5286 states and 7352 transitions. [2020-12-22 14:16:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 14:16:05,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-12-22 14:16:05,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:05,951 INFO L225 Difference]: With dead ends: 5286 [2020-12-22 14:16:05,952 INFO L226 Difference]: Without dead ends: 2754 [2020-12-22 14:16:05,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:05,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-12-22 14:16:06,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2746. [2020-12-22 14:16:06,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2746 states. [2020-12-22 14:16:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 3814 transitions. [2020-12-22 14:16:06,240 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 3814 transitions. Word has length 121 [2020-12-22 14:16:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:06,240 INFO L481 AbstractCegarLoop]: Abstraction has 2746 states and 3814 transitions. [2020-12-22 14:16:06,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 3814 transitions. [2020-12-22 14:16:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 14:16:06,244 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:06,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:06,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:06,459 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash -577038577, now seen corresponding path program 2 times [2020-12-22 14:16:06,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:06,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574036919] [2020-12-22 14:16:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:06,791 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 14:16:06,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574036919] [2020-12-22 14:16:06,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:06,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:16:06,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931627274] [2020-12-22 14:16:06,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:06,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:06,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:06,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:06,795 INFO L87 Difference]: Start difference. First operand 2746 states and 3814 transitions. Second operand 5 states. [2020-12-22 14:16:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:07,351 INFO L93 Difference]: Finished difference Result 5652 states and 7828 transitions. [2020-12-22 14:16:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:07,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-12-22 14:16:07,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:07,367 INFO L225 Difference]: With dead ends: 5652 [2020-12-22 14:16:07,368 INFO L226 Difference]: Without dead ends: 5200 [2020-12-22 14:16:07,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2020-12-22 14:16:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 2294. [2020-12-22 14:16:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2294 states. [2020-12-22 14:16:07,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3162 transitions. [2020-12-22 14:16:07,561 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3162 transitions. Word has length 126 [2020-12-22 14:16:07,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:07,562 INFO L481 AbstractCegarLoop]: Abstraction has 2294 states and 3162 transitions. [2020-12-22 14:16:07,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:07,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3162 transitions. [2020-12-22 14:16:07,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-22 14:16:07,566 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:07,566 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:07,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 14:16:07,567 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:07,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:07,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1027025939, now seen corresponding path program 1 times [2020-12-22 14:16:07,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:07,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237762031] [2020-12-22 14:16:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 14:16:07,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237762031] [2020-12-22 14:16:07,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:07,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:16:07,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848445218] [2020-12-22 14:16:07,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:07,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:07,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:07,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:07,943 INFO L87 Difference]: Start difference. First operand 2294 states and 3162 transitions. Second operand 5 states. [2020-12-22 14:16:08,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:08,575 INFO L93 Difference]: Finished difference Result 5890 states and 8123 transitions. [2020-12-22 14:16:08,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:08,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-12-22 14:16:08,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:08,592 INFO L225 Difference]: With dead ends: 5890 [2020-12-22 14:16:08,592 INFO L226 Difference]: Without dead ends: 5198 [2020-12-22 14:16:08,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:08,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2020-12-22 14:16:08,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 2292. [2020-12-22 14:16:08,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2292 states. [2020-12-22 14:16:08,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3158 transitions. [2020-12-22 14:16:08,813 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3158 transitions. Word has length 128 [2020-12-22 14:16:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:08,814 INFO L481 AbstractCegarLoop]: Abstraction has 2292 states and 3158 transitions. [2020-12-22 14:16:08,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:08,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3158 transitions. [2020-12-22 14:16:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-12-22 14:16:08,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:08,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:08,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 14:16:08,820 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:08,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:08,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1949779484, now seen corresponding path program 1 times [2020-12-22 14:16:08,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:08,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775075363] [2020-12-22 14:16:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 14:16:09,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775075363] [2020-12-22 14:16:09,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:09,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:16:09,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372141728] [2020-12-22 14:16:09,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:09,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:09,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:09,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:16:09,050 INFO L87 Difference]: Start difference. First operand 2292 states and 3158 transitions. Second operand 3 states. [2020-12-22 14:16:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:10,132 INFO L93 Difference]: Finished difference Result 4792 states and 6630 transitions. [2020-12-22 14:16:10,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:10,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-12-22 14:16:10,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:10,140 INFO L225 Difference]: With dead ends: 4792 [2020-12-22 14:16:10,140 INFO L226 Difference]: Without dead ends: 2704 [2020-12-22 14:16:10,145 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 14:16:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2020-12-22 14:16:10,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2667. [2020-12-22 14:16:10,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2020-12-22 14:16:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3693 transitions. [2020-12-22 14:16:10,355 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3693 transitions. Word has length 138 [2020-12-22 14:16:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:10,355 INFO L481 AbstractCegarLoop]: Abstraction has 2667 states and 3693 transitions. [2020-12-22 14:16:10,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3693 transitions. [2020-12-22 14:16:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-22 14:16:10,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:10,368 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:10,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 14:16:10,369 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:10,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1250364911, now seen corresponding path program 1 times [2020-12-22 14:16:10,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:10,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686236941] [2020-12-22 14:16:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 14:16:10,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686236941] [2020-12-22 14:16:10,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:10,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 14:16:10,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339788947] [2020-12-22 14:16:10,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:10,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:10,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:10,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 14:16:10,599 INFO L87 Difference]: Start difference. First operand 2667 states and 3693 transitions. Second operand 3 states. [2020-12-22 14:16:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:11,126 INFO L93 Difference]: Finished difference Result 5146 states and 7126 transitions. [2020-12-22 14:16:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:11,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-12-22 14:16:11,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:11,134 INFO L225 Difference]: With dead ends: 5146 [2020-12-22 14:16:11,134 INFO L226 Difference]: Without dead ends: 2683 [2020-12-22 14:16:11,140 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 14:16:11,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2020-12-22 14:16:11,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2667. [2020-12-22 14:16:11,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2667 states. [2020-12-22 14:16:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 3645 transitions. [2020-12-22 14:16:11,353 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 3645 transitions. Word has length 162 [2020-12-22 14:16:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:11,353 INFO L481 AbstractCegarLoop]: Abstraction has 2667 states and 3645 transitions. [2020-12-22 14:16:11,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:11,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 3645 transitions. [2020-12-22 14:16:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-22 14:16:11,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:11,359 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:11,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 14:16:11,360 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash -103566158, now seen corresponding path program 1 times [2020-12-22 14:16:11,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:11,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413393878] [2020-12-22 14:16:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-12-22 14:16:11,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413393878] [2020-12-22 14:16:11,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:11,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 14:16:11,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735931826] [2020-12-22 14:16:11,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 14:16:11,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:11,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 14:16:11,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:16:11,632 INFO L87 Difference]: Start difference. First operand 2667 states and 3645 transitions. Second operand 4 states. [2020-12-22 14:16:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:12,109 INFO L93 Difference]: Finished difference Result 7471 states and 10227 transitions. [2020-12-22 14:16:12,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 14:16:12,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-12-22 14:16:12,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:12,124 INFO L225 Difference]: With dead ends: 7471 [2020-12-22 14:16:12,125 INFO L226 Difference]: Without dead ends: 5008 [2020-12-22 14:16:12,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 14:16:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2020-12-22 14:16:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 2711. [2020-12-22 14:16:12,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2020-12-22 14:16:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3701 transitions. [2020-12-22 14:16:12,382 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3701 transitions. Word has length 165 [2020-12-22 14:16:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:12,383 INFO L481 AbstractCegarLoop]: Abstraction has 2711 states and 3701 transitions. [2020-12-22 14:16:12,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 14:16:12,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3701 transitions. [2020-12-22 14:16:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-12-22 14:16:12,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:12,389 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:12,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 14:16:12,390 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:12,390 INFO L82 PathProgramCache]: Analyzing trace with hash -690372172, now seen corresponding path program 1 times [2020-12-22 14:16:12,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:12,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964388917] [2020-12-22 14:16:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:12,778 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 14:16:12,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964388917] [2020-12-22 14:16:12,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423281475] [2020-12-22 14:16:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:13,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 14:16:13,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:13,854 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 14:16:13,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:13,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-22 14:16:13,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257187084] [2020-12-22 14:16:13,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 14:16:13,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:13,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 14:16:13,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:16:13,857 INFO L87 Difference]: Start difference. First operand 2711 states and 3701 transitions. Second operand 6 states. [2020-12-22 14:16:14,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:14,511 INFO L93 Difference]: Finished difference Result 5236 states and 7146 transitions. [2020-12-22 14:16:14,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 14:16:14,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-12-22 14:16:14,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:14,519 INFO L225 Difference]: With dead ends: 5236 [2020-12-22 14:16:14,520 INFO L226 Difference]: Without dead ends: 2729 [2020-12-22 14:16:14,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-22 14:16:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2020-12-22 14:16:14,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2721. [2020-12-22 14:16:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2020-12-22 14:16:14,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3711 transitions. [2020-12-22 14:16:14,760 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3711 transitions. Word has length 165 [2020-12-22 14:16:14,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:14,760 INFO L481 AbstractCegarLoop]: Abstraction has 2721 states and 3711 transitions. [2020-12-22 14:16:14,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 14:16:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3711 transitions. [2020-12-22 14:16:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-12-22 14:16:14,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:14,766 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:14,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:14,981 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:14,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:14,982 INFO L82 PathProgramCache]: Analyzing trace with hash 609376225, now seen corresponding path program 2 times [2020-12-22 14:16:14,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:14,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473097592] [2020-12-22 14:16:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 14:16:15,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473097592] [2020-12-22 14:16:15,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927460653] [2020-12-22 14:16:15,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:16,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 14:16:16,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:16:16,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1847 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 14:16:16,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:16,354 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-22 14:16:16,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:16,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-12-22 14:16:16,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295958688] [2020-12-22 14:16:16,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:16,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:16,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:16,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 14:16:16,356 INFO L87 Difference]: Start difference. First operand 2721 states and 3711 transitions. Second operand 5 states. [2020-12-22 14:16:17,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:17,032 INFO L93 Difference]: Finished difference Result 6710 states and 9226 transitions. [2020-12-22 14:16:17,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:17,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-12-22 14:16:17,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:17,048 INFO L225 Difference]: With dead ends: 6710 [2020-12-22 14:16:17,048 INFO L226 Difference]: Without dead ends: 6612 [2020-12-22 14:16:17,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-12-22 14:16:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2020-12-22 14:16:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 2620. [2020-12-22 14:16:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-12-22 14:16:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3581 transitions. [2020-12-22 14:16:17,312 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3581 transitions. Word has length 170 [2020-12-22 14:16:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:17,313 INFO L481 AbstractCegarLoop]: Abstraction has 2620 states and 3581 transitions. [2020-12-22 14:16:17,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:17,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3581 transitions. [2020-12-22 14:16:17,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-12-22 14:16:17,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:17,318 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:17,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:17,532 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1798789084, now seen corresponding path program 1 times [2020-12-22 14:16:17,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:17,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244059436] [2020-12-22 14:16:17,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-22 14:16:17,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244059436] [2020-12-22 14:16:17,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696468524] [2020-12-22 14:16:17,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:18,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 14:16:18,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:19,043 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-22 14:16:19,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:19,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-22 14:16:19,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986945967] [2020-12-22 14:16:19,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:19,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:19,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:19,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:19,045 INFO L87 Difference]: Start difference. First operand 2620 states and 3581 transitions. Second operand 3 states. [2020-12-22 14:16:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:20,897 INFO L93 Difference]: Finished difference Result 5083 states and 6934 transitions. [2020-12-22 14:16:20,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:20,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-12-22 14:16:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:20,907 INFO L225 Difference]: With dead ends: 5083 [2020-12-22 14:16:20,908 INFO L226 Difference]: Without dead ends: 2667 [2020-12-22 14:16:20,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2020-12-22 14:16:21,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2620. [2020-12-22 14:16:21,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2620 states. [2020-12-22 14:16:21,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2620 states to 2620 states and 3575 transitions. [2020-12-22 14:16:21,189 INFO L78 Accepts]: Start accepts. Automaton has 2620 states and 3575 transitions. Word has length 171 [2020-12-22 14:16:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:21,190 INFO L481 AbstractCegarLoop]: Abstraction has 2620 states and 3575 transitions. [2020-12-22 14:16:21,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2620 states and 3575 transitions. [2020-12-22 14:16:21,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-12-22 14:16:21,195 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:21,196 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:21,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:21,411 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:21,412 INFO L82 PathProgramCache]: Analyzing trace with hash -104374117, now seen corresponding path program 1 times [2020-12-22 14:16:21,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:21,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352044702] [2020-12-22 14:16:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 14:16:21,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352044702] [2020-12-22 14:16:21,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137755923] [2020-12-22 14:16:21,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:22,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 14:16:22,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 14:16:22,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:22,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-22 14:16:22,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347659093] [2020-12-22 14:16:22,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 14:16:22,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:22,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 14:16:22,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:16:22,931 INFO L87 Difference]: Start difference. First operand 2620 states and 3575 transitions. Second operand 7 states. [2020-12-22 14:16:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:23,372 INFO L93 Difference]: Finished difference Result 5054 states and 6894 transitions. [2020-12-22 14:16:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 14:16:23,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-12-22 14:16:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:23,376 INFO L225 Difference]: With dead ends: 5054 [2020-12-22 14:16:23,376 INFO L226 Difference]: Without dead ends: 2638 [2020-12-22 14:16:23,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-22 14:16:23,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2638 states. [2020-12-22 14:16:23,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2638 to 2630. [2020-12-22 14:16:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2630 states. [2020-12-22 14:16:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2630 states to 2630 states and 3585 transitions. [2020-12-22 14:16:23,591 INFO L78 Accepts]: Start accepts. Automaton has 2630 states and 3585 transitions. Word has length 172 [2020-12-22 14:16:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:23,591 INFO L481 AbstractCegarLoop]: Abstraction has 2630 states and 3585 transitions. [2020-12-22 14:16:23,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 14:16:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2630 states and 3585 transitions. [2020-12-22 14:16:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-12-22 14:16:23,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:23,597 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:23,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-22 14:16:23,811 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1211035086, now seen corresponding path program 2 times [2020-12-22 14:16:23,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:23,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006862590] [2020-12-22 14:16:23,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 14:16:24,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006862590] [2020-12-22 14:16:24,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430205768] [2020-12-22 14:16:24,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:26,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 14:16:26,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:16:26,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 14:16:26,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:26,964 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-22 14:16:26,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:26,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-12-22 14:16:26,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303062050] [2020-12-22 14:16:26,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:26,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:26,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:26,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:26,967 INFO L87 Difference]: Start difference. First operand 2630 states and 3585 transitions. Second operand 3 states. [2020-12-22 14:16:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:27,323 INFO L93 Difference]: Finished difference Result 5237 states and 7151 transitions. [2020-12-22 14:16:27,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:27,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2020-12-22 14:16:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:27,328 INFO L225 Difference]: With dead ends: 5237 [2020-12-22 14:16:27,329 INFO L226 Difference]: Without dead ends: 2635 [2020-12-22 14:16:27,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2020-12-22 14:16:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2635. [2020-12-22 14:16:27,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2635 states. [2020-12-22 14:16:27,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3590 transitions. [2020-12-22 14:16:27,653 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3590 transitions. Word has length 177 [2020-12-22 14:16:27,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:27,653 INFO L481 AbstractCegarLoop]: Abstraction has 2635 states and 3590 transitions. [2020-12-22 14:16:27,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:27,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3590 transitions. [2020-12-22 14:16:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-22 14:16:27,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:27,659 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:27,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:27,860 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:27,861 INFO L82 PathProgramCache]: Analyzing trace with hash 899183434, now seen corresponding path program 1 times [2020-12-22 14:16:27,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:27,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888156214] [2020-12-22 14:16:27,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 14:16:28,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888156214] [2020-12-22 14:16:28,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467247134] [2020-12-22 14:16:28,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:29,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 14:16:29,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 9 proven. 34 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 14:16:29,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:29,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-22 14:16:29,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971386891] [2020-12-22 14:16:29,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 14:16:29,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:29,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 14:16:29,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:29,372 INFO L87 Difference]: Start difference. First operand 2635 states and 3590 transitions. Second operand 8 states. [2020-12-22 14:16:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:29,983 INFO L93 Difference]: Finished difference Result 5079 states and 6919 transitions. [2020-12-22 14:16:29,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:29,984 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-12-22 14:16:29,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:29,987 INFO L225 Difference]: With dead ends: 5079 [2020-12-22 14:16:29,987 INFO L226 Difference]: Without dead ends: 2653 [2020-12-22 14:16:29,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:29,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2020-12-22 14:16:30,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2645. [2020-12-22 14:16:30,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2645 states. [2020-12-22 14:16:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3600 transitions. [2020-12-22 14:16:30,253 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3600 transitions. Word has length 182 [2020-12-22 14:16:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:30,254 INFO L481 AbstractCegarLoop]: Abstraction has 2645 states and 3600 transitions. [2020-12-22 14:16:30,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 14:16:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3600 transitions. [2020-12-22 14:16:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-12-22 14:16:30,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:30,261 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 14:16:30,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:30,475 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:30,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1462161281, now seen corresponding path program 2 times [2020-12-22 14:16:30,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:30,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106173070] [2020-12-22 14:16:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-22 14:16:30,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106173070] [2020-12-22 14:16:30,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173451600] [2020-12-22 14:16:30,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:33,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 14:16:33,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:16:33,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-22 14:16:33,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:33,878 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-12-22 14:16:33,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:33,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-12-22 14:16:33,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891732795] [2020-12-22 14:16:33,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 14:16:33,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:33,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 14:16:33,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 14:16:33,881 INFO L87 Difference]: Start difference. First operand 2645 states and 3600 transitions. Second operand 3 states. [2020-12-22 14:16:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:34,262 INFO L93 Difference]: Finished difference Result 5254 states and 7164 transitions. [2020-12-22 14:16:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 14:16:34,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-12-22 14:16:34,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:34,268 INFO L225 Difference]: With dead ends: 5254 [2020-12-22 14:16:34,268 INFO L226 Difference]: Without dead ends: 2649 [2020-12-22 14:16:34,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-12-22 14:16:34,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2020-12-22 14:16:34,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2649. [2020-12-22 14:16:34,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2649 states. [2020-12-22 14:16:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 3604 transitions. [2020-12-22 14:16:34,588 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 3604 transitions. Word has length 187 [2020-12-22 14:16:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:34,589 INFO L481 AbstractCegarLoop]: Abstraction has 2649 states and 3604 transitions. [2020-12-22 14:16:34,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 14:16:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 3604 transitions. [2020-12-22 14:16:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-12-22 14:16:34,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:34,593 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:34,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-22 14:16:34,807 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:34,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:34,807 INFO L82 PathProgramCache]: Analyzing trace with hash -131347205, now seen corresponding path program 1 times [2020-12-22 14:16:34,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:34,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211475972] [2020-12-22 14:16:34,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 14:16:35,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211475972] [2020-12-22 14:16:35,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76224891] [2020-12-22 14:16:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:36,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 2800 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-22 14:16:36,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 14:16:36,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:36,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-12-22 14:16:36,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589941611] [2020-12-22 14:16:36,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 14:16:36,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:36,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 14:16:36,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 14:16:36,509 INFO L87 Difference]: Start difference. First operand 2649 states and 3604 transitions. Second operand 9 states. [2020-12-22 14:16:37,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:37,212 INFO L93 Difference]: Finished difference Result 5103 states and 6943 transitions. [2020-12-22 14:16:37,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 14:16:37,213 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 191 [2020-12-22 14:16:37,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:37,216 INFO L225 Difference]: With dead ends: 5103 [2020-12-22 14:16:37,217 INFO L226 Difference]: Without dead ends: 2667 [2020-12-22 14:16:37,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2020-12-22 14:16:37,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2020-12-22 14:16:37,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2659. [2020-12-22 14:16:37,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2020-12-22 14:16:37,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3614 transitions. [2020-12-22 14:16:37,463 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3614 transitions. Word has length 191 [2020-12-22 14:16:37,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:37,463 INFO L481 AbstractCegarLoop]: Abstraction has 2659 states and 3614 transitions. [2020-12-22 14:16:37,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 14:16:37,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3614 transitions. [2020-12-22 14:16:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-12-22 14:16:37,467 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:37,468 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:37,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-22 14:16:37,677 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1753268882, now seen corresponding path program 2 times [2020-12-22 14:16:37,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:37,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404855955] [2020-12-22 14:16:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:38,053 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 14:16:38,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404855955] [2020-12-22 14:16:38,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322441067] [2020-12-22 14:16:38,054 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:41,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-22 14:16:41,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:16:41,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2891 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-22 14:16:41,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 9 proven. 81 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 14:16:41,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 14:16:41,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2020-12-22 14:16:41,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193270746] [2020-12-22 14:16:41,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 14:16:41,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:41,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 14:16:41,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 14:16:41,892 INFO L87 Difference]: Start difference. First operand 2659 states and 3614 transitions. Second operand 10 states. [2020-12-22 14:16:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:42,866 INFO L93 Difference]: Finished difference Result 5123 states and 6963 transitions. [2020-12-22 14:16:42,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 14:16:42,867 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-12-22 14:16:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:42,871 INFO L225 Difference]: With dead ends: 5123 [2020-12-22 14:16:42,871 INFO L226 Difference]: Without dead ends: 2677 [2020-12-22 14:16:42,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2020-12-22 14:16:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2677 states. [2020-12-22 14:16:43,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2677 to 2669. [2020-12-22 14:16:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-12-22 14:16:43,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3624 transitions. [2020-12-22 14:16:43,191 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3624 transitions. Word has length 196 [2020-12-22 14:16:43,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:43,191 INFO L481 AbstractCegarLoop]: Abstraction has 2669 states and 3624 transitions. [2020-12-22 14:16:43,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 14:16:43,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3624 transitions. [2020-12-22 14:16:43,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-12-22 14:16:43,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:43,198 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:43,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-22 14:16:43,412 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:43,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1997479131, now seen corresponding path program 3 times [2020-12-22 14:16:43,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:43,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093570589] [2020-12-22 14:16:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 9 proven. 112 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 14:16:43,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093570589] [2020-12-22 14:16:43,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334866739] [2020-12-22 14:16:43,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:47,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-22 14:16:47,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 14:16:47,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-22 14:16:47,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 14:16:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-12-22 14:16:47,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 14:16:47,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2020-12-22 14:16:47,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307963487] [2020-12-22 14:16:47,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:47,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:47,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:47,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-12-22 14:16:47,462 INFO L87 Difference]: Start difference. First operand 2669 states and 3624 transitions. Second operand 5 states. [2020-12-22 14:16:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:48,144 INFO L93 Difference]: Finished difference Result 7641 states and 10442 transitions. [2020-12-22 14:16:48,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:48,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2020-12-22 14:16:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:48,153 INFO L225 Difference]: With dead ends: 7641 [2020-12-22 14:16:48,153 INFO L226 Difference]: Without dead ends: 6737 [2020-12-22 14:16:48,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-12-22 14:16:48,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2020-12-22 14:16:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 2668. [2020-12-22 14:16:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2668 states. [2020-12-22 14:16:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3621 transitions. [2020-12-22 14:16:48,458 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3621 transitions. Word has length 201 [2020-12-22 14:16:48,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:48,459 INFO L481 AbstractCegarLoop]: Abstraction has 2668 states and 3621 transitions. [2020-12-22 14:16:48,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:48,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3621 transitions. [2020-12-22 14:16:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-12-22 14:16:48,462 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:48,463 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:48,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 14:16:48,679 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:48,680 INFO L82 PathProgramCache]: Analyzing trace with hash -353400679, now seen corresponding path program 1 times [2020-12-22 14:16:48,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:48,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156021635] [2020-12-22 14:16:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:48,952 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-12-22 14:16:48,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156021635] [2020-12-22 14:16:48,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:48,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:16:48,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283680263] [2020-12-22 14:16:48,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:48,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:48,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:48,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:48,954 INFO L87 Difference]: Start difference. First operand 2668 states and 3621 transitions. Second operand 5 states. [2020-12-22 14:16:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:49,848 INFO L93 Difference]: Finished difference Result 7992 states and 10908 transitions. [2020-12-22 14:16:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:49,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-12-22 14:16:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:49,857 INFO L225 Difference]: With dead ends: 7992 [2020-12-22 14:16:49,858 INFO L226 Difference]: Without dead ends: 7964 [2020-12-22 14:16:49,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:49,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7964 states. [2020-12-22 14:16:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7964 to 2640. [2020-12-22 14:16:50,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2640 states. [2020-12-22 14:16:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3589 transitions. [2020-12-22 14:16:50,108 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3589 transitions. Word has length 203 [2020-12-22 14:16:50,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:50,108 INFO L481 AbstractCegarLoop]: Abstraction has 2640 states and 3589 transitions. [2020-12-22 14:16:50,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3589 transitions. [2020-12-22 14:16:50,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-12-22 14:16:50,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 14:16:50,112 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:50,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 14:16:50,112 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 14:16:50,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 14:16:50,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1218457014, now seen corresponding path program 1 times [2020-12-22 14:16:50,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 14:16:50,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287056696] [2020-12-22 14:16:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 14:16:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 14:16:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-12-22 14:16:50,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287056696] [2020-12-22 14:16:50,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 14:16:50,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 14:16:50,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658814387] [2020-12-22 14:16:50,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 14:16:50,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 14:16:50,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 14:16:50,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 14:16:50,421 INFO L87 Difference]: Start difference. First operand 2640 states and 3589 transitions. Second operand 5 states. [2020-12-22 14:16:51,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 14:16:51,405 INFO L93 Difference]: Finished difference Result 7966 states and 10878 transitions. [2020-12-22 14:16:51,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 14:16:51,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-12-22 14:16:51,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 14:16:51,406 INFO L225 Difference]: With dead ends: 7966 [2020-12-22 14:16:51,406 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 14:16:51,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 14:16:51,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 14:16:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 14:16:51,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 14:16:51,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 14:16:51,414 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-12-22 14:16:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 14:16:51,414 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 14:16:51,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 14:16:51,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 14:16:51,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 14:16:51,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 14:16:51,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 14:16:51,550 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-12-22 14:16:51,659 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2020-12-22 14:16:52,113 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:52,891 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:53,420 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 67 [2020-12-22 14:16:53,851 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:54,377 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:54,667 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:55,017 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:55,264 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:55,534 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:55,886 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:56,273 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:56,597 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-12-22 14:16:57,123 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:57,625 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:58,116 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-12-22 14:16:58,843 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:59,124 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:59,379 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:16:59,675 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:00,149 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:00,645 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:01,168 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 140 [2020-12-22 14:17:01,409 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:01,658 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:01,936 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 131 [2020-12-22 14:17:03,147 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 236 DAG size of output: 192 [2020-12-22 14:17:03,717 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:03,995 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:04,301 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:04,609 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 130 [2020-12-22 14:17:06,160 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 236 DAG size of output: 192 [2020-12-22 14:17:06,455 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:06,927 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:07,217 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:07,935 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 138 [2020-12-22 14:17:08,180 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:08,431 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:08,859 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:09,307 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:10,309 WARN L197 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 202 [2020-12-22 14:17:10,730 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:11,161 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:11,488 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:11,816 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 134 [2020-12-22 14:17:12,210 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:12,803 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:13,042 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:13,499 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:13,769 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:14,200 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:14,448 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:14,694 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:15,256 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:15,744 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:16,207 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:16,509 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:18,081 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 236 DAG size of output: 192 [2020-12-22 14:17:19,256 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 236 DAG size of output: 192 [2020-12-22 14:17:19,600 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:19,905 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:20,251 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:20,820 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:21,366 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:21,649 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:21,973 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:22,224 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:22,636 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:22,882 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:23,117 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:23,378 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 130 [2020-12-22 14:17:23,855 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:17:24,261 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:17:25,706 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:26,141 WARN L197 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:26,252 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:17:26,674 WARN L197 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:27,090 WARN L197 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:27,445 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:17:27,660 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:17:28,115 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:17:29,616 WARN L197 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:29,996 WARN L197 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:30,377 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:30,543 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:30,894 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:17:31,035 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:17:31,424 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:31,844 WARN L197 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:32,286 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:17:32,399 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:17:32,772 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 18 [2020-12-22 14:17:33,189 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:33,356 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2020-12-22 14:17:33,770 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:17:33,936 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:35,387 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:35,845 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:17:36,351 WARN L197 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:36,804 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:17:37,383 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:17:38,845 WARN L197 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:39,089 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:39,256 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:39,438 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:40,901 WARN L197 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:41,327 WARN L197 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:42,801 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:44,319 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:45,841 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:46,302 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:46,613 WARN L197 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2020-12-22 14:17:48,065 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:48,521 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:17:48,908 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 18 [2020-12-22 14:17:50,350 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:50,742 WARN L197 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:52,230 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 136 DAG size of output: 26 [2020-12-22 14:17:52,395 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:52,563 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:53,074 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 19 [2020-12-22 14:17:53,241 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:53,626 WARN L197 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:17:54,057 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 18 [2020-12-22 14:17:54,388 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:54,553 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:54,689 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:17:55,133 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:17:56,861 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:17:57,264 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:57,523 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:17:58,047 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:17:58,531 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:17:58,975 WARN L197 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:00,492 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:00,933 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:01,122 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:01,309 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:01,672 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:01,774 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 24 [2020-12-22 14:18:01,915 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2020-12-22 14:18:02,263 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:02,437 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:02,849 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:18:03,023 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:04,599 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 136 DAG size of output: 26 [2020-12-22 14:18:04,775 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:05,231 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:05,406 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:05,772 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:05,943 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:06,367 WARN L197 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:18:06,807 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:07,021 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:18:07,916 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:08,163 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:08,639 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:09,106 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:09,245 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:18:10,798 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:12,337 WARN L197 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:13,843 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:14,229 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:15,786 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:16,279 WARN L197 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:16,458 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:16,839 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 19 [2020-12-22 14:18:17,016 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:17,387 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 19 [2020-12-22 14:18:17,561 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:17,970 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:18:18,140 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:18,309 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:19,990 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:20,852 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:18:21,027 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:21,635 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 19 [2020-12-22 14:18:22,260 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:22,434 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:23,939 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:24,051 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:24,304 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:24,418 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:24,806 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:24,988 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:25,450 WARN L197 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:25,638 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:27,451 WARN L197 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 138 DAG size of output: 26 [2020-12-22 14:18:29,037 WARN L197 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:30,632 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:30,799 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:30,966 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:32,595 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 131 DAG size of output: 26 [2020-12-22 14:18:32,814 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:18:33,045 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:18:33,216 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 23 [2020-12-22 14:18:33,389 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:37,411 WARN L197 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 192 DAG size of output: 17 [2020-12-22 14:18:37,729 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 19 [2020-12-22 14:18:38,192 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:38,363 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:38,534 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:40,007 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:40,265 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:40,438 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:41,927 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:42,286 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:44,051 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:44,602 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:44,718 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:46,212 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:46,385 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:46,936 WARN L197 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:18:47,200 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:47,568 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:47,748 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:47,882 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:48,054 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:48,514 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:48,951 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:49,130 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:49,772 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:49,947 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:50,063 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:50,236 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:50,351 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-12-22 14:18:54,036 WARN L197 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 192 DAG size of output: 17 [2020-12-22 14:18:54,475 WARN L197 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:18:55,964 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:18:56,328 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:56,714 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:56,939 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:18:57,305 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:57,675 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:57,848 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:18:58,370 WARN L197 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:18:59,938 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:00,170 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 33 [2020-12-22 14:19:00,440 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:01,956 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:02,195 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 33 [2020-12-22 14:19:02,456 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:02,970 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:03,149 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:03,306 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:19:03,674 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:19:03,816 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 26 [2020-12-22 14:19:04,190 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:19:04,652 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:19:05,097 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:19:05,358 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:05,827 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 20 [2020-12-22 14:19:06,003 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:06,363 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:06,616 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:06,921 WARN L197 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 19 [2020-12-22 14:19:07,164 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-12-22 14:19:08,696 WARN L197 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 136 DAG size of output: 26 [2020-12-22 14:19:10,185 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:11,687 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:11,948 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:12,122 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:12,620 WARN L197 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 19 [2020-12-22 14:19:13,018 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 18 [2020-12-22 14:19:13,213 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:14,897 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:15,390 WARN L197 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:19:15,883 WARN L197 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:19:16,291 WARN L197 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 19 [2020-12-22 14:19:16,734 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19 [2020-12-22 14:19:16,908 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:18,424 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:18,599 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 24 [2020-12-22 14:19:21,680 WARN L197 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 202 DAG size of output: 17 [2020-12-22 14:19:22,337 WARN L197 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 17 [2020-12-22 14:19:22,773 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 18 [2020-12-22 14:19:23,222 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 19 [2020-12-22 14:19:24,724 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 129 DAG size of output: 24 [2020-12-22 14:19:25,161 WARN L197 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 19