/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 21:24:13,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 21:24:13,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 21:24:13,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 21:24:13,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 21:24:13,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 21:24:13,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 21:24:13,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 21:24:13,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 21:24:13,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 21:24:13,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 21:24:13,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 21:24:13,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 21:24:13,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 21:24:13,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 21:24:13,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 21:24:13,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 21:24:13,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 21:24:13,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 21:24:13,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 21:24:13,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 21:24:13,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 21:24:13,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 21:24:13,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 21:24:13,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 21:24:13,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 21:24:13,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 21:24:13,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 21:24:13,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 21:24:13,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 21:24:13,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 21:24:13,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 21:24:13,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 21:24:13,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 21:24:13,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 21:24:13,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 21:24:13,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 21:24:13,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 21:24:13,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 21:24:13,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 21:24:13,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 21:24:13,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 21:24:13,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 21:24:13,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 21:24:13,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 21:24:13,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 21:24:13,877 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 21:24:13,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 21:24:13,878 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 21:24:13,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 21:24:13,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 21:24:13,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 21:24:13,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 21:24:13,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 21:24:13,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 21:24:13,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 21:24:13,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 21:24:13,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 21:24:13,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 21:24:13,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 21:24:13,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 21:24:13,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 21:24:13,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 21:24:13,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 21:24:13,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 21:24:13,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 21:24:13,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 21:24:13,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 21:24:13,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 21:24:13,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 21:24:13,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 21:24:13,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-08-21 21:24:14,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 21:24:14,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 21:24:14,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 21:24:14,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 21:24:14,249 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 21:24:14,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-21 21:24:14,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfdd48008/68e84aedfe0b4e2198b890a3abfaea40/FLAGe1c74847a [2020-08-21 21:24:14,927 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 21:24:14,927 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2020-08-21 21:24:14,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfdd48008/68e84aedfe0b4e2198b890a3abfaea40/FLAGe1c74847a [2020-08-21 21:24:15,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfdd48008/68e84aedfe0b4e2198b890a3abfaea40 [2020-08-21 21:24:15,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 21:24:15,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 21:24:15,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 21:24:15,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 21:24:15,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 21:24:15,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:24:15" (1/1) ... [2020-08-21 21:24:15,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:15, skipping insertion in model container [2020-08-21 21:24:15,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 09:24:15" (1/1) ... [2020-08-21 21:24:15,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 21:24:15,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 21:24:15,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:24:15,717 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 21:24:16,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 21:24:16,048 INFO L208 MainTranslator]: Completed translation [2020-08-21 21:24:16,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16 WrapperNode [2020-08-21 21:24:16,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 21:24:16,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 21:24:16,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 21:24:16,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 21:24:16,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... [2020-08-21 21:24:16,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 21:24:16,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 21:24:16,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 21:24:16,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 21:24:16,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 21:24:16,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 21:24:16,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 21:24:16,312 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-21 21:24:16,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 21:24:16,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-21 21:24:16,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 21:24:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 21:24:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-21 21:24:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 21:24:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 21:24:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 21:24:17,526 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 21:24:17,527 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 21:24:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:24:17 BoogieIcfgContainer [2020-08-21 21:24:17,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 21:24:17,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 21:24:17,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 21:24:17,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 21:24:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 09:24:15" (1/3) ... [2020-08-21 21:24:17,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:24:17, skipping insertion in model container [2020-08-21 21:24:17,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 09:24:16" (2/3) ... [2020-08-21 21:24:17,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 09:24:17, skipping insertion in model container [2020-08-21 21:24:17,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 09:24:17" (3/3) ... [2020-08-21 21:24:17,542 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2020-08-21 21:24:17,553 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 21:24:17,561 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 21:24:17,575 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 21:24:17,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 21:24:17,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 21:24:17,601 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 21:24:17,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 21:24:17,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 21:24:17,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 21:24:17,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 21:24:17,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 21:24:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-21 21:24:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-08-21 21:24:17,638 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:17,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 21:24:17,640 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:17,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:17,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1414431897, now seen corresponding path program 1 times [2020-08-21 21:24:17,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:17,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041557878] [2020-08-21 21:24:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:18,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:24:18,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041557878] [2020-08-21 21:24:18,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:24:18,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 21:24:18,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776286893] [2020-08-21 21:24:18,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 21:24:18,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:18,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 21:24:18,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:24:18,306 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-21 21:24:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:19,835 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-08-21 21:24:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 21:24:19,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-08-21 21:24:19,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:19,869 INFO L225 Difference]: With dead ends: 557 [2020-08-21 21:24:19,869 INFO L226 Difference]: Without dead ends: 286 [2020-08-21 21:24:19,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 21:24:19,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-21 21:24:19,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-08-21 21:24:19,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-21 21:24:19,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-08-21 21:24:19,958 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 109 [2020-08-21 21:24:19,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:19,959 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-08-21 21:24:19,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 21:24:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-08-21 21:24:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-08-21 21:24:19,964 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:19,964 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 21:24:19,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 21:24:19,965 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:19,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:19,965 INFO L82 PathProgramCache]: Analyzing trace with hash -609512656, now seen corresponding path program 1 times [2020-08-21 21:24:19,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:19,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1843816468] [2020-08-21 21:24:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:20,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:20,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:24:20,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1843816468] [2020-08-21 21:24:20,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 21:24:20,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 21:24:20,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681235839] [2020-08-21 21:24:20,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 21:24:20,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:20,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 21:24:20,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:24:20,228 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-08-21 21:24:21,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:21,727 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-08-21 21:24:21,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 21:24:21,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 119 [2020-08-21 21:24:21,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:21,733 INFO L225 Difference]: With dead ends: 713 [2020-08-21 21:24:21,733 INFO L226 Difference]: Without dead ends: 439 [2020-08-21 21:24:21,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-21 21:24:21,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-21 21:24:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-08-21 21:24:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-08-21 21:24:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-08-21 21:24:21,815 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 119 [2020-08-21 21:24:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:21,816 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-08-21 21:24:21,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 21:24:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-08-21 21:24:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-21 21:24:21,833 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:21,834 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] [2020-08-21 21:24:21,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 21:24:21,836 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:21,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:21,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1252784430, now seen corresponding path program 1 times [2020-08-21 21:24:21,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:21,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073820520] [2020-08-21 21:24:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:22,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:22,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:22,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:24:22,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073820520] [2020-08-21 21:24:22,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:22,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 21:24:22,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917186656] [2020-08-21 21:24:22,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 21:24:22,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:22,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 21:24:22,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 21:24:22,289 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 6 states. [2020-08-21 21:24:23,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:23,552 INFO L93 Difference]: Finished difference Result 945 states and 1358 transitions. [2020-08-21 21:24:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:24:23,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2020-08-21 21:24:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:23,557 INFO L225 Difference]: With dead ends: 945 [2020-08-21 21:24:23,557 INFO L226 Difference]: Without dead ends: 427 [2020-08-21 21:24:23,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:24:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-21 21:24:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-21 21:24:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-21 21:24:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 552 transitions. [2020-08-21 21:24:23,582 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 552 transitions. Word has length 120 [2020-08-21 21:24:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:23,582 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 552 transitions. [2020-08-21 21:24:23,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 21:24:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 552 transitions. [2020-08-21 21:24:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-21 21:24:23,585 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:23,585 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-21 21:24:23,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 21:24:23,586 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1134301708, now seen corresponding path program 1 times [2020-08-21 21:24:23,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:23,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881279254] [2020-08-21 21:24:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:23,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:24:23,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881279254] [2020-08-21 21:24:23,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:23,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 21:24:23,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921785392] [2020-08-21 21:24:23,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:24:23,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:23,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:24:23,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:24:23,957 INFO L87 Difference]: Start difference. First operand 419 states and 552 transitions. Second operand 7 states. [2020-08-21 21:24:25,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:25,029 INFO L93 Difference]: Finished difference Result 924 states and 1249 transitions. [2020-08-21 21:24:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:24:25,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-08-21 21:24:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:25,034 INFO L225 Difference]: With dead ends: 924 [2020-08-21 21:24:25,034 INFO L226 Difference]: Without dead ends: 427 [2020-08-21 21:24:25,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-21 21:24:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-08-21 21:24:25,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 419. [2020-08-21 21:24:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-08-21 21:24:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 549 transitions. [2020-08-21 21:24:25,055 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 549 transitions. Word has length 121 [2020-08-21 21:24:25,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:25,056 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 549 transitions. [2020-08-21 21:24:25,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:24:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 549 transitions. [2020-08-21 21:24:25,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-08-21 21:24:25,058 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:25,058 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-08-21 21:24:25,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 21:24:25,059 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:25,059 INFO L82 PathProgramCache]: Analyzing trace with hash 107820154, now seen corresponding path program 1 times [2020-08-21 21:24:25,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:25,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400699148] [2020-08-21 21:24:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:25,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:25,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 21:24:25,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400699148] [2020-08-21 21:24:25,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:25,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 21:24:25,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375809466] [2020-08-21 21:24:25,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 21:24:25,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:25,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 21:24:25,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-21 21:24:25,285 INFO L87 Difference]: Start difference. First operand 419 states and 549 transitions. Second operand 6 states. [2020-08-21 21:24:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:26,918 INFO L93 Difference]: Finished difference Result 1666 states and 2256 transitions. [2020-08-21 21:24:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 21:24:26,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-08-21 21:24:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:26,927 INFO L225 Difference]: With dead ends: 1666 [2020-08-21 21:24:26,927 INFO L226 Difference]: Without dead ends: 1253 [2020-08-21 21:24:26,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-21 21:24:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-21 21:24:26,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1245. [2020-08-21 21:24:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-21 21:24:26,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1558 transitions. [2020-08-21 21:24:26,985 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1558 transitions. Word has length 126 [2020-08-21 21:24:26,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:26,986 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1558 transitions. [2020-08-21 21:24:26,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 21:24:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1558 transitions. [2020-08-21 21:24:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-21 21:24:26,991 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:26,991 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-21 21:24:26,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 21:24:26,992 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1185649201, now seen corresponding path program 1 times [2020-08-21 21:24:26,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:26,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290659712] [2020-08-21 21:24:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:27,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:27,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:27,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:24:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 21:24:27,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290659712] [2020-08-21 21:24:27,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:27,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 21:24:27,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114825293] [2020-08-21 21:24:27,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:24:27,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:27,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:24:27,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:24:27,173 INFO L87 Difference]: Start difference. First operand 1245 states and 1558 transitions. Second operand 7 states. [2020-08-21 21:24:28,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:28,377 INFO L93 Difference]: Finished difference Result 3211 states and 4144 transitions. [2020-08-21 21:24:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 21:24:28,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-08-21 21:24:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:28,390 INFO L225 Difference]: With dead ends: 3211 [2020-08-21 21:24:28,391 INFO L226 Difference]: Without dead ends: 1972 [2020-08-21 21:24:28,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 21:24:28,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-08-21 21:24:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1680. [2020-08-21 21:24:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-08-21 21:24:28,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2085 transitions. [2020-08-21 21:24:28,467 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2085 transitions. Word has length 142 [2020-08-21 21:24:28,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:28,467 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2085 transitions. [2020-08-21 21:24:28,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:24:28,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2085 transitions. [2020-08-21 21:24:28,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-21 21:24:28,474 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:28,474 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-08-21 21:24:28,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 21:24:28,475 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:28,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:28,475 INFO L82 PathProgramCache]: Analyzing trace with hash 720782619, now seen corresponding path program 1 times [2020-08-21 21:24:28,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:28,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073328567] [2020-08-21 21:24:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:28,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:28,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:28,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 21:24:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 21:24:28,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073328567] [2020-08-21 21:24:28,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:28,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 21:24:28,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452964657] [2020-08-21 21:24:28,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:24:28,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:28,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:24:28,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:24:28,659 INFO L87 Difference]: Start difference. First operand 1680 states and 2085 transitions. Second operand 7 states. [2020-08-21 21:24:30,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:30,089 INFO L93 Difference]: Finished difference Result 3930 states and 4892 transitions. [2020-08-21 21:24:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 21:24:30,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-08-21 21:24:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:30,105 INFO L225 Difference]: With dead ends: 3930 [2020-08-21 21:24:30,105 INFO L226 Difference]: Without dead ends: 2256 [2020-08-21 21:24:30,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-21 21:24:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2020-08-21 21:24:30,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2246. [2020-08-21 21:24:30,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-08-21 21:24:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2719 transitions. [2020-08-21 21:24:30,185 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2719 transitions. Word has length 149 [2020-08-21 21:24:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:30,185 INFO L479 AbstractCegarLoop]: Abstraction has 2246 states and 2719 transitions. [2020-08-21 21:24:30,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:24:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2719 transitions. [2020-08-21 21:24:30,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-21 21:24:30,193 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:30,194 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-08-21 21:24:30,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 21:24:30,194 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:30,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:30,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1844712986, now seen corresponding path program 1 times [2020-08-21 21:24:30,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:30,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724414369] [2020-08-21 21:24:30,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:30,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:30,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:30,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 21:24:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:30,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 21:24:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:30,435 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 92 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-08-21 21:24:30,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724414369] [2020-08-21 21:24:30,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:30,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 21:24:30,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105296742] [2020-08-21 21:24:30,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 21:24:30,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:30,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 21:24:30,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-21 21:24:30,438 INFO L87 Difference]: Start difference. First operand 2246 states and 2719 transitions. Second operand 7 states. [2020-08-21 21:24:31,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:31,599 INFO L93 Difference]: Finished difference Result 5203 states and 6434 transitions. [2020-08-21 21:24:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 21:24:31,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-08-21 21:24:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:31,614 INFO L225 Difference]: With dead ends: 5203 [2020-08-21 21:24:31,614 INFO L226 Difference]: Without dead ends: 3098 [2020-08-21 21:24:31,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-21 21:24:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2020-08-21 21:24:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 2669. [2020-08-21 21:24:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-08-21 21:24:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3178 transitions. [2020-08-21 21:24:31,702 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3178 transitions. Word has length 194 [2020-08-21 21:24:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:31,702 INFO L479 AbstractCegarLoop]: Abstraction has 2669 states and 3178 transitions. [2020-08-21 21:24:31,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 21:24:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3178 transitions. [2020-08-21 21:24:31,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-08-21 21:24:31,710 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:31,711 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-21 21:24:31,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 21:24:31,711 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:31,712 INFO L82 PathProgramCache]: Analyzing trace with hash -204380159, now seen corresponding path program 1 times [2020-08-21 21:24:31,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:31,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206925841] [2020-08-21 21:24:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:31,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:31,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 21:24:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:31,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-21 21:24:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:31,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-21 21:24:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 120 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 21:24:32,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206925841] [2020-08-21 21:24:32,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:32,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 21:24:32,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474801592] [2020-08-21 21:24:32,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 21:24:32,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:32,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 21:24:32,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-21 21:24:32,009 INFO L87 Difference]: Start difference. First operand 2669 states and 3178 transitions. Second operand 11 states. [2020-08-21 21:24:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:34,369 INFO L93 Difference]: Finished difference Result 5912 states and 7150 transitions. [2020-08-21 21:24:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-21 21:24:34,370 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 211 [2020-08-21 21:24:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:34,384 INFO L225 Difference]: With dead ends: 5912 [2020-08-21 21:24:34,385 INFO L226 Difference]: Without dead ends: 3384 [2020-08-21 21:24:34,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2020-08-21 21:24:34,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2020-08-21 21:24:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3370. [2020-08-21 21:24:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3370 states. [2020-08-21 21:24:34,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 3925 transitions. [2020-08-21 21:24:34,507 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 3925 transitions. Word has length 211 [2020-08-21 21:24:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:34,507 INFO L479 AbstractCegarLoop]: Abstraction has 3370 states and 3925 transitions. [2020-08-21 21:24:34,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 21:24:34,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 3925 transitions. [2020-08-21 21:24:34,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-08-21 21:24:34,522 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:34,522 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-08-21 21:24:34,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 21:24:34,523 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:34,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash 87228715, now seen corresponding path program 1 times [2020-08-21 21:24:34,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:34,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354701376] [2020-08-21 21:24:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 21:24:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 21:24:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-21 21:24:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 175 proven. 27 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-08-21 21:24:34,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354701376] [2020-08-21 21:24:34,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:34,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 21:24:35,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779184145] [2020-08-21 21:24:35,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 21:24:35,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:35,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 21:24:35,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-21 21:24:35,001 INFO L87 Difference]: Start difference. First operand 3370 states and 3925 transitions. Second operand 10 states. [2020-08-21 21:24:35,688 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-21 21:24:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:37,685 INFO L93 Difference]: Finished difference Result 7006 states and 8205 transitions. [2020-08-21 21:24:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 21:24:37,685 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 267 [2020-08-21 21:24:37,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:37,700 INFO L225 Difference]: With dead ends: 7006 [2020-08-21 21:24:37,701 INFO L226 Difference]: Without dead ends: 3779 [2020-08-21 21:24:37,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-08-21 21:24:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2020-08-21 21:24:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3779. [2020-08-21 21:24:37,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3779 states. [2020-08-21 21:24:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 4342 transitions. [2020-08-21 21:24:37,804 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 4342 transitions. Word has length 267 [2020-08-21 21:24:37,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:37,805 INFO L479 AbstractCegarLoop]: Abstraction has 3779 states and 4342 transitions. [2020-08-21 21:24:37,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 21:24:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 4342 transitions. [2020-08-21 21:24:37,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-08-21 21:24:37,816 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 21:24:37,816 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-08-21 21:24:37,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 21:24:37,817 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 21:24:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 21:24:37,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1941606106, now seen corresponding path program 1 times [2020-08-21 21:24:37,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 21:24:37,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978845556] [2020-08-21 21:24:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 21:24:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 21:24:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-21 21:24:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-21 21:24:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-21 21:24:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-21 21:24:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-21 21:24:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 21:24:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-08-21 21:24:38,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978845556] [2020-08-21 21:24:38,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 21:24:38,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-21 21:24:38,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826946417] [2020-08-21 21:24:38,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 21:24:38,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 21:24:38,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 21:24:38,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 21:24:38,174 INFO L87 Difference]: Start difference. First operand 3779 states and 4342 transitions. Second operand 5 states. [2020-08-21 21:24:39,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 21:24:39,255 INFO L93 Difference]: Finished difference Result 7550 states and 8714 transitions. [2020-08-21 21:24:39,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 21:24:39,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2020-08-21 21:24:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 21:24:39,262 INFO L225 Difference]: With dead ends: 7550 [2020-08-21 21:24:39,262 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 21:24:39,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-21 21:24:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 21:24:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 21:24:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 21:24:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 21:24:39,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 280 [2020-08-21 21:24:39,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 21:24:39,277 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 21:24:39,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 21:24:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 21:24:39,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 21:24:39,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 21:24:39,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 21:24:39,728 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-21 21:24:39,885 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 133 [2020-08-21 21:24:40,806 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 62 [2020-08-21 21:24:41,196 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-21 21:24:41,566 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 47 [2020-08-21 21:24:41,571 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 21:24:41,572 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-21 21:24:41,572 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 21:24:41,572 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-21 21:24:41,573 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-21 21:24:41,573 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,573 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,573 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,573 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-21 21:24:41,574 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,575 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-21 21:24:41,576 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-21 21:24:41,577 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 485) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,578 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-21 21:24:41,579 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,580 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-21 21:24:41,581 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,582 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-21 21:24:41,583 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,584 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-21 21:24:41,585 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-21 21:24:41,586 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-21 21:24:41,587 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,588 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-21 21:24:41,589 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-21 21:24:41,590 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-21 21:24:41,590 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-21 21:24:41,590 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-21 21:24:41,590 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-21 21:24:41,590 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= |old(~a21~0)| 1))) (let ((.cse5 (= ~a21~0 1)) (.cse7 (= ~a16~0 4)) (.cse8 (not .cse11)) (.cse9 (not (= 4 |old(~a16~0)|))) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse12 (not (<= 5 |old(~a16~0)|))) (.cse0 (and .cse4 .cse3 (= ~a21~0 |old(~a21~0)|) .cse6 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) (.cse1 (not (= ~a12~0 8))) (.cse10 (= |old(~a7~0)| 1))) (and (or (not (<= |old(~a7~0)| 0)) .cse0 .cse1) (or (= |old(~a20~0)| 1) .cse2 .cse0 .cse1) (or (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 15) .cse7) (not (= 15 |old(~a8~0)|)) .cse8 .cse1 .cse9 .cse10) (or .cse0 .cse11 .cse1) (or (not (= |old(~a8~0)| 13)) (not (= |old(~a17~0)| 1)) (not .cse10) (and .cse3 .cse4 .cse5 .cse6 (= ~a8~0 13) .cse7) .cse8 .cse1 .cse9) (or .cse12 .cse2 .cse0 .cse1) (or .cse12 .cse0 .cse1 .cse10)))) [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,591 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-21 21:24:41,592 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,593 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-21 21:24:41,594 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-21 21:24:41,595 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-21 21:24:41,596 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-21 21:24:41,597 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 21:24:41,598 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (= ~a17~0 1)) [2020-08-21 21:24:41,598 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 21:24:41,598 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 21:24:41,598 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-21 21:24:41,598 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-21 21:24:41,598 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-21 21:24:41,599 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-21 21:24:41,599 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-21 21:24:41,599 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a7~0 1))) (let ((.cse0 (<= ~a16~0 5)) (.cse3 (= ~a16~0 4)) (.cse1 (<= 5 ~a16~0)) (.cse4 (not .cse2))) (or (and .cse0 .cse1) (and .cse0 (not (= ~a20~0 1))) (not (= |old(~a17~0)| 1)) (and .cse2 (= ~a8~0 13) .cse3 (= ~a17~0 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a8~0 15) .cse3 .cse4) (not (= |old(~a20~0)| 1)) (not (= ~a21~0 1)) (<= ~a7~0 0) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8)) (and .cse1 .cse4)))) [2020-08-21 21:24:41,599 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-21 21:24:41,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 09:24:41 BoogieIcfgContainer [2020-08-21 21:24:41,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 21:24:41,625 INFO L168 Benchmark]: Toolchain (without parser) took 26432.11 ms. Allocated memory was 140.0 MB in the beginning and 561.0 MB in the end (delta: 421.0 MB). Free memory was 101.4 MB in the beginning and 298.0 MB in the end (delta: -196.6 MB). Peak memory consumption was 442.3 MB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,626 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.86 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.2 MB in the beginning and 169.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,628 INFO L168 Benchmark]: Boogie Preprocessor took 158.94 ms. Allocated memory is still 205.5 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,629 INFO L168 Benchmark]: RCFGBuilder took 1323.12 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 164.5 MB in the beginning and 178.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,630 INFO L168 Benchmark]: TraceAbstraction took 24088.85 ms. Allocated memory was 239.1 MB in the beginning and 561.0 MB in the end (delta: 321.9 MB). Free memory was 178.6 MB in the beginning and 298.0 MB in the end (delta: -119.4 MB). Peak memory consumption was 420.3 MB. Max. memory is 7.1 GB. [2020-08-21 21:24:41,634 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 855.86 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.2 MB in the beginning and 169.5 MB in the end (delta: -68.3 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.94 ms. Allocated memory is still 205.5 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1323.12 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 164.5 MB in the beginning and 178.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24088.85 ms. Allocated memory was 239.1 MB in the beginning and 561.0 MB in the end (delta: 321.9 MB). Free memory was 178.6 MB in the beginning and 298.0 MB in the end (delta: -119.4 MB). Peak memory consumption was 420.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 485]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((a16 <= 5 && 5 <= a16) || (a16 <= 5 && !(a20 == 1))) || !(\old(a17) == 1)) || (((a7 == 1 && a8 == 13) && a16 == 4) && a17 == 1)) || !(\old(a7) <= 0)) || ((a8 == 15 && a16 == 4) && !(a7 == 1))) || !(\old(a20) == 1)) || !(a21 == 1)) || a7 <= 0) || !(5 == \old(a16))) || !(a12 == 8)) || (5 <= a16 && !(a7 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.6s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 5821 SDslu, 393 SDs, 0 SdLazy, 8868 SolverSat, 1432 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3779occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 793 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 151 PreInvPairs, 211 NumberOfFragments, 498 HoareAnnotationTreeSize, 151 FomulaSimplifications, 93427 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 9529 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1838 NumberOfCodeBlocks, 1838 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1827 ConstructedInterpolants, 0 QuantifiedInterpolants, 1331029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 1004/1099 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...