/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/Problem02_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:42:36,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:42:36,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:42:36,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 04:42:36,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:42:36,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:42:36,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:42:36,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:42:36,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:42:36,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:42:36,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:42:36,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:42:36,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:42:36,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:42:36,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:42:36,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:42:36,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 04:42:36,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:42:36,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:42:36,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:42:36,634 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 [2020-08-22 04:42:36,655 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:42:36,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:42:36,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:42:36,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:42:36,657 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:42:36,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:42:36,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:42:36,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:42:36,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:42:36,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:42:36,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:42:36,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:42:36,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:42:36,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:42:36,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:42:36,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:42:36,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:42:36,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:42:36,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:42:36,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:42:36,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:42:36,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:42:36,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:42:36,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:42:36,662 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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-08-22 04:42:36,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:42:37,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:42:37,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:42:37,013 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:42:37,013 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:42:37,014 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-22 04:42:37,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d40d8833a/953314a4a09f47a9ba2f7e7baf77d8df/FLAGc69edc6fd [2020-08-22 04:42:37,564 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:42:37,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-22 04:42:37,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d40d8833a/953314a4a09f47a9ba2f7e7baf77d8df/FLAGc69edc6fd [2020-08-22 04:42:37,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d40d8833a/953314a4a09f47a9ba2f7e7baf77d8df [2020-08-22 04:42:37,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:42:37,924 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:42:37,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:42:37,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:42:37,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:42:37,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:42:37" (1/1) ... [2020-08-22 04:42:37,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:37, skipping insertion in model container [2020-08-22 04:42:37,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:42:37" (1/1) ... [2020-08-22 04:42:37,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:42:38,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:42:38,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:42:38,621 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:42:38,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:42:38,769 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:42:38,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38 WrapperNode [2020-08-22 04:42:38,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:42:38,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:42:38,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:42:38,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:42:38,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (1/1) ... [2020-08-22 04:42:38,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:42:38,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:42:38,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:42:38,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:42:38,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (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 [2020-08-22 04:42:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:42:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:42:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 04:42:38,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:42:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 04:42:38,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:42:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:42:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 04:42:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:42:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:42:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:42:40,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:42:40,197 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 04:42:40,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:42:40 BoogieIcfgContainer [2020-08-22 04:42:40,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:42:40,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:42:40,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:42:40,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:42:40,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:42:37" (1/3) ... [2020-08-22 04:42:40,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941d6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:42:40, skipping insertion in model container [2020-08-22 04:42:40,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:42:38" (2/3) ... [2020-08-22 04:42:40,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3941d6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:42:40, skipping insertion in model container [2020-08-22 04:42:40,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:42:40" (3/3) ... [2020-08-22 04:42:40,215 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-08-22 04:42:40,224 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:42:40,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:42:40,247 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:42:40,270 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:42:40,271 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:42:40,271 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:42:40,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:42:40,271 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:42:40,272 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:42:40,272 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:42:40,272 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:42:40,305 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-22 04:42:40,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 04:42:40,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:40,322 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] [2020-08-22 04:42:40,323 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:40,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:40,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1487720814, now seen corresponding path program 1 times [2020-08-22 04:42:40,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:40,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051326651] [2020-08-22 04:42:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:40,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:42:40,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051326651] [2020-08-22 04:42:40,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:42:40,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 04:42:40,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208104183] [2020-08-22 04:42:40,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 04:42:40,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:40,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 04:42:40,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 04:42:40,953 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-22 04:42:42,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:42,696 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-08-22 04:42:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 04:42:42,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-08-22 04:42:42,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:42,729 INFO L225 Difference]: With dead ends: 627 [2020-08-22 04:42:42,729 INFO L226 Difference]: Without dead ends: 327 [2020-08-22 04:42:42,745 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 [2020-08-22 04:42:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-22 04:42:42,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-08-22 04:42:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-22 04:42:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-08-22 04:42:42,829 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 102 [2020-08-22 04:42:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:42,832 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-08-22 04:42:42,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 04:42:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-08-22 04:42:42,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-22 04:42:42,838 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:42,838 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 04:42:42,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:42:42,839 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:42,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:42,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1854436435, now seen corresponding path program 1 times [2020-08-22 04:42:42,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:42,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937778849] [2020-08-22 04:42:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:42,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:42:43,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937778849] [2020-08-22 04:42:43,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:42:43,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:42:43,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175967554] [2020-08-22 04:42:43,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:42:43,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:43,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:42:43,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:42:43,017 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-08-22 04:42:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:43,930 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-08-22 04:42:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 04:42:43,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-08-22 04:42:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:43,937 INFO L225 Difference]: With dead ends: 635 [2020-08-22 04:42:43,938 INFO L226 Difference]: Without dead ends: 322 [2020-08-22 04:42:43,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:42:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-08-22 04:42:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-08-22 04:42:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-22 04:42:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-08-22 04:42:43,991 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 117 [2020-08-22 04:42:43,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:43,992 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-08-22 04:42:43,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:42:43,992 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-08-22 04:42:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-22 04:42:43,998 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:43,999 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:44,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:42:44,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1506178426, now seen corresponding path program 1 times [2020-08-22 04:42:44,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:44,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745459405] [2020-08-22 04:42:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:44,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:42:44,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745459405] [2020-08-22 04:42:44,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:42:44,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:42:44,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581761471] [2020-08-22 04:42:44,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:42:44,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:44,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:42:44,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:42:44,281 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-08-22 04:42:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:46,168 INFO L93 Difference]: Finished difference Result 1088 states and 1576 transitions. [2020-08-22 04:42:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 04:42:46,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-08-22 04:42:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:46,177 INFO L225 Difference]: With dead ends: 1088 [2020-08-22 04:42:46,178 INFO L226 Difference]: Without dead ends: 784 [2020-08-22 04:42:46,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:42:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-08-22 04:42:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 612. [2020-08-22 04:42:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-22 04:42:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 841 transitions. [2020-08-22 04:42:46,239 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 841 transitions. Word has length 124 [2020-08-22 04:42:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:46,240 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 841 transitions. [2020-08-22 04:42:46,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:42:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 841 transitions. [2020-08-22 04:42:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-22 04:42:46,244 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:46,245 INFO L422 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:46,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:42:46,245 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:46,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash -683087106, now seen corresponding path program 1 times [2020-08-22 04:42:46,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:46,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835914876] [2020-08-22 04:42:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:46,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:46,745 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:42:46,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835914876] [2020-08-22 04:42:46,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:42:46,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 04:42:46,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004582495] [2020-08-22 04:42:46,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 04:42:46,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:46,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 04:42:46,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 04:42:46,751 INFO L87 Difference]: Start difference. First operand 612 states and 841 transitions. Second operand 6 states. [2020-08-22 04:42:48,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:48,030 INFO L93 Difference]: Finished difference Result 1317 states and 1854 transitions. [2020-08-22 04:42:48,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 04:42:48,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-08-22 04:42:48,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:48,037 INFO L225 Difference]: With dead ends: 1317 [2020-08-22 04:42:48,037 INFO L226 Difference]: Without dead ends: 625 [2020-08-22 04:42:48,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:42:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2020-08-22 04:42:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 612. [2020-08-22 04:42:48,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-22 04:42:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 825 transitions. [2020-08-22 04:42:48,072 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 825 transitions. Word has length 128 [2020-08-22 04:42:48,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:48,073 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 825 transitions. [2020-08-22 04:42:48,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 04:42:48,073 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 825 transitions. [2020-08-22 04:42:48,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 04:42:48,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:48,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:48,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:42:48,077 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:48,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:48,077 INFO L82 PathProgramCache]: Analyzing trace with hash 235752310, now seen corresponding path program 1 times [2020-08-22 04:42:48,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:48,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655373356] [2020-08-22 04:42:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:48,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:48,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:48,291 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:42:48,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655373356] [2020-08-22 04:42:48,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:42:48,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 04:42:48,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892661855] [2020-08-22 04:42:48,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:42:48,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:48,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:42:48,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:42:48,293 INFO L87 Difference]: Start difference. First operand 612 states and 825 transitions. Second operand 8 states. [2020-08-22 04:42:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:50,389 INFO L93 Difference]: Finished difference Result 2151 states and 3020 transitions. [2020-08-22 04:42:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 04:42:50,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-22 04:42:50,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:50,407 INFO L225 Difference]: With dead ends: 2151 [2020-08-22 04:42:50,407 INFO L226 Difference]: Without dead ends: 1545 [2020-08-22 04:42:50,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-22 04:42:50,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2020-08-22 04:42:50,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1381. [2020-08-22 04:42:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1381 states. [2020-08-22 04:42:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1813 transitions. [2020-08-22 04:42:50,499 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1813 transitions. Word has length 132 [2020-08-22 04:42:50,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:50,500 INFO L479 AbstractCegarLoop]: Abstraction has 1381 states and 1813 transitions. [2020-08-22 04:42:50,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:42:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1813 transitions. [2020-08-22 04:42:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-22 04:42:50,506 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:50,506 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:50,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 04:42:50,508 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:50,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:50,508 INFO L82 PathProgramCache]: Analyzing trace with hash 701787778, now seen corresponding path program 1 times [2020-08-22 04:42:50,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:50,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680667685] [2020-08-22 04:42:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:50,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:50,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:50,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 04:42:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:50,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-08-22 04:42:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 44 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-22 04:42:50,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680667685] [2020-08-22 04:42:50,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:42:50,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 04:42:50,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668010386] [2020-08-22 04:42:50,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:42:50,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:50,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:42:50,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:42:50,722 INFO L87 Difference]: Start difference. First operand 1381 states and 1813 transitions. Second operand 9 states. [2020-08-22 04:42:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:52,846 INFO L93 Difference]: Finished difference Result 3221 states and 4262 transitions. [2020-08-22 04:42:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 04:42:52,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 149 [2020-08-22 04:42:52,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:52,856 INFO L225 Difference]: With dead ends: 3221 [2020-08-22 04:42:52,857 INFO L226 Difference]: Without dead ends: 1846 [2020-08-22 04:42:52,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:42:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2020-08-22 04:42:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1689. [2020-08-22 04:42:52,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2020-08-22 04:42:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2175 transitions. [2020-08-22 04:42:52,929 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2175 transitions. Word has length 149 [2020-08-22 04:42:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:52,929 INFO L479 AbstractCegarLoop]: Abstraction has 1689 states and 2175 transitions. [2020-08-22 04:42:52,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:42:52,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2175 transitions. [2020-08-22 04:42:52,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 04:42:52,935 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:52,936 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:52,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 04:42:52,937 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:52,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:52,937 INFO L82 PathProgramCache]: Analyzing trace with hash -231059206, now seen corresponding path program 1 times [2020-08-22 04:42:52,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:52,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [670562828] [2020-08-22 04:42:52,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:53,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:53,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 04:42:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:53,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 04:42:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-22 04:42:53,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [670562828] [2020-08-22 04:42:53,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:42:53,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 04:42:53,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449950036] [2020-08-22 04:42:53,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 04:42:53,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 04:42:53,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 04:42:53,263 INFO L87 Difference]: Start difference. First operand 1689 states and 2175 transitions. Second operand 8 states. [2020-08-22 04:42:55,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:55,362 INFO L93 Difference]: Finished difference Result 3745 states and 5141 transitions. [2020-08-22 04:42:55,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 04:42:55,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-08-22 04:42:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:55,377 INFO L225 Difference]: With dead ends: 3745 [2020-08-22 04:42:55,378 INFO L226 Difference]: Without dead ends: 2062 [2020-08-22 04:42:55,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-08-22 04:42:55,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2020-08-22 04:42:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 1999. [2020-08-22 04:42:55,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2020-08-22 04:42:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2509 transitions. [2020-08-22 04:42:55,460 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2509 transitions. Word has length 153 [2020-08-22 04:42:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:55,460 INFO L479 AbstractCegarLoop]: Abstraction has 1999 states and 2509 transitions. [2020-08-22 04:42:55,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 04:42:55,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2509 transitions. [2020-08-22 04:42:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 04:42:55,467 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:42:55,467 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 04:42:55,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 04:42:55,468 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:42:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:42:55,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1934986668, now seen corresponding path program 1 times [2020-08-22 04:42:55,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:42:55,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315222263] [2020-08-22 04:42:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:42:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:55,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:42:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:55,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 04:42:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:55,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-08-22 04:42:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:42:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:42:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-22 04:42:55,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315222263] [2020-08-22 04:42:55,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 04:42:55,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 04:42:55,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242318024] [2020-08-22 04:42:55,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 04:42:55,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:42:55,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 04:42:55,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 04:42:55,624 INFO L87 Difference]: Start difference. First operand 1999 states and 2509 transitions. Second operand 7 states. [2020-08-22 04:42:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:42:57,591 INFO L93 Difference]: Finished difference Result 6107 states and 8119 transitions. [2020-08-22 04:42:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 04:42:57,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-08-22 04:42:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:42:57,592 INFO L225 Difference]: With dead ends: 6107 [2020-08-22 04:42:57,593 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 04:42:57,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 04:42:57,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 04:42:57,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 04:42:57,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 04:42:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 04:42:57,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-08-22 04:42:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:42:57,612 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 04:42:57,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 04:42:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 04:42:57,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 04:42:57,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 04:42:57,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 04:42:58,380 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-22 04:42:58,660 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 145 [2020-08-22 04:42:59,248 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 52 [2020-08-22 04:42:59,682 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-22 04:43:00,089 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 39 [2020-08-22 04:43:00,093 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 04:43:00,094 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-08-22 04:43:00,094 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 04:43:00,094 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,094 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,094 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,095 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,095 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,095 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-22 04:43:00,095 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-22 04:43:00,096 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,097 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-22 04:43:00,098 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-22 04:43:00,099 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,100 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 460) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-22 04:43:00,101 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,102 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-22 04:43:00,103 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,104 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-22 04:43:00,105 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-22 04:43:00,106 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-22 04:43:00,107 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-22 04:43:00,108 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-22 04:43:00,109 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-22 04:43:00,110 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-22 04:43:00,111 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-22 04:43:00,112 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-22 04:43:00,113 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,114 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse6 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (= ~a17~0 |old(~a17~0)|) .cse3 .cse6 .cse4)) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse2 (not (= ~a21~0 1)))) (and (or (= |old(~a19~0)| 1) .cse0 .cse1 .cse2) (or (and (= 7 ~a17~0) .cse3 (= 7 ~a28~0) (= ~a25~0 1) .cse4) (not (= |old(~a25~0)| 1)) (not (= 7 |old(~a17~0)|)) .cse2 (not (= 7 |old(~a28~0)|)) (not (= |old(~a11~0)| 1))) (or (= 8 |old(~a28~0)|) .cse0 .cse1 (not (<= |old(~a25~0)| 0)) .cse2) (or .cse0 (not (<= 8 |old(~a17~0)|)) .cse2 (and .cse5 .cse3 .cse6 (<= 8 ~a17~0) (<= ~a17~0 8) .cse4))))) [2020-08-22 04:43:00,114 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-22 04:43:00,115 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-22 04:43:00,116 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-22 04:43:00,117 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-22 04:43:00,118 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 04:43:00,119 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-22 04:43:00,120 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-22 04:43:00,121 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-22 04:43:00,122 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 04:43:00,122 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-08-22 04:43:00,122 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 04:43:00,122 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 04:43:00,122 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|))) [2020-08-22 04:43:00,122 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-22 04:43:00,122 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-22 04:43:00,123 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-22 04:43:00,123 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (<= 8 |old(~a17~0)|)) (and (<= 8 ~a17~0) .cse0) (not (<= |old(~a25~0)| 0)) (not (= ~a21~0 1)) (and (not (= ~a19~0 1)) .cse0) (and (not (= ~a28~0 8)) .cse0 (<= ~a25~0 0)) (and (= 7 ~a17~0) (= 7 ~a28~0) (= ~a25~0 1) (= ~a11~0 1)))) [2020-08-22 04:43:00,123 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-22 04:43:00,123 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-22 04:43:00,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:43:00 BoogieIcfgContainer [2020-08-22 04:43:00,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 04:43:00,150 INFO L168 Benchmark]: Toolchain (without parser) took 22226.01 ms. Allocated memory was 140.0 MB in the beginning and 522.7 MB in the end (delta: 382.7 MB). Free memory was 101.3 MB in the beginning and 167.3 MB in the end (delta: -66.0 MB). Peak memory consumption was 354.7 MB. Max. memory is 7.1 GB. [2020-08-22 04:43:00,151 INFO L168 Benchmark]: CDTParser took 0.20 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. [2020-08-22 04:43:00,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.70 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 170.1 MB in the end (delta: -69.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-08-22 04:43:00,153 INFO L168 Benchmark]: Boogie Preprocessor took 107.43 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-08-22 04:43:00,154 INFO L168 Benchmark]: RCFGBuilder took 1328.95 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 165.1 MB in the beginning and 180.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-08-22 04:43:00,155 INFO L168 Benchmark]: TraceAbstraction took 19940.47 ms. Allocated memory was 238.0 MB in the beginning and 522.7 MB in the end (delta: 284.7 MB). Free memory was 180.6 MB in the beginning and 167.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 336.0 MB. Max. memory is 7.1 GB. [2020-08-22 04:43:00,159 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 842.70 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 170.1 MB in the end (delta: -69.0 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.43 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1328.95 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 165.1 MB in the beginning and 180.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19940.47 ms. Allocated memory was 238.0 MB in the beginning and 522.7 MB in the end (delta: 284.7 MB). Free memory was 180.6 MB in the beginning and 167.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 336.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 460]: 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: 606]: Loop Invariant Derived loop invariant: (((((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(8 <= \old(a17))) || (8 <= a17 && a17 <= 8)) || !(\old(a25) <= 0)) || !(a21 == 1)) || (!(a19 == 1) && a17 <= 8)) || ((!(a28 == 8) && a17 <= 8) && a25 <= 0)) || (((7 == a17 && 7 == a28) && a25 == 1) && a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 318 SDtfs, 5060 SDslu, 482 SDs, 0 SdLazy, 7930 SolverSat, 1510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1999occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 589 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 100 PreInvPairs, 196 NumberOfFragments, 359 HoareAnnotationTreeSize, 100 FomulaSimplifications, 404553 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8817 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1066 NumberOfCodeBlocks, 1066 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1058 ConstructedInterpolants, 0 QuantifiedInterpolants, 498512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 273/298 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...