/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 03:52:57,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 03:52:57,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 03:52:57,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 03:52:57,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 03:52:57,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 03:52:57,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 03:52:57,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 03:52:57,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 03:52:57,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 03:52:57,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 03:52:57,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 03:52:57,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 03:52:57,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 03:52:57,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 03:52:57,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 03:52:57,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 03:52:57,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 03:52:57,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 03:52:57,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 03:52:57,497 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 03:52:57,540 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 03:52:57,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 03:52:57,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 03:52:57,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 03:52:57,545 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 03:52:57,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 03:52:57,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 03:52:57,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 03:52:57,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 03:52:57,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 03:52:57,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 03:52:57,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 03:52:57,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 03:52:57,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 03:52:57,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 03:52:57,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 03:52:57,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 03:52:57,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 03:52:57,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 03:52:57,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 03:52:57,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 03:52:57,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 03:52:57,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 03:52:57,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 03:52:57,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 03:52:57,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 03:52:57,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 03:52:57,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 03:52:57,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 03:52:57,552 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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-08-22 03:52:57,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 03:52:57,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 03:52:57,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 03:52:57,920 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 03:52:57,920 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 03:52:57,921 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-08-22 03:52:57,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89276b485/d9f403ba4f7447b7b765a51c32431e3e/FLAG64aacba29 [2020-08-22 03:52:58,612 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 03:52:58,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-08-22 03:52:58,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89276b485/d9f403ba4f7447b7b765a51c32431e3e/FLAG64aacba29 [2020-08-22 03:52:58,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89276b485/d9f403ba4f7447b7b765a51c32431e3e [2020-08-22 03:52:58,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 03:52:58,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 03:52:58,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 03:52:58,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 03:52:58,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 03:52:58,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:52:58" (1/1) ... [2020-08-22 03:52:58,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4757cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:58, skipping insertion in model container [2020-08-22 03:52:58,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 03:52:58" (1/1) ... [2020-08-22 03:52:58,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 03:52:58,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 03:52:59,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:52:59,395 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 03:52:59,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 03:52:59,576 INFO L208 MainTranslator]: Completed translation [2020-08-22 03:52:59,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59 WrapperNode [2020-08-22 03:52:59,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 03:52:59,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 03:52:59,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 03:52:59,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 03:52:59,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (1/1) ... [2020-08-22 03:52:59,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 03:52:59,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 03:52:59,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 03:52:59,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 03:52:59,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (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 03:52:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 03:52:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 03:52:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 03:52:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 03:52:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 03:52:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 03:52:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 03:52:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 03:52:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 03:52:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 03:52:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 03:53:00,944 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 03:53:00,944 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 03:53:00,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:53:00 BoogieIcfgContainer [2020-08-22 03:53:00,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 03:53:00,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 03:53:00,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 03:53:00,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 03:53:00,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 03:52:58" (1/3) ... [2020-08-22 03:53:00,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b976d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:53:00, skipping insertion in model container [2020-08-22 03:53:00,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 03:52:59" (2/3) ... [2020-08-22 03:53:00,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b976d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 03:53:00, skipping insertion in model container [2020-08-22 03:53:00,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 03:53:00" (3/3) ... [2020-08-22 03:53:00,960 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2020-08-22 03:53:00,972 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 03:53:00,980 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 03:53:00,995 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 03:53:01,024 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 03:53:01,024 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 03:53:01,024 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 03:53:01,024 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 03:53:01,025 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 03:53:01,025 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 03:53:01,025 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 03:53:01,025 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 03:53:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 03:53:01,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-22 03:53:01,064 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:53:01,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:01,066 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:53:01,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:53:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash -185558457, now seen corresponding path program 1 times [2020-08-22 03:53:01,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:53:01,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635836124] [2020-08-22 03:53:01,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:53:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:01,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:53:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:53:01,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635836124] [2020-08-22 03:53:01,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 03:53:01,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 03:53:01,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644081755] [2020-08-22 03:53:01,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:53:01,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:53:01,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:53:01,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:53:01,762 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 03:53:03,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:53:03,964 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-22 03:53:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 03:53:03,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-08-22 03:53:03,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:53:03,994 INFO L225 Difference]: With dead ends: 698 [2020-08-22 03:53:03,994 INFO L226 Difference]: Without dead ends: 423 [2020-08-22 03:53:04,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:53:04,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-22 03:53:04,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-22 03:53:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-22 03:53:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2020-08-22 03:53:04,093 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 133 [2020-08-22 03:53:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:53:04,096 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2020-08-22 03:53:04,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:53:04,096 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2020-08-22 03:53:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-08-22 03:53:04,102 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:53:04,102 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:04,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 03:53:04,103 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:53:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:53:04,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1172769370, now seen corresponding path program 1 times [2020-08-22 03:53:04,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:53:04,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229487193] [2020-08-22 03:53:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:53:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:04,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:53:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:04,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:53:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:53:04,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229487193] [2020-08-22 03:53:04,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:53:04,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 03:53:04,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051405292] [2020-08-22 03:53:04,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:53:04,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:53:04,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:53:04,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:53:04,426 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand 5 states. [2020-08-22 03:53:05,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:53:05,548 INFO L93 Difference]: Finished difference Result 1245 states and 1837 transitions. [2020-08-22 03:53:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:53:05,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-08-22 03:53:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:53:05,559 INFO L225 Difference]: With dead ends: 1245 [2020-08-22 03:53:05,559 INFO L226 Difference]: Without dead ends: 834 [2020-08-22 03:53:05,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 03:53:05,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-22 03:53:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 693. [2020-08-22 03:53:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-08-22 03:53:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 960 transitions. [2020-08-22 03:53:05,621 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 960 transitions. Word has length 150 [2020-08-22 03:53:05,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:53:05,622 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 960 transitions. [2020-08-22 03:53:05,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:53:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 960 transitions. [2020-08-22 03:53:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-22 03:53:05,628 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:53:05,629 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:53:05,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 03:53:05,629 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:53:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:53:05,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1459290151, now seen corresponding path program 1 times [2020-08-22 03:53:05,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:53:05,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605184591] [2020-08-22 03:53:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:53:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:05,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:53:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:53:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 03:53:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 03:53:05,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605184591] [2020-08-22 03:53:05,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:53:05,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 03:53:05,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48622930] [2020-08-22 03:53:05,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 03:53:05,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:53:05,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 03:53:05,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 03:53:06,002 INFO L87 Difference]: Start difference. First operand 693 states and 960 transitions. Second operand 7 states. [2020-08-22 03:53:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:53:07,380 INFO L93 Difference]: Finished difference Result 1690 states and 2417 transitions. [2020-08-22 03:53:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 03:53:07,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-08-22 03:53:07,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:53:07,393 INFO L225 Difference]: With dead ends: 1690 [2020-08-22 03:53:07,393 INFO L226 Difference]: Without dead ends: 1003 [2020-08-22 03:53:07,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-22 03:53:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-08-22 03:53:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 838. [2020-08-22 03:53:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-08-22 03:53:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1143 transitions. [2020-08-22 03:53:07,471 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1143 transitions. Word has length 187 [2020-08-22 03:53:07,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:53:07,472 INFO L479 AbstractCegarLoop]: Abstraction has 838 states and 1143 transitions. [2020-08-22 03:53:07,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 03:53:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1143 transitions. [2020-08-22 03:53:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-08-22 03:53:07,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:53:07,486 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 03:53:07,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 03:53:07,487 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:53:07,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:53:07,487 INFO L82 PathProgramCache]: Analyzing trace with hash -724931681, now seen corresponding path program 1 times [2020-08-22 03:53:07,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:53:07,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879118800] [2020-08-22 03:53:07,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:53:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:07,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:53:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:07,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:53:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:07,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 03:53:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 03:53:07,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879118800] [2020-08-22 03:53:07,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:53:07,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 03:53:07,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319193145] [2020-08-22 03:53:07,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:53:07,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:53:07,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:53:07,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:53:07,869 INFO L87 Difference]: Start difference. First operand 838 states and 1143 transitions. Second operand 5 states. [2020-08-22 03:53:09,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:53:09,451 INFO L93 Difference]: Finished difference Result 2226 states and 3078 transitions. [2020-08-22 03:53:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:53:09,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-08-22 03:53:09,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:53:09,463 INFO L225 Difference]: With dead ends: 2226 [2020-08-22 03:53:09,464 INFO L226 Difference]: Without dead ends: 1394 [2020-08-22 03:53:09,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 03:53:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-08-22 03:53:09,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1118. [2020-08-22 03:53:09,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1118 states. [2020-08-22 03:53:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1445 transitions. [2020-08-22 03:53:09,535 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1445 transitions. Word has length 191 [2020-08-22 03:53:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:53:09,537 INFO L479 AbstractCegarLoop]: Abstraction has 1118 states and 1445 transitions. [2020-08-22 03:53:09,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:53:09,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1445 transitions. [2020-08-22 03:53:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-08-22 03:53:09,543 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 03:53:09,543 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, 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, 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] [2020-08-22 03:53:09,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 03:53:09,544 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 03:53:09,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 03:53:09,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1737514038, now seen corresponding path program 1 times [2020-08-22 03:53:09,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 03:53:09,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541997856] [2020-08-22 03:53:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 03:53:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:09,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 03:53:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:09,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 03:53:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 03:53:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 03:53:09,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541997856] [2020-08-22 03:53:09,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 03:53:09,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 03:53:09,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580661559] [2020-08-22 03:53:09,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 03:53:09,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 03:53:09,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 03:53:09,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 03:53:09,836 INFO L87 Difference]: Start difference. First operand 1118 states and 1445 transitions. Second operand 5 states. [2020-08-22 03:53:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 03:53:10,850 INFO L93 Difference]: Finished difference Result 2645 states and 3485 transitions. [2020-08-22 03:53:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 03:53:10,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-08-22 03:53:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 03:53:10,852 INFO L225 Difference]: With dead ends: 2645 [2020-08-22 03:53:10,852 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 03:53:10,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 03:53:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 03:53:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 03:53:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 03:53:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 03:53:10,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2020-08-22 03:53:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 03:53:10,859 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 03:53:10,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 03:53:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 03:53:10,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 03:53:10,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 03:53:10,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 03:53:11,531 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 46 [2020-08-22 03:53:11,624 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:53:11,624 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-22 03:53:11,624 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:53:11,625 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,626 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 03:53:11,627 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,628 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,629 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 03:53:11,631 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 03:53:11,632 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 03:53:11,633 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,634 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,635 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 03:53:11,636 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 03:53:11,637 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 03:53:11,638 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 03:53:11,639 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 03:53:11,640 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 03:53:11,641 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,642 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 03:53:11,643 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 03:53:11,644 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 03:53:11,645 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 03:53:11,646 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 03:53:11,646 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse5 (not (= |old(~a21~0)| 1))) (.cse6 (and .cse0 .cse1 .cse2 .cse3 (= ~a16~0 |old(~a16~0)|) .cse4)) (.cse7 (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a16~0 4))) (.cse8 (not (= 4 |old(~a16~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse5) (or (not (<= 15 |old(~a8~0)|)) .cse6 .cse5) (or .cse7 .cse5 .cse8) (or (not (= |old(~a20~0)| 1)) .cse6) (or .cse7 (= 14 |old(~a8~0)|) .cse8)))) [2020-08-22 03:53:11,646 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 03:53:11,646 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,646 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 03:53:11,647 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 03:53:11,648 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,649 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 03:53:11,650 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 03:53:11,651 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 03:53:11,652 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 03:53:11,653 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 03:53:11,654 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 03:53:11,654 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0)) [2020-08-22 03:53:11,654 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 03:53:11,654 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 03:53:11,654 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-22 03:53:11,654 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 03:53:11,655 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a16~0 4))) (or (and .cse0 (= 5 ~a16~0)) (and .cse0 (<= 15 ~a8~0)) (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (and (not (= 14 ~a8~0)) .cse1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-08-22 03:53:11,655 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 03:53:11,655 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 03:53:11,655 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1)) (.cse1 (= ~a16~0 4))) (or (and .cse0 (= 5 ~a16~0)) (and .cse0 (<= 15 ~a8~0)) (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (and (not (= 14 ~a8~0)) .cse1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-08-22 03:53:11,655 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 03:53:11,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 03:53:11 BoogieIcfgContainer [2020-08-22 03:53:11,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 03:53:11,677 INFO L168 Benchmark]: Toolchain (without parser) took 12834.59 ms. Allocated memory was 139.5 MB in the beginning and 416.3 MB in the end (delta: 276.8 MB). Free memory was 100.5 MB in the beginning and 311.9 MB in the end (delta: -211.4 MB). Peak memory consumption was 243.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,678 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.42 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 168.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,680 INFO L168 Benchmark]: Boogie Preprocessor took 105.43 ms. Allocated memory is still 204.5 MB. Free memory was 168.7 MB in the beginning and 163.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,681 INFO L168 Benchmark]: RCFGBuilder took 1268.22 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 177.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,682 INFO L168 Benchmark]: TraceAbstraction took 10722.66 ms. Allocated memory was 237.5 MB in the beginning and 416.3 MB in the end (delta: 178.8 MB). Free memory was 177.5 MB in the beginning and 311.9 MB in the end (delta: -134.4 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2020-08-22 03:53:11,686 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.42 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.3 MB in the beginning and 168.7 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.43 ms. Allocated memory is still 204.5 MB. Free memory was 168.7 MB in the beginning and 163.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1268.22 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 177.5 MB in the end (delta: -13.6 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10722.66 ms. Allocated memory was 237.5 MB in the beginning and 416.3 MB in the end (delta: 178.8 MB). Free memory was 177.5 MB in the beginning and 311.9 MB in the end (delta: -134.4 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((a21 == 1 && 5 == a16) || (a21 == 1 && 15 <= a8)) || (a21 == 1 && a16 == 4)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || a20 == 1) || (!(14 == a8) && a16 == 4)) || !(5 == \old(a16))) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 122 SDtfs, 1909 SDslu, 119 SDs, 0 SdLazy, 3188 SolverSat, 846 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1118occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 588 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 41 PreInvPairs, 65 NumberOfFragments, 342 HoareAnnotationTreeSize, 41 FomulaSimplifications, 12806 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 859 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 867 NumberOfCodeBlocks, 867 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 862 ConstructedInterpolants, 0 QuantifiedInterpolants, 429696 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 204/210 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...