/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 00:38:17,196 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-22 00:38:17,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 00:38:17,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 00:38:17,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 00:38:17,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 00:38:17,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 00:38:17,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 00:38:17,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 00:38:17,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 00:38:17,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 00:38:17,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 00:38:17,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 00:38:17,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 00:38:17,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 00:38:17,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 00:38:17,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 00:38:17,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 00:38:17,321 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 00:38:17,359 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 00:38:17,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 00:38:17,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 00:38:17,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 00:38:17,361 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 00:38:17,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 00:38:17,362 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 00:38:17,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 00:38:17,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 00:38:17,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 00:38:17,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 00:38:17,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 00:38:17,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 00:38:17,365 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 00:38:17,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 00:38:17,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 00:38:17,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 00:38:17,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 00:38:17,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 00:38:17,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 00:38:17,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 00:38:17,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 00:38:17,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 00:38:17,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 00:38:17,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 00:38:17,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 00:38:17,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 00:38:17,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 00:38:17,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 00:38:17,369 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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-08-22 00:38:17,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 00:38:17,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 00:38:17,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 00:38:17,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 00:38:17,695 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 00:38:17,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-08-22 00:38:17,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef4a43fa/5afb6ed60ed749879755b80a37336cbf/FLAG6b1fa4950 [2020-08-22 00:38:18,333 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 00:38:18,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label39.c [2020-08-22 00:38:18,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef4a43fa/5afb6ed60ed749879755b80a37336cbf/FLAG6b1fa4950 [2020-08-22 00:38:18,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fef4a43fa/5afb6ed60ed749879755b80a37336cbf [2020-08-22 00:38:18,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 00:38:18,591 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 00:38:18,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 00:38:18,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 00:38:18,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 00:38:18,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:38:18" (1/1) ... [2020-08-22 00:38:18,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:18, skipping insertion in model container [2020-08-22 00:38:18,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 12:38:18" (1/1) ... [2020-08-22 00:38:18,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 00:38:18,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 00:38:19,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:38:19,243 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 00:38:19,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 00:38:19,473 INFO L208 MainTranslator]: Completed translation [2020-08-22 00:38:19,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19 WrapperNode [2020-08-22 00:38:19,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 00:38:19,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 00:38:19,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 00:38:19,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 00:38:19,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (1/1) ... [2020-08-22 00:38:19,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 00:38:19,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 00:38:19,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 00:38:19,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 00:38:19,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (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 00:38:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 00:38:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 00:38:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 00:38:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 00:38:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 00:38:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 00:38:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 00:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 00:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 00:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 00:38:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 00:38:20,832 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 00:38:20,832 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 00:38:20,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:38:20 BoogieIcfgContainer [2020-08-22 00:38:20,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 00:38:20,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 00:38:20,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 00:38:20,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 00:38:20,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 12:38:18" (1/3) ... [2020-08-22 00:38:20,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c4ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:38:20, skipping insertion in model container [2020-08-22 00:38:20,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 12:38:19" (2/3) ... [2020-08-22 00:38:20,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303c4ccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:38:20, skipping insertion in model container [2020-08-22 00:38:20,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:38:20" (3/3) ... [2020-08-22 00:38:20,848 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label39.c [2020-08-22 00:38:20,858 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 00:38:20,867 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 00:38:20,882 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 00:38:20,909 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 00:38:20,909 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 00:38:20,909 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 00:38:20,910 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 00:38:20,910 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 00:38:20,910 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 00:38:20,910 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 00:38:20,910 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 00:38:20,935 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 00:38:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-08-22 00:38:20,950 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:20,951 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, 1, 1, 1, 1, 1] [2020-08-22 00:38:20,951 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:20,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:20,959 INFO L82 PathProgramCache]: Analyzing trace with hash -223585418, now seen corresponding path program 1 times [2020-08-22 00:38:20,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:20,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132665630] [2020-08-22 00:38:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:21,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:21,642 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 00:38:21,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132665630] [2020-08-22 00:38:21,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:38:21,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 00:38:21,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525863389] [2020-08-22 00:38:21,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:21,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:21,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:21,670 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 00:38:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:23,702 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-22 00:38:23,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:23,711 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2020-08-22 00:38:23,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:23,732 INFO L225 Difference]: With dead ends: 698 [2020-08-22 00:38:23,732 INFO L226 Difference]: Without dead ends: 423 [2020-08-22 00:38:23,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:23,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-22 00:38:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-22 00:38:23,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-22 00:38:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-22 00:38:23,832 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 138 [2020-08-22 00:38:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:23,833 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-22 00:38:23,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-22 00:38:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-22 00:38:23,840 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:23,840 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:38:23,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 00:38:23,841 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:23,841 INFO L82 PathProgramCache]: Analyzing trace with hash -940546995, now seen corresponding path program 1 times [2020-08-22 00:38:23,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:23,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554412788] [2020-08-22 00:38:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:24,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554412788] [2020-08-22 00:38:24,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 00:38:24,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 00:38:24,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516666621] [2020-08-22 00:38:24,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:38:24,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:24,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:38:24,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:24,094 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-22 00:38:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:25,611 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-22 00:38:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 00:38:25,612 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2020-08-22 00:38:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:25,619 INFO L225 Difference]: With dead ends: 1130 [2020-08-22 00:38:25,619 INFO L226 Difference]: Without dead ends: 719 [2020-08-22 00:38:25,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-22 00:38:25,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-22 00:38:25,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-22 00:38:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-22 00:38:25,682 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 148 [2020-08-22 00:38:25,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:25,682 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-22 00:38:25,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:38:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-22 00:38:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-22 00:38:25,688 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:25,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 00:38:25,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 00:38:25,689 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:25,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:25,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2080872689, now seen corresponding path program 1 times [2020-08-22 00:38:25,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:25,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174051783] [2020-08-22 00:38:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:26,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:26,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:26,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174051783] [2020-08-22 00:38:26,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:26,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 00:38:26,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811292272] [2020-08-22 00:38:26,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 00:38:26,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:26,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 00:38:26,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:26,264 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 6 states. [2020-08-22 00:38:26,595 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-08-22 00:38:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:27,506 INFO L93 Difference]: Finished difference Result 1493 states and 2137 transitions. [2020-08-22 00:38:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:27,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-08-22 00:38:27,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:27,518 INFO L225 Difference]: With dead ends: 1493 [2020-08-22 00:38:27,518 INFO L226 Difference]: Without dead ends: 701 [2020-08-22 00:38:27,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 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 00:38:27,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-22 00:38:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-22 00:38:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-22 00:38:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 890 transitions. [2020-08-22 00:38:27,575 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 890 transitions. Word has length 149 [2020-08-22 00:38:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:27,575 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 890 transitions. [2020-08-22 00:38:27,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 00:38:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 890 transitions. [2020-08-22 00:38:27,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-08-22 00:38:27,579 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:27,580 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:38:27,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 00:38:27,580 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:27,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:27,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2059513865, now seen corresponding path program 1 times [2020-08-22 00:38:27,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:27,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946518906] [2020-08-22 00:38:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:27,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946518906] [2020-08-22 00:38:27,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:27,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:27,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375536348] [2020-08-22 00:38:27,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:27,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:27,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:27,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:27,964 INFO L87 Difference]: Start difference. First operand 695 states and 890 transitions. Second operand 7 states. [2020-08-22 00:38:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:29,078 INFO L93 Difference]: Finished difference Result 1472 states and 1929 transitions. [2020-08-22 00:38:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 00:38:29,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-08-22 00:38:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:29,084 INFO L225 Difference]: With dead ends: 1472 [2020-08-22 00:38:29,084 INFO L226 Difference]: Without dead ends: 701 [2020-08-22 00:38:29,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-22 00:38:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-22 00:38:29,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-22 00:38:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-22 00:38:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 885 transitions. [2020-08-22 00:38:29,123 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 885 transitions. Word has length 150 [2020-08-22 00:38:29,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:29,124 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 885 transitions. [2020-08-22 00:38:29,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:29,124 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 885 transitions. [2020-08-22 00:38:29,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 00:38:29,127 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:29,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:38:29,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 00:38:29,128 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash 938454151, now seen corresponding path program 1 times [2020-08-22 00:38:29,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:29,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102022292] [2020-08-22 00:38:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:29,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 00:38:29,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102022292] [2020-08-22 00:38:29,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:29,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 00:38:29,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686239175] [2020-08-22 00:38:29,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:29,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:29,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:29,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:29,306 INFO L87 Difference]: Start difference. First operand 695 states and 885 transitions. Second operand 5 states. [2020-08-22 00:38:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:30,246 INFO L93 Difference]: Finished difference Result 2075 states and 2722 transitions. [2020-08-22 00:38:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 00:38:30,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2020-08-22 00:38:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:30,255 INFO L225 Difference]: With dead ends: 2075 [2020-08-22 00:38:30,255 INFO L226 Difference]: Without dead ends: 1386 [2020-08-22 00:38:30,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 00:38:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2020-08-22 00:38:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1380. [2020-08-22 00:38:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-08-22 00:38:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 1750 transitions. [2020-08-22 00:38:30,314 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 1750 transitions. Word has length 153 [2020-08-22 00:38:30,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:30,315 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 1750 transitions. [2020-08-22 00:38:30,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:30,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 1750 transitions. [2020-08-22 00:38:30,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 00:38:30,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:30,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:38:30,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 00:38:30,322 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash -636501178, now seen corresponding path program 1 times [2020-08-22 00:38:30,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:30,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778909798] [2020-08-22 00:38:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:38:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 00:38:30,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778909798] [2020-08-22 00:38:30,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:30,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 00:38:30,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374726588] [2020-08-22 00:38:30,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 00:38:30,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:30,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 00:38:30,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 00:38:30,529 INFO L87 Difference]: Start difference. First operand 1380 states and 1750 transitions. Second operand 7 states. [2020-08-22 00:38:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:31,676 INFO L93 Difference]: Finished difference Result 3066 states and 3978 transitions. [2020-08-22 00:38:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 00:38:31,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-08-22 00:38:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:31,689 INFO L225 Difference]: With dead ends: 3066 [2020-08-22 00:38:31,689 INFO L226 Difference]: Without dead ends: 1692 [2020-08-22 00:38:31,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 00:38:31,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2020-08-22 00:38:31,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1406. [2020-08-22 00:38:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1406 states. [2020-08-22 00:38:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1766 transitions. [2020-08-22 00:38:31,752 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1766 transitions. Word has length 176 [2020-08-22 00:38:31,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:31,753 INFO L479 AbstractCegarLoop]: Abstraction has 1406 states and 1766 transitions. [2020-08-22 00:38:31,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 00:38:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1766 transitions. [2020-08-22 00:38:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-08-22 00:38:31,761 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:31,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:38:31,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 00:38:31,762 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:31,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:31,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2030746566, now seen corresponding path program 1 times [2020-08-22 00:38:31,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:31,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693909280] [2020-08-22 00:38:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:31,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:31,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:31,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:38:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 00:38:32,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693909280] [2020-08-22 00:38:32,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:32,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 00:38:32,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411298854] [2020-08-22 00:38:32,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 00:38:32,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:32,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 00:38:32,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 00:38:32,023 INFO L87 Difference]: Start difference. First operand 1406 states and 1766 transitions. Second operand 5 states. [2020-08-22 00:38:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:33,029 INFO L93 Difference]: Finished difference Result 3356 states and 4232 transitions. [2020-08-22 00:38:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 00:38:33,032 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-08-22 00:38:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:33,042 INFO L225 Difference]: With dead ends: 3356 [2020-08-22 00:38:33,043 INFO L226 Difference]: Without dead ends: 1956 [2020-08-22 00:38:33,047 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 00:38:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2020-08-22 00:38:33,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1956. [2020-08-22 00:38:33,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2020-08-22 00:38:33,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2367 transitions. [2020-08-22 00:38:33,106 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2367 transitions. Word has length 182 [2020-08-22 00:38:33,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:33,106 INFO L479 AbstractCegarLoop]: Abstraction has 1956 states and 2367 transitions. [2020-08-22 00:38:33,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 00:38:33,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2367 transitions. [2020-08-22 00:38:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-08-22 00:38:33,114 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:33,115 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-22 00:38:33,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 00:38:33,115 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:33,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:33,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1782107597, now seen corresponding path program 1 times [2020-08-22 00:38:33,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:33,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [200707742] [2020-08-22 00:38:33,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:38:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-22 00:38:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 00:38:33,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [200707742] [2020-08-22 00:38:33,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:33,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 00:38:33,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895040821] [2020-08-22 00:38:33,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:38:33,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:33,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:38:33,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:33,382 INFO L87 Difference]: Start difference. First operand 1956 states and 2367 transitions. Second operand 8 states. [2020-08-22 00:38:35,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:35,306 INFO L93 Difference]: Finished difference Result 4351 states and 5389 transitions. [2020-08-22 00:38:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 00:38:35,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2020-08-22 00:38:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:35,319 INFO L225 Difference]: With dead ends: 4351 [2020-08-22 00:38:35,319 INFO L226 Difference]: Without dead ends: 2536 [2020-08-22 00:38:35,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-22 00:38:35,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2020-08-22 00:38:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2522. [2020-08-22 00:38:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2522 states. [2020-08-22 00:38:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 3026 transitions. [2020-08-22 00:38:35,390 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 3026 transitions. Word has length 205 [2020-08-22 00:38:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:35,391 INFO L479 AbstractCegarLoop]: Abstraction has 2522 states and 3026 transitions. [2020-08-22 00:38:35,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:38:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 3026 transitions. [2020-08-22 00:38:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-08-22 00:38:35,400 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 00:38:35,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:38:35,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 00:38:35,401 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 00:38:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 00:38:35,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1906220709, now seen corresponding path program 1 times [2020-08-22 00:38:35,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 00:38:35,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076391570] [2020-08-22 00:38:35,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 00:38:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 00:38:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 00:38:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 00:38:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-08-22 00:38:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 00:38:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-08-22 00:38:35,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076391570] [2020-08-22 00:38:35,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 00:38:35,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 00:38:35,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706054590] [2020-08-22 00:38:35,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 00:38:35,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 00:38:35,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 00:38:35,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 00:38:35,791 INFO L87 Difference]: Start difference. First operand 2522 states and 3026 transitions. Second operand 8 states. [2020-08-22 00:38:38,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 00:38:38,238 INFO L93 Difference]: Finished difference Result 4903 states and 5902 transitions. [2020-08-22 00:38:38,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 00:38:38,239 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-08-22 00:38:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 00:38:38,240 INFO L225 Difference]: With dead ends: 4903 [2020-08-22 00:38:38,240 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 00:38:38,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-08-22 00:38:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 00:38:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 00:38:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 00:38:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 00:38:38,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2020-08-22 00:38:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 00:38:38,250 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 00:38:38,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 00:38:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 00:38:38,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 00:38:38,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 00:38:38,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 00:38:39,234 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 59 [2020-08-22 00:38:39,463 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-08-22 00:38:39,671 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 41 [2020-08-22 00:38:39,675 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 00:38:39,676 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 00:38:39,676 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 00:38:39,676 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 00:38:39,676 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 00:38:39,677 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,678 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 00:38:39,679 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 00:38:39,680 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 572) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,681 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 00:38:39,682 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,683 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 00:38:39,684 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 00:38:39,685 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 00:38:39,686 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,687 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 00:38:39,688 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 00:38:39,689 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,690 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 00:38:39,691 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 00:38:39,692 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 00:38:39,693 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse7 (= ~a20~0 |old(~a20~0)|)) (.cse8 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (not (= |old(~a20~0)| 1))) (.cse3 (= |old(~a8~0)| 13)) (.cse1 (and .cse5 .cse4 .cse6 .cse7 (= ~a16~0 |old(~a16~0)|) .cse8)) (.cse2 (not (= ~a12~0 8)))) (and (or .cse0 .cse1 (not (<= 6 |old(~a16~0)|)) .cse2) (or (not .cse3) (not (= |old(~a17~0)| 1)) (not (= |old(~a7~0)| 1)) .cse0 (and .cse4 .cse5 .cse6 .cse7 (= ~a8~0 13) (= 5 ~a16~0)) (not (= 5 |old(~a16~0)|)) .cse2) (or (and .cse5 .cse4 .cse6 .cse7 .cse8 (= ~a16~0 4)) .cse2 (not (= 4 |old(~a16~0)|))) (or .cse3 (not (<= |old(~a16~0)| 5)) .cse1 .cse2) (or (not (<= 15 |old(~a8~0)|)) .cse1 .cse2)))) [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,694 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 00:38:39,695 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,696 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 00:38:39,697 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,698 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 00:38:39,699 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 00:38:39,700 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-22 00:38:39,701 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 00:38:39,701 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 00:38:39,701 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a17~0 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= ~a12~0 8))) [2020-08-22 00:38:39,701 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 00:38:39,701 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) .cse0 (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (<= 6 ~a16~0) .cse0) (= ~a16~0 4) (not (= ~a12~0 8)) (<= 15 ~a8~0))) [2020-08-22 00:38:39,701 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 00:38:39,701 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 00:38:39,702 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 1) .cse0 (= 5 ~a16~0) (= ~a17~0 1)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (<= 6 ~a16~0) .cse0) (= ~a16~0 4) (not (= ~a12~0 8)) (<= 15 ~a8~0))) [2020-08-22 00:38:39,702 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 00:38:39,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 12:38:39 BoogieIcfgContainer [2020-08-22 00:38:39,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 00:38:39,726 INFO L168 Benchmark]: Toolchain (without parser) took 21134.49 ms. Allocated memory was 142.6 MB in the beginning and 511.7 MB in the end (delta: 369.1 MB). Free memory was 104.0 MB in the beginning and 365.9 MB in the end (delta: -261.9 MB). Peak memory consumption was 342.8 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:39,726 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 00:38:39,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 878.84 ms. Allocated memory was 142.6 MB in the beginning and 207.1 MB in the end (delta: 64.5 MB). Free memory was 103.8 MB in the beginning and 174.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:39,728 INFO L168 Benchmark]: Boogie Preprocessor took 125.41 ms. Allocated memory is still 207.1 MB. Free memory was 174.0 MB in the beginning and 168.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:39,729 INFO L168 Benchmark]: RCFGBuilder took 1238.52 ms. Allocated memory was 207.1 MB in the beginning and 233.8 MB in the end (delta: 26.7 MB). Free memory was 168.7 MB in the beginning and 171.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:39,730 INFO L168 Benchmark]: TraceAbstraction took 18883.58 ms. Allocated memory was 233.8 MB in the beginning and 511.7 MB in the end (delta: 277.9 MB). Free memory was 171.0 MB in the beginning and 365.9 MB in the end (delta: -194.9 MB). Peak memory consumption was 318.6 MB. Max. memory is 7.1 GB. [2020-08-22 00:38:39,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 878.84 ms. Allocated memory was 142.6 MB in the beginning and 207.1 MB in the end (delta: 64.5 MB). Free memory was 103.8 MB in the beginning and 174.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.41 ms. Allocated memory is still 207.1 MB. Free memory was 174.0 MB in the beginning and 168.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1238.52 ms. Allocated memory was 207.1 MB in the beginning and 233.8 MB in the end (delta: 26.7 MB). Free memory was 168.7 MB in the beginning and 171.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18883.58 ms. Allocated memory was 233.8 MB in the beginning and 511.7 MB in the end (delta: 277.9 MB). Free memory was 171.0 MB in the beginning and 365.9 MB in the end (delta: -194.9 MB). Peak memory consumption was 318.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 572]: 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: ((((((((!(\old(a17) == 1) || (a16 <= 5 && !(a8 == 13))) || !(\old(a16) <= 5)) || (((a7 == 1 && a20 == 1) && 5 == a16) && a17 == 1)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || (6 <= a16 && a20 == 1)) || a16 == 4) || !(a12 == 8)) || 15 <= a8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 3927 SDslu, 320 SDs, 0 SdLazy, 7705 SolverSat, 1040 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2522occurred in iteration=8, 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, 9 MinimizatonAttempts, 346 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 95 PreInvPairs, 135 NumberOfFragments, 389 HoareAnnotationTreeSize, 95 FomulaSimplifications, 40446 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3438 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1526 NumberOfCodeBlocks, 1526 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1517 ConstructedInterpolants, 0 QuantifiedInterpolants, 1300016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 346/378 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...