/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=1.0 --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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:15:49,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:15:49,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:15:49,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 02:15:49,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:15:49,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:15:49,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:15:49,790 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 02:15:49,830 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:15:49,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:15:49,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:15:49,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:15:49,832 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:15:49,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:15:49,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:15:49,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:15:49,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:15:49,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:15:49,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:15:49,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:15:49,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:15:49,835 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:15:49,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:15:49,835 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:15:49,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:15:49,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:15:49,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:15:49,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:15:49,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:15:49,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:15:49,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:15:49,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:15:49,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:15:49,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:15:49,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:15:49,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:15:49,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:15:49,838 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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-08-22 02:15:50,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:15:50,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:15:50,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:15:50,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:15:50,150 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:15:50,150 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 02:15:50,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/750be90c8/13760ad40bd741dea06dddc19aef9798/FLAGef83a6402 [2020-08-22 02:15:50,811 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:15:50,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 02:15:50,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/750be90c8/13760ad40bd741dea06dddc19aef9798/FLAGef83a6402 [2020-08-22 02:15:51,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/750be90c8/13760ad40bd741dea06dddc19aef9798 [2020-08-22 02:15:51,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:15:51,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:15:51,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:15:51,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:15:51,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:15:51,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51, skipping insertion in model container [2020-08-22 02:15:51,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:15:51,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:15:51,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:15:51,713 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:15:51,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:15:51,897 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:15:51,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51 WrapperNode [2020-08-22 02:15:51,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:15:51,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:15:51,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:15:51,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:15:51,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:51,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (1/1) ... [2020-08-22 02:15:52,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:15:52,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:15:52,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:15:52,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:15:52,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (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 02:15:52,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:15:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:15:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 02:15:52,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:15:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 02:15:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:15:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:15:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 02:15:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:15:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:15:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:15:53,272 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:15:53,272 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 02:15:53,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:15:53 BoogieIcfgContainer [2020-08-22 02:15:53,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:15:53,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:15:53,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:15:53,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:15:53,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:15:51" (1/3) ... [2020-08-22 02:15:53,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee105a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:15:53, skipping insertion in model container [2020-08-22 02:15:53,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:15:51" (2/3) ... [2020-08-22 02:15:53,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ee105a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:15:53, skipping insertion in model container [2020-08-22 02:15:53,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:15:53" (3/3) ... [2020-08-22 02:15:53,288 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-08-22 02:15:53,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:15:53,308 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:15:53,326 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:15:53,355 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:15:53,356 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:15:53,356 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:15:53,356 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:15:53,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:15:53,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:15:53,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:15:53,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:15:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 02:15:53,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-08-22 02:15:53,394 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:15:53,395 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] [2020-08-22 02:15:53,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:15:53,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:15:53,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1778503114, now seen corresponding path program 1 times [2020-08-22 02:15:53,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:15:53,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269100762] [2020-08-22 02:15:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:15:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:53,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:15:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:53,972 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 02:15:53,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269100762] [2020-08-22 02:15:53,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:15:53,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 02:15:53,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540583862] [2020-08-22 02:15:53,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:15:53,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:15:53,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:15:53,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:15:53,999 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 02:15:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:15:56,017 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-08-22 02:15:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:15:56,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2020-08-22 02:15:56,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:15:56,037 INFO L225 Difference]: With dead ends: 723 [2020-08-22 02:15:56,037 INFO L226 Difference]: Without dead ends: 423 [2020-08-22 02:15:56,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:15:56,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-22 02:15:56,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-22 02:15:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-22 02:15:56,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-08-22 02:15:56,173 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 122 [2020-08-22 02:15:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:15:56,174 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-08-22 02:15:56,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:15:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-08-22 02:15:56,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 02:15:56,180 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:15:56,181 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] [2020-08-22 02:15:56,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:15:56,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:15:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:15:56,182 INFO L82 PathProgramCache]: Analyzing trace with hash -259733235, now seen corresponding path program 1 times [2020-08-22 02:15:56,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:15:56,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312538832] [2020-08-22 02:15:56,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:15:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:15:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:56,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:15:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:56,371 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 02:15:56,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312538832] [2020-08-22 02:15:56,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:15:56,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 02:15:56,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335937044] [2020-08-22 02:15:56,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 02:15:56,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:15:56,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 02:15:56,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:15:56,376 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-08-22 02:15:57,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:15:57,677 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-08-22 02:15:57,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 02:15:57,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 132 [2020-08-22 02:15:57,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:15:57,686 INFO L225 Difference]: With dead ends: 1269 [2020-08-22 02:15:57,687 INFO L226 Difference]: Without dead ends: 858 [2020-08-22 02:15:57,689 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 02:15:57,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-08-22 02:15:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-08-22 02:15:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-08-22 02:15:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-08-22 02:15:57,750 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 132 [2020-08-22 02:15:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:15:57,750 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-08-22 02:15:57,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 02:15:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-08-22 02:15:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-22 02:15:57,754 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:15:57,755 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] [2020-08-22 02:15:57,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:15:57,755 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:15:57,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:15:57,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2082377679, now seen corresponding path program 1 times [2020-08-22 02:15:57,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:15:57,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506797988] [2020-08-22 02:15:57,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:15:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:15:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:58,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:15:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:58,130 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 02:15:58,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506797988] [2020-08-22 02:15:58,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:15:58,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 02:15:58,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549255289] [2020-08-22 02:15:58,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 02:15:58,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:15:58,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 02:15:58,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 02:15:58,133 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 6 states. [2020-08-22 02:15:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:15:59,313 INFO L93 Difference]: Finished difference Result 1769 states and 2519 transitions. [2020-08-22 02:15:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:15:59,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-08-22 02:15:59,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:15:59,319 INFO L225 Difference]: With dead ends: 1769 [2020-08-22 02:15:59,320 INFO L226 Difference]: Without dead ends: 840 [2020-08-22 02:15:59,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:15:59,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-08-22 02:15:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 832. [2020-08-22 02:15:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-08-22 02:15:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1059 transitions. [2020-08-22 02:15:59,357 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1059 transitions. Word has length 133 [2020-08-22 02:15:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:15:59,357 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1059 transitions. [2020-08-22 02:15:59,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 02:15:59,358 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1059 transitions. [2020-08-22 02:15:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-08-22 02:15:59,361 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:15:59,362 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] [2020-08-22 02:15:59,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:15:59,362 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:15:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:15:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash 394249543, now seen corresponding path program 1 times [2020-08-22 02:15:59,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:15:59,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829115740] [2020-08-22 02:15:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:15:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:59,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:15:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:59,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:15:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:15:59,571 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 02:15:59,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829115740] [2020-08-22 02:15:59,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:15:59,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 02:15:59,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068551354] [2020-08-22 02:15:59,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:15:59,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:15:59,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:15:59,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:15:59,574 INFO L87 Difference]: Start difference. First operand 832 states and 1059 transitions. Second operand 5 states. [2020-08-22 02:16:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:00,425 INFO L93 Difference]: Finished difference Result 2079 states and 2683 transitions. [2020-08-22 02:16:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 02:16:00,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-08-22 02:16:00,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:00,440 INFO L225 Difference]: With dead ends: 2079 [2020-08-22 02:16:00,440 INFO L226 Difference]: Without dead ends: 1253 [2020-08-22 02:16:00,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 02:16:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-08-22 02:16:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1243. [2020-08-22 02:16:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-08-22 02:16:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1550 transitions. [2020-08-22 02:16:00,512 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1550 transitions. Word has length 137 [2020-08-22 02:16:00,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:00,512 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1550 transitions. [2020-08-22 02:16:00,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:16:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1550 transitions. [2020-08-22 02:16:00,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-22 02:16:00,518 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:00,518 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 02:16:00,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:16:00,519 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 706222219, now seen corresponding path program 1 times [2020-08-22 02:16:00,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:00,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376914384] [2020-08-22 02:16:00,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:00,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:00,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:00,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 02:16:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:00,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 02:16:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-08-22 02:16:00,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376914384] [2020-08-22 02:16:00,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:00,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 02:16:00,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830525026] [2020-08-22 02:16:00,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:16:00,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:16:00,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:16:00,783 INFO L87 Difference]: Start difference. First operand 1243 states and 1550 transitions. Second operand 7 states. [2020-08-22 02:16:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:02,192 INFO L93 Difference]: Finished difference Result 3360 states and 4273 transitions. [2020-08-22 02:16:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:16:02,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-08-22 02:16:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:02,214 INFO L225 Difference]: With dead ends: 3360 [2020-08-22 02:16:02,215 INFO L226 Difference]: Without dead ends: 2123 [2020-08-22 02:16:02,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:16:02,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2020-08-22 02:16:02,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 1962. [2020-08-22 02:16:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-08-22 02:16:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2370 transitions. [2020-08-22 02:16:02,296 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2370 transitions. Word has length 181 [2020-08-22 02:16:02,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:02,297 INFO L479 AbstractCegarLoop]: Abstraction has 1962 states and 2370 transitions. [2020-08-22 02:16:02,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:16:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2370 transitions. [2020-08-22 02:16:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-22 02:16:02,304 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:02,305 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-22 02:16:02,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:16:02,306 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:02,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:02,306 INFO L82 PathProgramCache]: Analyzing trace with hash 853819156, now seen corresponding path program 1 times [2020-08-22 02:16:02,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:02,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152163696] [2020-08-22 02:16:02,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:16:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 02:16:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-22 02:16:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 75 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-22 02:16:02,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152163696] [2020-08-22 02:16:02,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:02,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 02:16:02,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475058899] [2020-08-22 02:16:02,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:16:02,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:02,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:16:02,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:16:02,546 INFO L87 Difference]: Start difference. First operand 1962 states and 2370 transitions. Second operand 7 states. [2020-08-22 02:16:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:03,908 INFO L93 Difference]: Finished difference Result 5487 states and 6885 transitions. [2020-08-22 02:16:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 02:16:03,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-08-22 02:16:03,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:03,927 INFO L225 Difference]: With dead ends: 5487 [2020-08-22 02:16:03,927 INFO L226 Difference]: Without dead ends: 3531 [2020-08-22 02:16:03,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:16:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2020-08-22 02:16:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3360. [2020-08-22 02:16:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3360 states. [2020-08-22 02:16:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4099 transitions. [2020-08-22 02:16:04,043 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4099 transitions. Word has length 196 [2020-08-22 02:16:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:04,043 INFO L479 AbstractCegarLoop]: Abstraction has 3360 states and 4099 transitions. [2020-08-22 02:16:04,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:16:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4099 transitions. [2020-08-22 02:16:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-08-22 02:16:04,055 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:04,056 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:16:04,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:16:04,056 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:04,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:04,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1458466897, now seen corresponding path program 1 times [2020-08-22 02:16:04,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:04,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106417462] [2020-08-22 02:16:04,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:04,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:04,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:16:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:04,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-22 02:16:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 80 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-22 02:16:04,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106417462] [2020-08-22 02:16:04,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:04,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 02:16:04,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116162006] [2020-08-22 02:16:04,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:16:04,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:04,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:16:04,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:16:04,275 INFO L87 Difference]: Start difference. First operand 3360 states and 4099 transitions. Second operand 7 states. [2020-08-22 02:16:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:05,563 INFO L93 Difference]: Finished difference Result 7002 states and 8519 transitions. [2020-08-22 02:16:05,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 02:16:05,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-08-22 02:16:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:05,583 INFO L225 Difference]: With dead ends: 7002 [2020-08-22 02:16:05,583 INFO L226 Difference]: Without dead ends: 3648 [2020-08-22 02:16:05,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:16:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2020-08-22 02:16:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3646. [2020-08-22 02:16:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3646 states. [2020-08-22 02:16:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 4303 transitions. [2020-08-22 02:16:05,686 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 4303 transitions. Word has length 195 [2020-08-22 02:16:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:05,687 INFO L479 AbstractCegarLoop]: Abstraction has 3646 states and 4303 transitions. [2020-08-22 02:16:05,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:16:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 4303 transitions. [2020-08-22 02:16:05,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-08-22 02:16:05,699 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:05,700 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 02:16:05,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 02:16:05,700 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:05,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:05,701 INFO L82 PathProgramCache]: Analyzing trace with hash 426210850, now seen corresponding path program 1 times [2020-08-22 02:16:05,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:05,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583167474] [2020-08-22 02:16:05,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 02:16:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 02:16:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-22 02:16:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 122 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-22 02:16:05,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583167474] [2020-08-22 02:16:05,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:05,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 02:16:05,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361610142] [2020-08-22 02:16:05,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:16:05,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:05,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:16:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:16:05,969 INFO L87 Difference]: Start difference. First operand 3646 states and 4303 transitions. Second operand 7 states. [2020-08-22 02:16:07,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:07,230 INFO L93 Difference]: Finished difference Result 7167 states and 8462 transitions. [2020-08-22 02:16:07,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 02:16:07,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-08-22 02:16:07,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:07,247 INFO L225 Difference]: With dead ends: 7167 [2020-08-22 02:16:07,247 INFO L226 Difference]: Without dead ends: 3662 [2020-08-22 02:16:07,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-22 02:16:07,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-08-22 02:16:07,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3656. [2020-08-22 02:16:07,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3656 states. [2020-08-22 02:16:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 4209 transitions. [2020-08-22 02:16:07,343 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 4209 transitions. Word has length 232 [2020-08-22 02:16:07,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:07,347 INFO L479 AbstractCegarLoop]: Abstraction has 3656 states and 4209 transitions. [2020-08-22 02:16:07,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:16:07,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 4209 transitions. [2020-08-22 02:16:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-22 02:16:07,359 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:07,359 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:07,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 02:16:07,360 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:07,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:07,360 INFO L82 PathProgramCache]: Analyzing trace with hash 604394622, now seen corresponding path program 1 times [2020-08-22 02:16:07,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:07,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444551538] [2020-08-22 02:16:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-22 02:16:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 02:16:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-22 02:16:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:07,687 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 39 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-08-22 02:16:07,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444551538] [2020-08-22 02:16:07,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:07,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 02:16:07,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107971113] [2020-08-22 02:16:07,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:16:07,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:07,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:16:07,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:16:07,694 INFO L87 Difference]: Start difference. First operand 3656 states and 4209 transitions. Second operand 9 states. [2020-08-22 02:16:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:11,536 INFO L93 Difference]: Finished difference Result 11217 states and 13877 transitions. [2020-08-22 02:16:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 02:16:11,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-22 02:16:11,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:11,572 INFO L225 Difference]: With dead ends: 11217 [2020-08-22 02:16:11,573 INFO L226 Difference]: Without dead ends: 7702 [2020-08-22 02:16:11,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-22 02:16:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2020-08-22 02:16:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7406. [2020-08-22 02:16:11,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7406 states. [2020-08-22 02:16:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 9126 transitions. [2020-08-22 02:16:11,797 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 9126 transitions. Word has length 246 [2020-08-22 02:16:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:11,798 INFO L479 AbstractCegarLoop]: Abstraction has 7406 states and 9126 transitions. [2020-08-22 02:16:11,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:16:11,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 9126 transitions. [2020-08-22 02:16:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-08-22 02:16:11,823 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:11,824 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:11,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 02:16:11,824 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:11,825 INFO L82 PathProgramCache]: Analyzing trace with hash -763457286, now seen corresponding path program 1 times [2020-08-22 02:16:11,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:11,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801182190] [2020-08-22 02:16:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:11,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:12,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:12,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:12,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 02:16:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:12,271 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 171 proven. 27 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-22 02:16:12,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801182190] [2020-08-22 02:16:12,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:12,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 02:16:12,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018871085] [2020-08-22 02:16:12,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 02:16:12,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:12,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 02:16:12,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 02:16:12,274 INFO L87 Difference]: Start difference. First operand 7406 states and 9126 transitions. Second operand 10 states. [2020-08-22 02:16:12,895 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-08-22 02:16:14,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:14,725 INFO L93 Difference]: Finished difference Result 14172 states and 17050 transitions. [2020-08-22 02:16:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 02:16:14,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 276 [2020-08-22 02:16:14,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:14,758 INFO L225 Difference]: With dead ends: 14172 [2020-08-22 02:16:14,758 INFO L226 Difference]: Without dead ends: 6907 [2020-08-22 02:16:14,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-08-22 02:16:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6907 states. [2020-08-22 02:16:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6907 to 6883. [2020-08-22 02:16:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6883 states. [2020-08-22 02:16:14,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 7945 transitions. [2020-08-22 02:16:14,921 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 7945 transitions. Word has length 276 [2020-08-22 02:16:14,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:14,922 INFO L479 AbstractCegarLoop]: Abstraction has 6883 states and 7945 transitions. [2020-08-22 02:16:14,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 02:16:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 7945 transitions. [2020-08-22 02:16:14,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-08-22 02:16:14,940 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:14,940 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:14,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 02:16:14,941 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:14,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2075847519, now seen corresponding path program 1 times [2020-08-22 02:16:14,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:14,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140123666] [2020-08-22 02:16:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 02:16:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 225 proven. 31 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-08-22 02:16:15,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140123666] [2020-08-22 02:16:15,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:15,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 02:16:15,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339013206] [2020-08-22 02:16:15,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 02:16:15,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:15,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 02:16:15,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:16:15,364 INFO L87 Difference]: Start difference. First operand 6883 states and 7945 transitions. Second operand 9 states. [2020-08-22 02:16:16,956 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-08-22 02:16:17,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:17,340 INFO L93 Difference]: Finished difference Result 13655 states and 15775 transitions. [2020-08-22 02:16:17,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 02:16:17,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 289 [2020-08-22 02:16:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:17,360 INFO L225 Difference]: With dead ends: 13655 [2020-08-22 02:16:17,360 INFO L226 Difference]: Without dead ends: 6913 [2020-08-22 02:16:17,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-22 02:16:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2020-08-22 02:16:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6885. [2020-08-22 02:16:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6885 states. [2020-08-22 02:16:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 7926 transitions. [2020-08-22 02:16:17,506 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 7926 transitions. Word has length 289 [2020-08-22 02:16:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:17,507 INFO L479 AbstractCegarLoop]: Abstraction has 6885 states and 7926 transitions. [2020-08-22 02:16:17,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 02:16:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 7926 transitions. [2020-08-22 02:16:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-08-22 02:16:17,526 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:17,526 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:17,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 02:16:17,527 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:17,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:17,527 INFO L82 PathProgramCache]: Analyzing trace with hash -394947665, now seen corresponding path program 1 times [2020-08-22 02:16:17,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:17,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631746500] [2020-08-22 02:16:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 02:16:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-22 02:16:17,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631746500] [2020-08-22 02:16:17,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:17,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 02:16:17,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638522111] [2020-08-22 02:16:17,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 02:16:17,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:17,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 02:16:17,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:16:17,891 INFO L87 Difference]: Start difference. First operand 6885 states and 7926 transitions. Second operand 8 states. [2020-08-22 02:16:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:18,926 INFO L93 Difference]: Finished difference Result 13538 states and 15450 transitions. [2020-08-22 02:16:18,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 02:16:18,927 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 308 [2020-08-22 02:16:18,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:18,942 INFO L225 Difference]: With dead ends: 13538 [2020-08-22 02:16:18,942 INFO L226 Difference]: Without dead ends: 6796 [2020-08-22 02:16:18,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 02:16:18,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6796 states. [2020-08-22 02:16:19,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6796 to 6053. [2020-08-22 02:16:19,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6053 states. [2020-08-22 02:16:19,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6053 states to 6053 states and 6739 transitions. [2020-08-22 02:16:19,071 INFO L78 Accepts]: Start accepts. Automaton has 6053 states and 6739 transitions. Word has length 308 [2020-08-22 02:16:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:19,072 INFO L479 AbstractCegarLoop]: Abstraction has 6053 states and 6739 transitions. [2020-08-22 02:16:19,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 02:16:19,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6053 states and 6739 transitions. [2020-08-22 02:16:19,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-08-22 02:16:19,094 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:19,095 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:19,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 02:16:19,095 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:19,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:19,095 INFO L82 PathProgramCache]: Analyzing trace with hash 874817583, now seen corresponding path program 1 times [2020-08-22 02:16:19,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:19,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570380837] [2020-08-22 02:16:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 02:16:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 198 proven. 5 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-08-22 02:16:19,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570380837] [2020-08-22 02:16:19,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:19,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 02:16:19,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759060351] [2020-08-22 02:16:19,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:16:19,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:19,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:16:19,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:16:19,494 INFO L87 Difference]: Start difference. First operand 6053 states and 6739 transitions. Second operand 5 states. [2020-08-22 02:16:20,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:20,325 INFO L93 Difference]: Finished difference Result 12515 states and 13928 transitions. [2020-08-22 02:16:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 02:16:20,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2020-08-22 02:16:20,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:20,340 INFO L225 Difference]: With dead ends: 12515 [2020-08-22 02:16:20,340 INFO L226 Difference]: Without dead ends: 5497 [2020-08-22 02:16:20,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 02:16:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2020-08-22 02:16:20,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5344. [2020-08-22 02:16:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2020-08-22 02:16:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5826 transitions. [2020-08-22 02:16:20,440 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5826 transitions. Word has length 313 [2020-08-22 02:16:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:20,441 INFO L479 AbstractCegarLoop]: Abstraction has 5344 states and 5826 transitions. [2020-08-22 02:16:20,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:16:20,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5826 transitions. [2020-08-22 02:16:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-08-22 02:16:20,456 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:20,456 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:20,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 02:16:20,456 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:20,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1264462194, now seen corresponding path program 1 times [2020-08-22 02:16:20,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:20,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804130840] [2020-08-22 02:16:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 02:16:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 02:16:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 184 proven. 21 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-08-22 02:16:20,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804130840] [2020-08-22 02:16:20,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:20,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 02:16:20,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539897763] [2020-08-22 02:16:20,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 02:16:20,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:20,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 02:16:20,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 02:16:20,810 INFO L87 Difference]: Start difference. First operand 5344 states and 5826 transitions. Second operand 6 states. [2020-08-22 02:16:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:21,995 INFO L93 Difference]: Finished difference Result 5904 states and 6477 transitions. [2020-08-22 02:16:21,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:16:21,996 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 318 [2020-08-22 02:16:21,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:22,008 INFO L225 Difference]: With dead ends: 5904 [2020-08-22 02:16:22,009 INFO L226 Difference]: Without dead ends: 5902 [2020-08-22 02:16:22,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:16:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2020-08-22 02:16:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5479. [2020-08-22 02:16:22,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-08-22 02:16:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 5996 transitions. [2020-08-22 02:16:22,097 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 5996 transitions. Word has length 318 [2020-08-22 02:16:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:22,098 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 5996 transitions. [2020-08-22 02:16:22,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 02:16:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 5996 transitions. [2020-08-22 02:16:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-08-22 02:16:22,114 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:22,114 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:22,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 02:16:22,115 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash 41074506, now seen corresponding path program 1 times [2020-08-22 02:16:22,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:22,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041575283] [2020-08-22 02:16:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 02:16:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-08-22 02:16:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 357 proven. 25 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-08-22 02:16:22,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041575283] [2020-08-22 02:16:22,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:22,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 02:16:22,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029066928] [2020-08-22 02:16:22,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 02:16:22,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:22,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 02:16:22,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:16:22,713 INFO L87 Difference]: Start difference. First operand 5479 states and 5996 transitions. Second operand 12 states. [2020-08-22 02:16:23,062 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-08-22 02:16:23,576 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-08-22 02:16:24,799 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-22 02:16:25,338 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-22 02:16:26,068 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-08-22 02:16:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:26,590 INFO L93 Difference]: Finished difference Result 10259 states and 11214 transitions. [2020-08-22 02:16:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 02:16:26,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 338 [2020-08-22 02:16:26,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:26,601 INFO L225 Difference]: With dead ends: 10259 [2020-08-22 02:16:26,601 INFO L226 Difference]: Without dead ends: 4923 [2020-08-22 02:16:26,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2020-08-22 02:16:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2020-08-22 02:16:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 4905. [2020-08-22 02:16:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4905 states. [2020-08-22 02:16:26,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4905 states to 4905 states and 5319 transitions. [2020-08-22 02:16:26,688 INFO L78 Accepts]: Start accepts. Automaton has 4905 states and 5319 transitions. Word has length 338 [2020-08-22 02:16:26,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:26,689 INFO L479 AbstractCegarLoop]: Abstraction has 4905 states and 5319 transitions. [2020-08-22 02:16:26,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 02:16:26,689 INFO L276 IsEmpty]: Start isEmpty. Operand 4905 states and 5319 transitions. [2020-08-22 02:16:26,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-08-22 02:16:26,701 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:16:26,702 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:16:26,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 02:16:26,702 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:16:26,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:16:26,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1269018866, now seen corresponding path program 1 times [2020-08-22 02:16:26,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:16:26,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424291327] [2020-08-22 02:16:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:16:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:26,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:16:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:26,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 02:16:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:16:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:26,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 02:16:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 02:16:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 02:16:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-08-22 02:16:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:16:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 224 proven. 24 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2020-08-22 02:16:27,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424291327] [2020-08-22 02:16:27,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 02:16:27,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 02:16:27,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979631628] [2020-08-22 02:16:27,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 02:16:27,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:16:27,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 02:16:27,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 02:16:27,164 INFO L87 Difference]: Start difference. First operand 4905 states and 5319 transitions. Second operand 7 states. [2020-08-22 02:16:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:16:28,321 INFO L93 Difference]: Finished difference Result 8974 states and 9763 transitions. [2020-08-22 02:16:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 02:16:28,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 358 [2020-08-22 02:16:28,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:16:28,325 INFO L225 Difference]: With dead ends: 8974 [2020-08-22 02:16:28,325 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 02:16:28,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:16:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 02:16:28,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 02:16:28,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 02:16:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 02:16:28,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-08-22 02:16:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:16:28,342 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 02:16:28,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 02:16:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 02:16:28,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 02:16:28,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 02:16:28,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 02:16:29,374 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-22 02:16:29,691 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 215 [2020-08-22 02:16:31,811 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2020-08-22 02:16:33,245 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-22 02:16:34,610 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 211 DAG size of output: 87 [2020-08-22 02:16:34,614 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:16:34,616 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 02:16:34,616 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:16:34,616 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 02:16:34,616 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 02:16:34,617 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 02:16:34,618 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 02:16:34,619 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 02:16:34,620 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 524) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 02:16:34,621 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,622 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 02:16:34,623 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 02:16:34,624 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 02:16:34,625 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,626 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 02:16:34,627 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,628 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 02:16:34,629 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,630 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 02:16:34,631 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 02:16:34,632 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 02:16:34,632 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 02:16:34,632 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 02:16:34,632 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= |old(~a20~0)| 1)) (.cse15 (= |old(~a7~0)| 1)) (.cse6 (= ~a16~0 |old(~a16~0)|)) (.cse28 (= ~a8~0 13)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a8~0 |old(~a8~0)|)) (.cse29 (= ~a16~0 4))) (let ((.cse18 (not (<= 14 |old(~a8~0)|))) (.cse22 (and .cse3 .cse2 .cse4 .cse5 .cse7 .cse29)) (.cse19 (not (<= |old(~a16~0)| 5))) (.cse23 (and .cse3 .cse2 .cse4 .cse5 .cse7 (= 5 ~a16~0))) (.cse24 (not (= 5 |old(~a16~0)|))) (.cse26 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse28)) (.cse8 (not (<= |old(~a17~0)| 0))) (.cse16 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse17 (not (<= 15 |old(~a8~0)|))) (.cse1 (not (<= 1 |old(~a21~0)|))) (.cse25 (not (= 6 |old(~a16~0)|))) (.cse20 (and .cse3 .cse2 .cse4 .cse5 .cse6 .cse7)) (.cse10 (not (<= |old(~a20~0)| 0))) (.cse12 (not (= |old(~a8~0)| 13))) (.cse27 (not .cse15)) (.cse14 (and .cse3 .cse2 .cse4 .cse5 .cse28 .cse29)) (.cse21 (not .cse13)) (.cse9 (not (= ~a12~0 8))) (.cse11 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10 .cse11) (or .cse12 .cse13 .cse1 .cse14 .cse9 .cse11 .cse15) (or (and .cse3 .cse4 .cse5 .cse6 .cse7 (= ~a17~0 1)) .cse16 .cse13 .cse17 .cse1 .cse9 .cse11 .cse15) (or .cse18 .cse19 .cse1 .cse20 .cse8 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse1 .cse21 .cse22 .cse9 .cse11) (or .cse18 .cse1 .cse23 .cse8 .cse24 .cse9) (or .cse17 .cse1 .cse25 .cse21 .cse20 .cse8 .cse9 .cse15) (or .cse0 .cse17 .cse1 .cse25 .cse8 .cse20 .cse9 .cse10) (or .cse12 .cse16 .cse26 .cse19 .cse27 .cse21 .cse9) (or .cse12 .cse16 .cse0 .cse26 .cse1 .cse25 .cse21 .cse9) (or .cse12 .cse0 .cse1 .cse14 .cse21 .cse9 .cse11) (or .cse16 .cse13 .cse17 .cse1 .cse23 .cse24 .cse9 .cse15) (or .cse0 .cse1 .cse21 .cse8 .cse22 .cse9 .cse11) (or .cse12 .cse16 .cse26 .cse19 .cse9 .cse10) (or .cse16 .cse0 .cse19 .cse17 .cse1 .cse23 .cse21 .cse24 .cse9) (or .cse12 .cse26 .cse27 .cse25 .cse21 .cse8 .cse9) (or .cse16 .cse0 .cse17 .cse1 .cse25 .cse20 .cse9 .cse10) (or .cse12 .cse27 .cse14 .cse21 (= |old(~a21~0)| 1) .cse9 .cse11 (not (= 0 |old(~a17~0)|)))))) [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 02:16:34,633 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,634 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 02:16:34,635 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,636 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 02:16:34,637 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 02:16:34,638 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 02:16:34,639 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 02:16:34,642 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 02:16:34,643 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 02:16:34,643 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 02:16:34,643 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 02:16:34,643 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 02:16:34,643 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (<= ~a7~0 0) (= ~a20~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-22 02:16:34,643 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 02:16:34,643 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 02:16:34,644 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (<= 1 |old(~a21~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= ~a12~0 8))) [2020-08-22 02:16:34,644 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 02:16:34,644 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-22 02:16:34,644 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 02:16:34,644 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 02:16:34,645 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a20~0 1)) (.cse12 (= ~a7~0 1))) (let ((.cse11 (= 5 ~a16~0)) (.cse6 (= ~a12~0 8)) (.cse0 (= ~a16~0 6)) (.cse7 (<= ~a7~0 0)) (.cse5 (<= 15 ~a8~0)) (.cse14 (<= 14 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse13 (<= ~a16~0 5)) (.cse10 (= ~a17~0 1)) (.cse16 (<= ~a20~0 0)) (.cse8 (= ~a8~0 13)) (.cse9 (= ~a16~0 4)) (.cse4 (<= 1 ~a21~0)) (.cse3 (not .cse12)) (.cse15 (not .cse2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse8 .cse2 .cse9 .cse4) (and .cse6 .cse7 .cse2 .cse9 .cse4 .cse10) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a8~0 |old(~a8~0)|) .cse11) (and .cse6 .cse1 .cse7 .cse2 .cse9 .cse4) (and .cse12 .cse13 .cse8 .cse2 .cse10) (and .cse14 .cse1 .cse4 .cse11) (and .cse3 .cse4 .cse11 .cse15 .cse5 .cse10) (and .cse12 .cse0 .cse1 .cse8 .cse2) (not (<= 1 |old(~a21~0)|)) (and .cse12 (= ~a20~0 |old(~a20~0)|) (not (= ~a21~0 1)) .cse8 .cse9 (= ~a17~0 0)) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse7 .cse4 .cse10 .cse16 .cse5) (and .cse6 .cse1 .cse7 .cse9 .cse4 .cse16) (not .cse6) (not (<= |old(~a7~0)| 0)) (and .cse9 .cse3 .cse4 .cse15 .cse10 .cse5) (not (= |old(~a17~0)| 1)) (and .cse0 .cse8 .cse7 .cse2 .cse4 .cse10) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse1 .cse7 .cse4 .cse16 .cse5) (and .cse14 .cse13 .cse1 .cse4 .cse16) (and .cse13 .cse8 .cse10 .cse16) (and .cse8 .cse9 .cse4 .cse3 .cse15)))) [2020-08-22 02:16:34,645 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 02:16:34,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 02:16:34 BoogieIcfgContainer [2020-08-22 02:16:34,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 02:16:34,703 INFO L168 Benchmark]: Toolchain (without parser) took 43613.56 ms. Allocated memory was 138.9 MB in the beginning and 884.5 MB in the end (delta: 745.5 MB). Free memory was 100.0 MB in the beginning and 488.0 MB in the end (delta: -388.0 MB). Peak memory consumption was 727.1 MB. Max. memory is 7.1 GB. [2020-08-22 02:16:34,703 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 02:16:34,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.58 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-08-22 02:16:34,704 INFO L168 Benchmark]: Boogie Preprocessor took 105.87 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-08-22 02:16:34,705 INFO L168 Benchmark]: RCFGBuilder took 1274.03 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 179.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-08-22 02:16:34,712 INFO L168 Benchmark]: TraceAbstraction took 41420.69 ms. Allocated memory was 235.9 MB in the beginning and 884.5 MB in the end (delta: 648.5 MB). Free memory was 178.1 MB in the beginning and 488.0 MB in the end (delta: -309.9 MB). Peak memory consumption was 708.2 MB. Max. memory is 7.1 GB. [2020-08-22 02:16:34,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.58 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 169.9 MB in the end (delta: -70.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.87 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 164.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.03 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 179.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41420.69 ms. Allocated memory was 235.9 MB in the beginning and 884.5 MB in the end (delta: 648.5 MB). Free memory was 178.1 MB in the beginning and 488.0 MB in the end (delta: -309.9 MB). Peak memory consumption was 708.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 524]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a16 == 6 && a17 <= 0) && a20 == 1) && !(a7 == 1)) && 1 <= a21) && 15 <= a8) || (((((a12 == 8 && a7 <= 0) && a8 == 13) && a20 == 1) && a16 == 4) && 1 <= a21)) || (((((a12 == 8 && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21) && a17 == 1)) || !(\old(a20) == 1)) || ((((a7 == \old(a7) && a17 == \old(a17)) && a21 == \old(a21)) && a8 == \old(a8)) && 5 == a16)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a20 == 1) && a16 == 4) && 1 <= a21)) || ((((a7 == 1 && a16 <= 5) && a8 == 13) && a20 == 1) && a17 == 1)) || (((14 <= a8 && a17 <= 0) && 1 <= a21) && 5 == a16)) || (((((!(a7 == 1) && 1 <= a21) && 5 == a16) && !(a20 == 1)) && 15 <= a8) && a17 == 1)) || ((((a7 == 1 && a16 == 6) && a17 <= 0) && a8 == 13) && a20 == 1)) || !(1 <= \old(a21))) || (((((a7 == 1 && a20 == \old(a20)) && !(a21 == 1)) && a8 == 13) && a16 == 4) && a17 == 0)) || !(5 == \old(a16))) || (((((a16 == 6 && a7 <= 0) && 1 <= a21) && a17 == 1) && a20 <= 0) && 15 <= a8)) || (((((a12 == 8 && a17 <= 0) && a7 <= 0) && a16 == 4) && 1 <= a21) && a20 <= 0)) || !(a12 == 8)) || !(\old(a7) <= 0)) || (((((a16 == 4 && !(a7 == 1)) && 1 <= a21) && !(a20 == 1)) && a17 == 1) && 15 <= a8)) || !(\old(a17) == 1)) || (((((a16 == 6 && a8 == 13) && a7 <= 0) && a20 == 1) && 1 <= a21) && a17 == 1)) || !(15 <= \old(a8))) || (((((a16 == 6 && a17 <= 0) && a7 <= 0) && 1 <= a21) && a20 <= 0) && 15 <= a8)) || ((((14 <= a8 && a16 <= 5) && a17 <= 0) && 1 <= a21) && a20 <= 0)) || (((a16 <= 5 && a8 == 13) && a17 == 1) && a20 <= 0)) || ((((a8 == 13 && a16 == 4) && 1 <= a21) && !(a7 == 1)) && !(a20 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.9s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 27.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 487 SDtfs, 10981 SDslu, 677 SDs, 0 SdLazy, 15843 SolverSat, 2374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 410 GetRequests, 228 SyntacticMatches, 4 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7406occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 2073 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 450 PreInvPairs, 528 NumberOfFragments, 1650 HoareAnnotationTreeSize, 450 FomulaSimplifications, 157403 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 33192 FormulaSimplificationTreeSizeReductionInter, 4.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 3774 NumberOfCodeBlocks, 3774 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3758 ConstructedInterpolants, 0 QuantifiedInterpolants, 2788865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 3698/3974 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...