/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 12:58:39,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:58:39,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:58:39,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-18 12:58:39,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:58:39,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:58:39,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:58:39,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:58:39,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:58:39,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:58:39,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:58:39,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:58:39,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:58:39,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:58:39,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:58:39,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:58:39,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 12:58:39,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:58:39,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:58:39,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:58:39,606 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 [2020-08-18 12:58:39,629 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:58:39,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:58:39,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:58:39,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:58:39,631 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:58:39,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:58:39,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 12:58:39,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:58:39,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 12:58:39,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:58:39,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:58:39,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:58:39,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:58:39,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 12:58:39,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:58:39,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:58:39,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:58:39,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:58:39,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:58:39,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:58:39,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:58:39,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:58:39,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:58:39,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:58:39,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:58:39,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:58:39,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:58:39,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:58:39,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:58:39,636 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=5;interpolation-heuristic=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 12:58:39,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:58:39,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:58:39,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:58:39,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:58:39,978 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:58:39,979 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-18 12:58:40,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9e1a8bf6/51fa2f6a6ecc408c9ac77c4ddf74c1b8/FLAG0849028e0 [2020-08-18 12:58:40,677 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:58:40,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-08-18 12:58:40,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9e1a8bf6/51fa2f6a6ecc408c9ac77c4ddf74c1b8/FLAG0849028e0 [2020-08-18 12:58:40,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9e1a8bf6/51fa2f6a6ecc408c9ac77c4ddf74c1b8 [2020-08-18 12:58:40,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:58:40,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:58:40,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:58:40,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:58:40,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:58:40,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:58:40" (1/1) ... [2020-08-18 12:58:40,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e37eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:40, skipping insertion in model container [2020-08-18 12:58:40,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:58:40" (1/1) ... [2020-08-18 12:58:40,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:58:40,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:58:41,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:58:41,446 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:58:41,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:58:41,666 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:58:41,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41 WrapperNode [2020-08-18 12:58:41,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:58:41,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:58:41,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:58:41,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:58:41,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (1/1) ... [2020-08-18 12:58:41,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:58:41,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:58:41,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:58:41,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:58:41,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (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 [2020-08-18 12:58:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:58:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:58:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-18 12:58:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:58:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-18 12:58:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:58:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 12:58:41,883 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 12:58:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:58:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:58:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:58:43,089 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:58:43,089 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 12:58:43,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:58:43 BoogieIcfgContainer [2020-08-18 12:58:43,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:58:43,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:58:43,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:58:43,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:58:43,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:58:40" (1/3) ... [2020-08-18 12:58:43,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:58:43, skipping insertion in model container [2020-08-18 12:58:43,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:58:41" (2/3) ... [2020-08-18 12:58:43,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4f33e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:58:43, skipping insertion in model container [2020-08-18 12:58:43,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:58:43" (3/3) ... [2020-08-18 12:58:43,105 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-08-18 12:58:43,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:58:43,125 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:58:43,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:58:43,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:58:43,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:58:43,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:58:43,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:58:43,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:58:43,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:58:43,169 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:58:43,169 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:58:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-18 12:58:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-08-18 12:58:43,207 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:43,209 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] [2020-08-18 12:58:43,209 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:43,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1377016033, now seen corresponding path program 1 times [2020-08-18 12:58:43,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:43,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041557878] [2020-08-18 12:58:43,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:43,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:58:43,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041557878] [2020-08-18 12:58:43,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:58:43,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 12:58:43,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776286893] [2020-08-18 12:58:43,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:58:43,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:43,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:58:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:58:43,929 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-18 12:58:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:46,038 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-18 12:58:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 12:58:46,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-08-18 12:58:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:46,070 INFO L225 Difference]: With dead ends: 698 [2020-08-18 12:58:46,071 INFO L226 Difference]: Without dead ends: 423 [2020-08-18 12:58:46,081 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 [2020-08-18 12:58:46,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-18 12:58:46,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-18 12:58:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-18 12:58:46,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 603 transitions. [2020-08-18 12:58:46,167 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 603 transitions. Word has length 115 [2020-08-18 12:58:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:46,169 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 603 transitions. [2020-08-18 12:58:46,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:58:46,169 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 603 transitions. [2020-08-18 12:58:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-18 12:58:46,175 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:46,175 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:58:46,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:58:46,176 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:46,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:46,176 INFO L82 PathProgramCache]: Analyzing trace with hash 508544498, now seen corresponding path program 1 times [2020-08-18 12:58:46,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:46,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879644820] [2020-08-18 12:58:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:46,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:46,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:58:46,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879644820] [2020-08-18 12:58:46,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:46,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 12:58:46,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744089077] [2020-08-18 12:58:46,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 12:58:46,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:46,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 12:58:46,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 12:58:46,446 INFO L87 Difference]: Start difference. First operand 417 states and 603 transitions. Second operand 6 states. [2020-08-18 12:58:48,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:48,098 INFO L93 Difference]: Finished difference Result 1519 states and 2242 transitions. [2020-08-18 12:58:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 12:58:48,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-08-18 12:58:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:48,111 INFO L225 Difference]: With dead ends: 1519 [2020-08-18 12:58:48,111 INFO L226 Difference]: Without dead ends: 1108 [2020-08-18 12:58:48,114 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 [2020-08-18 12:58:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-08-18 12:58:48,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 695. [2020-08-18 12:58:48,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-18 12:58:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 992 transitions. [2020-08-18 12:58:48,184 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 992 transitions. Word has length 132 [2020-08-18 12:58:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:48,185 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 992 transitions. [2020-08-18 12:58:48,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 12:58:48,186 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 992 transitions. [2020-08-18 12:58:48,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-18 12:58:48,196 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:48,199 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:58:48,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:58:48,200 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:48,200 INFO L82 PathProgramCache]: Analyzing trace with hash -469327528, now seen corresponding path program 1 times [2020-08-18 12:58:48,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:48,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921755057] [2020-08-18 12:58:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:48,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:48,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:58:48,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921755057] [2020-08-18 12:58:48,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:48,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-18 12:58:48,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037804366] [2020-08-18 12:58:48,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 12:58:48,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:48,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 12:58:48,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:58:48,547 INFO L87 Difference]: Start difference. First operand 695 states and 992 transitions. Second operand 5 states. [2020-08-18 12:58:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:49,684 INFO L93 Difference]: Finished difference Result 2077 states and 3027 transitions. [2020-08-18 12:58:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 12:58:49,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-08-18 12:58:49,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:49,693 INFO L225 Difference]: With dead ends: 2077 [2020-08-18 12:58:49,694 INFO L226 Difference]: Without dead ends: 1388 [2020-08-18 12:58:49,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-18 12:58:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-08-18 12:58:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1106. [2020-08-18 12:58:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-08-18 12:58:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1479 transitions. [2020-08-18 12:58:49,750 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1479 transitions. Word has length 149 [2020-08-18 12:58:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:49,751 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1479 transitions. [2020-08-18 12:58:49,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 12:58:49,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1479 transitions. [2020-08-18 12:58:49,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-18 12:58:49,759 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:49,759 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-18 12:58:49,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 12:58:49,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:49,760 INFO L82 PathProgramCache]: Analyzing trace with hash -425921661, now seen corresponding path program 1 times [2020-08-18 12:58:49,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:49,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285200876] [2020-08-18 12:58:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:49,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:49,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 12:58:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 12:58:49,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285200876] [2020-08-18 12:58:49,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:49,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:58:49,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561309654] [2020-08-18 12:58:49,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:58:49,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:49,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:58:49,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:58:49,956 INFO L87 Difference]: Start difference. First operand 1106 states and 1479 transitions. Second operand 7 states. [2020-08-18 12:58:51,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:51,475 INFO L93 Difference]: Finished difference Result 2520 states and 3457 transitions. [2020-08-18 12:58:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 12:58:51,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-08-18 12:58:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:51,489 INFO L225 Difference]: With dead ends: 2520 [2020-08-18 12:58:51,489 INFO L226 Difference]: Without dead ends: 1420 [2020-08-18 12:58:51,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-08-18 12:58:51,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1420 states. [2020-08-18 12:58:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1420 to 1116. [2020-08-18 12:58:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-08-18 12:58:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1466 transitions. [2020-08-18 12:58:51,569 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1466 transitions. Word has length 171 [2020-08-18 12:58:51,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:51,569 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1466 transitions. [2020-08-18 12:58:51,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:58:51,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1466 transitions. [2020-08-18 12:58:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-08-18 12:58:51,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:51,577 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 12:58:51,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 12:58:51,578 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:51,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:51,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1098584007, now seen corresponding path program 1 times [2020-08-18 12:58:51,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:51,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580405228] [2020-08-18 12:58:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 12:58:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-08-18 12:58:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-08-18 12:58:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-18 12:58:51,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580405228] [2020-08-18 12:58:51,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:51,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:58:51,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365523092] [2020-08-18 12:58:51,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:58:51,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:51,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:58:51,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:58:51,881 INFO L87 Difference]: Start difference. First operand 1116 states and 1466 transitions. Second operand 7 states. [2020-08-18 12:58:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:53,553 INFO L93 Difference]: Finished difference Result 2971 states and 3993 transitions. [2020-08-18 12:58:53,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 12:58:53,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-08-18 12:58:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:53,570 INFO L225 Difference]: With dead ends: 2971 [2020-08-18 12:58:53,571 INFO L226 Difference]: Without dead ends: 1861 [2020-08-18 12:58:53,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:58:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2020-08-18 12:58:53,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1561. [2020-08-18 12:58:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2020-08-18 12:58:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1997 transitions. [2020-08-18 12:58:53,660 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1997 transitions. Word has length 215 [2020-08-18 12:58:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:53,661 INFO L479 AbstractCegarLoop]: Abstraction has 1561 states and 1997 transitions. [2020-08-18 12:58:53,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:58:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1997 transitions. [2020-08-18 12:58:53,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-08-18 12:58:53,670 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:53,670 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-08-18 12:58:53,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 12:58:53,671 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:53,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:53,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1678805504, now seen corresponding path program 1 times [2020-08-18 12:58:53,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:53,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357074489] [2020-08-18 12:58:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 12:58:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 12:58:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-18 12:58:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-18 12:58:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 125 proven. 60 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-08-18 12:58:53,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357074489] [2020-08-18 12:58:53,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:53,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:58:53,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417850579] [2020-08-18 12:58:53,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:58:53,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:53,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:58:53,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:58:53,938 INFO L87 Difference]: Start difference. First operand 1561 states and 1997 transitions. Second operand 7 states. [2020-08-18 12:58:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:55,285 INFO L93 Difference]: Finished difference Result 4288 states and 5737 transitions. [2020-08-18 12:58:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 12:58:55,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-08-18 12:58:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:55,301 INFO L225 Difference]: With dead ends: 4288 [2020-08-18 12:58:55,301 INFO L226 Difference]: Without dead ends: 2733 [2020-08-18 12:58:55,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:58:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2020-08-18 12:58:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2562. [2020-08-18 12:58:55,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2562 states. [2020-08-18 12:58:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2562 states to 2562 states and 3291 transitions. [2020-08-18 12:58:55,391 INFO L78 Accepts]: Start accepts. Automaton has 2562 states and 3291 transitions. Word has length 238 [2020-08-18 12:58:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:55,391 INFO L479 AbstractCegarLoop]: Abstraction has 2562 states and 3291 transitions. [2020-08-18 12:58:55,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:58:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2562 states and 3291 transitions. [2020-08-18 12:58:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-18 12:58:55,401 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:55,401 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-08-18 12:58:55,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 12:58:55,402 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash 322431195, now seen corresponding path program 1 times [2020-08-18 12:58:55,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:55,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134161302] [2020-08-18 12:58:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:58:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 12:58:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-08-18 12:58:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 130 proven. 26 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-08-18 12:58:55,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134161302] [2020-08-18 12:58:55,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:55,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:58:55,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837316139] [2020-08-18 12:58:55,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:58:55,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:55,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:58:55,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:58:55,657 INFO L87 Difference]: Start difference. First operand 2562 states and 3291 transitions. Second operand 7 states. [2020-08-18 12:58:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:57,189 INFO L93 Difference]: Finished difference Result 6093 states and 7898 transitions. [2020-08-18 12:58:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 12:58:57,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-08-18 12:58:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:57,215 INFO L225 Difference]: With dead ends: 6093 [2020-08-18 12:58:57,216 INFO L226 Difference]: Without dead ends: 3537 [2020-08-18 12:58:57,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:58:57,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2020-08-18 12:58:57,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3531. [2020-08-18 12:58:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3531 states. [2020-08-18 12:58:57,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 4406 transitions. [2020-08-18 12:58:57,371 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 4406 transitions. Word has length 237 [2020-08-18 12:58:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:57,373 INFO L479 AbstractCegarLoop]: Abstraction has 3531 states and 4406 transitions. [2020-08-18 12:58:57,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:58:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 4406 transitions. [2020-08-18 12:58:57,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-18 12:58:57,386 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:57,387 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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] [2020-08-18 12:58:57,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 12:58:57,387 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:57,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:57,388 INFO L82 PathProgramCache]: Analyzing trace with hash 255004558, now seen corresponding path program 1 times [2020-08-18 12:58:57,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:57,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605386108] [2020-08-18 12:58:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-18 12:58:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-18 12:58:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-08-18 12:58:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-18 12:58:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 172 proven. 82 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-08-18 12:58:57,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605386108] [2020-08-18 12:58:57,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:57,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 12:58:57,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501047758] [2020-08-18 12:58:57,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 12:58:57,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:57,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 12:58:57,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-18 12:58:57,731 INFO L87 Difference]: Start difference. First operand 3531 states and 4406 transitions. Second operand 7 states. [2020-08-18 12:58:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:58:59,269 INFO L93 Difference]: Finished difference Result 7481 states and 9433 transitions. [2020-08-18 12:58:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 12:58:59,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-08-18 12:58:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:58:59,290 INFO L225 Difference]: With dead ends: 7481 [2020-08-18 12:58:59,290 INFO L226 Difference]: Without dead ends: 3956 [2020-08-18 12:58:59,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 12:58:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2020-08-18 12:58:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3950. [2020-08-18 12:58:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2020-08-18 12:58:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4873 transitions. [2020-08-18 12:58:59,424 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4873 transitions. Word has length 274 [2020-08-18 12:58:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:58:59,425 INFO L479 AbstractCegarLoop]: Abstraction has 3950 states and 4873 transitions. [2020-08-18 12:58:59,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 12:58:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4873 transitions. [2020-08-18 12:58:59,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-08-18 12:58:59,440 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:58:59,440 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-18 12:58:59,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 12:58:59,441 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:58:59,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:58:59,441 INFO L82 PathProgramCache]: Analyzing trace with hash 367016682, now seen corresponding path program 1 times [2020-08-18 12:58:59,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:58:59,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231578380] [2020-08-18 12:58:59,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:58:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:58:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-18 12:58:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-08-18 12:58:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 12:58:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-18 12:58:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-18 12:58:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:58:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 197 proven. 85 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-08-18 12:58:59,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231578380] [2020-08-18 12:58:59,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 12:58:59,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 12:58:59,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620626846] [2020-08-18 12:58:59,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 12:58:59,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:58:59,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 12:58:59,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 12:58:59,787 INFO L87 Difference]: Start difference. First operand 3950 states and 4873 transitions. Second operand 9 states. [2020-08-18 12:59:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:59:04,219 INFO L93 Difference]: Finished difference Result 10546 states and 13498 transitions. [2020-08-18 12:59:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-18 12:59:04,220 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 288 [2020-08-18 12:59:04,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:59:04,220 INFO L225 Difference]: With dead ends: 10546 [2020-08-18 12:59:04,220 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 12:59:04,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-08-18 12:59:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 12:59:04,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 12:59:04,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 12:59:04,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 12:59:04,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 288 [2020-08-18 12:59:04,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:59:04,246 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 12:59:04,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 12:59:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 12:59:04,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 12:59:04,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 12:59:04,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 12:59:05,814 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-18 12:59:06,024 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 122 [2020-08-18 12:59:06,950 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 61 [2020-08-18 12:59:07,245 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-18 12:59:07,486 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 47 [2020-08-18 12:59:07,491 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 12:59:07,491 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)|)) [2020-08-18 12:59:07,491 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 12:59:07,492 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-18 12:59:07,493 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-18 12:59:07,493 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,493 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-18 12:59:07,494 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-18 12:59:07,495 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-18 12:59:07,496 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-18 12:59:07,497 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,498 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-18 12:59:07,499 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,500 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-18 12:59:07,501 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-18 12:59:07,502 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-18 12:59:07,503 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,504 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-18 12:59:07,505 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-18 12:59:07,506 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,507 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-18 12:59:07,508 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-18 12:59:07,509 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-18 12:59:07,510 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse3 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse8 (= ~a21~0 1)) (.cse5 (= 5 ~a16~0)) (.cse6 (not (= 5 |old(~a16~0)|))) (.cse13 (= ~a17~0 1)) (.cse12 (not (= |old(~a17~0)| 1))) (.cse9 (not (<= |old(~a7~0)| 0))) (.cse10 (not (= |old(~a20~0)| 1))) (.cse14 (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4)) (.cse7 (not (= |old(~a21~0)| 1)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7) (or (and .cse1 .cse0 .cse8 .cse3 .cse4 (= ~a16~0 4)) .cse9 .cse10 .cse7 (not (= 4 |old(~a16~0)|))) (or .cse9 (not (= 6 |old(~a16~0)|)) .cse10 (and .cse1 .cse0 .cse8 .cse3 .cse11 .cse4) .cse7) (or .cse12 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse13) .cse6) (or .cse14 (= 14 |old(~a8~0)|)) (or (and .cse1 .cse2 .cse3 .cse11 .cse4 .cse13) .cse12 .cse9 .cse10 .cse7) (or .cse14 .cse7 (not (<= |old(~a20~0)| 0)))))) [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,511 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-18 12:59:07,512 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,513 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-18 12:59:07,514 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-18 12:59:07,515 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-18 12:59:07,516 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-18 12:59:07,517 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-18 12:59:07,518 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-18 12:59:07,518 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-18 12:59:07,518 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 12:59:07,518 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a7~0 0) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-08-18 12:59:07,518 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 12:59:07,518 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 12:59:07,518 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 |old(~a8~0)|) (= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1))) [2020-08-18 12:59:07,519 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-18 12:59:07,519 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-18 12:59:07,519 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-18 12:59:07,519 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-18 12:59:07,519 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (= 5 ~a16~0)) (.cse0 (= ~a21~0 1)) (.cse2 (<= ~a7~0 0)) (.cse3 (= ~a20~0 1))) (or (and .cse0 .cse1) (not (= |old(~a17~0)| 1)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= 14 ~a8~0)) (and .cse1 (= ~a17~0 1)) (and .cse0 (= ~a16~0 6) .cse2 .cse3) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse2 .cse3 (= ~a16~0 4)) (not (= |old(~a21~0)| 1)))) [2020-08-18 12:59:07,520 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-18 12:59:07,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 12:59:07 BoogieIcfgContainer [2020-08-18 12:59:07,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 12:59:07,546 INFO L168 Benchmark]: Toolchain (without parser) took 26637.34 ms. Allocated memory was 136.8 MB in the beginning and 626.0 MB in the end (delta: 489.2 MB). Free memory was 98.3 MB in the beginning and 158.3 MB in the end (delta: -60.0 MB). Peak memory consumption was 516.3 MB. Max. memory is 7.1 GB. [2020-08-18 12:59:07,548 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 12:59:07,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.61 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 167.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-08-18 12:59:07,550 INFO L168 Benchmark]: Boogie Preprocessor took 130.90 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 163.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-08-18 12:59:07,552 INFO L168 Benchmark]: RCFGBuilder took 1297.86 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 163.4 MB in the beginning and 178.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2020-08-18 12:59:07,555 INFO L168 Benchmark]: TraceAbstraction took 24446.72 ms. Allocated memory was 230.2 MB in the beginning and 626.0 MB in the end (delta: 395.8 MB). Free memory was 177.0 MB in the beginning and 158.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 501.6 MB. Max. memory is 7.1 GB. [2020-08-18 12:59:07,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.8 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.61 ms. Allocated memory was 136.8 MB in the beginning and 201.9 MB in the end (delta: 65.0 MB). Free memory was 98.1 MB in the beginning and 167.8 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.90 ms. Allocated memory is still 201.9 MB. Free memory was 167.8 MB in the beginning and 163.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1297.86 ms. Allocated memory was 201.9 MB in the beginning and 230.2 MB in the end (delta: 28.3 MB). Free memory was 163.4 MB in the beginning and 178.5 MB in the end (delta: -15.1 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24446.72 ms. Allocated memory was 230.2 MB in the beginning and 626.0 MB in the end (delta: 395.8 MB). Free memory was 177.0 MB in the beginning and 158.3 MB in the end (delta: 18.7 MB). Peak memory consumption was 501.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((a21 == 1 && 5 == a16) || !(\old(a17) == 1)) || (a21 == 1 && a20 <= 0)) || !(\old(a7) <= 0)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || !(14 == a8)) || (5 == a16 && a17 == 1)) || (((a21 == 1 && a16 == 6) && a7 <= 0) && a20 == 1)) || !(5 == \old(a16))) || (((a21 == 1 && a7 <= 0) && a20 == 1) && a16 == 4)) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.0s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 4517 SDslu, 416 SDs, 0 SdLazy, 9063 SolverSat, 1771 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3950occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 1488 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 343 NumberOfFragments, 490 HoareAnnotationTreeSize, 189 FomulaSimplifications, 241377 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8571 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1819 NumberOfCodeBlocks, 1819 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1810 ConstructedInterpolants, 0 QuantifiedInterpolants, 866385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 1295/1578 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...