/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:22:17,214 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-09-21 10:22:17,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:22:17,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:22:17,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:22:17,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:22:17,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:22:17,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:22:17,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:22:17,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:22:17,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:22:17,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:22:17,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:22:17,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:22:17,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-21 10:22:17,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:22:17,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:22:17,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:22:17,334 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 [2020-09-21 10:22:17,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:22:17,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:22:17,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:22:17,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:22:17,382 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:22:17,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:22:17,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:22:17,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:22:17,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:22:17,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:22:17,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:22:17,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:22:17,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:22:17,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:22:17,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:22:17,386 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:22:17,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:22:17,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:22:17,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:22:17,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:22:17,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:22:17,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:22:17,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:22:17,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:22:17,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:22:17,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:22:17,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:22:17,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:22:17,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:22:17,389 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 -> false [2020-09-21 10:22:17,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:22:17,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:22:17,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:22:17,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:22:17,856 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:22:17,857 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-09-21 10:22:17,947 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f412944d/dd56fd5a34a340fd8d90cc7e29b0eea4/FLAG17754f019 [2020-09-21 10:22:18,548 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:22:18,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-09-21 10:22:18,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f412944d/dd56fd5a34a340fd8d90cc7e29b0eea4/FLAG17754f019 [2020-09-21 10:22:18,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4f412944d/dd56fd5a34a340fd8d90cc7e29b0eea4 [2020-09-21 10:22:18,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:22:18,825 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:22:18,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:22:18,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:22:18,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:22:18,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:22:18" (1/1) ... [2020-09-21 10:22:18,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:18, skipping insertion in model container [2020-09-21 10:22:18,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:22:18" (1/1) ... [2020-09-21 10:22:18,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:22:18,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:22:19,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:22:19,394 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:22:19,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:22:19,652 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:22:19,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19 WrapperNode [2020-09-21 10:22:19,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:22:19,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:22:19,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:22:19,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:22:19,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... [2020-09-21 10:22:19,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:22:19,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:22:19,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:22:19,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:22:19,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:22:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:22:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:22:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 10:22:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:22:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 10:22:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:22:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:22:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 10:22:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:22:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:22:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:22:21,179 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:22:21,179 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 10:22:21,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:22:21 BoogieIcfgContainer [2020-09-21 10:22:21,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:22:21,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:22:21,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:22:21,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:22:21,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:22:18" (1/3) ... [2020-09-21 10:22:21,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4445c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:22:21, skipping insertion in model container [2020-09-21 10:22:21,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:22:19" (2/3) ... [2020-09-21 10:22:21,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4445c8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:22:21, skipping insertion in model container [2020-09-21 10:22:21,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:22:21" (3/3) ... [2020-09-21 10:22:21,199 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-09-21 10:22:21,213 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:22:21,223 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:22:21,245 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:22:21,278 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:22:21,278 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:22:21,278 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:22:21,278 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:22:21,279 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:22:21,281 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:22:21,281 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:22:21,281 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:22:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-21 10:22:21,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-21 10:22:21,321 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:21,323 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] [2020-09-21 10:22:21,323 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:21,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:21,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-09-21 10:22:21,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:21,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954212464] [2020-09-21 10:22:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:21,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:22:21,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954212464] [2020-09-21 10:22:21,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:22:21,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:22:21,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435932548] [2020-09-21 10:22:21,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:22:21,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:21,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:22:21,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:22:21,959 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-09-21 10:22:23,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:23,998 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-09-21 10:22:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 10:22:24,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-09-21 10:22:24,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:24,021 INFO L225 Difference]: With dead ends: 698 [2020-09-21 10:22:24,022 INFO L226 Difference]: Without dead ends: 423 [2020-09-21 10:22:24,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:24,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-21 10:22:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-09-21 10:22:24,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-21 10:22:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-09-21 10:22:24,141 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 100 [2020-09-21 10:22:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:24,142 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-09-21 10:22:24,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:22:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-09-21 10:22:24,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-09-21 10:22:24,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:24,150 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:22:24,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:22:24,151 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:24,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-09-21 10:22:24,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:24,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249188188] [2020-09-21 10:22:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:24,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:24,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:22:24,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249188188] [2020-09-21 10:22:24,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:22:24,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 10:22:24,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155082126] [2020-09-21 10:22:24,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:22:24,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:24,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:22:24,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:22:24,384 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-09-21 10:22:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:25,984 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-09-21 10:22:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:22:25,984 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-09-21 10:22:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:25,992 INFO L225 Difference]: With dead ends: 1130 [2020-09-21 10:22:25,992 INFO L226 Difference]: Without dead ends: 719 [2020-09-21 10:22:25,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:22:25,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-09-21 10:22:26,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-09-21 10:22:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-09-21 10:22:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-09-21 10:22:26,054 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 110 [2020-09-21 10:22:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:26,054 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-09-21 10:22:26,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:22:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-09-21 10:22:26,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 10:22:26,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:26,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:22:26,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:22:26,063 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:26,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:26,063 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-09-21 10:22:26,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:26,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872774631] [2020-09-21 10:22:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:26,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:22:26,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872774631] [2020-09-21 10:22:26,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:26,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 10:22:26,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636375770] [2020-09-21 10:22:26,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:22:26,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:26,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:22:26,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:22:26,266 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 5 states. [2020-09-21 10:22:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:27,463 INFO L93 Difference]: Finished difference Result 1944 states and 2781 transitions. [2020-09-21 10:22:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:22:27,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-09-21 10:22:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:27,472 INFO L225 Difference]: With dead ends: 1944 [2020-09-21 10:22:27,472 INFO L226 Difference]: Without dead ends: 1253 [2020-09-21 10:22:27,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:22:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-09-21 10:22:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1110. [2020-09-21 10:22:27,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1110 states. [2020-09-21 10:22:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1492 transitions. [2020-09-21 10:22:27,526 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1492 transitions. Word has length 111 [2020-09-21 10:22:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:27,526 INFO L479 AbstractCegarLoop]: Abstraction has 1110 states and 1492 transitions. [2020-09-21 10:22:27,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:22:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1492 transitions. [2020-09-21 10:22:27,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-21 10:22:27,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:27,540 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:22:27,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:22:27,540 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:27,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:27,541 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-09-21 10:22:27,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:27,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599293905] [2020-09-21 10:22:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:27,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:27,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:22:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:22:27,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599293905] [2020-09-21 10:22:27,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:27,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:22:27,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10793454] [2020-09-21 10:22:27,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:22:27,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:27,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:22:27,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:27,816 INFO L87 Difference]: Start difference. First operand 1110 states and 1492 transitions. Second operand 7 states. [2020-09-21 10:22:29,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:29,428 INFO L93 Difference]: Finished difference Result 2677 states and 3751 transitions. [2020-09-21 10:22:29,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:22:29,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-09-21 10:22:29,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:29,442 INFO L225 Difference]: With dead ends: 2677 [2020-09-21 10:22:29,442 INFO L226 Difference]: Without dead ends: 1573 [2020-09-21 10:22:29,447 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 [2020-09-21 10:22:29,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-09-21 10:22:29,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1120. [2020-09-21 10:22:29,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1120 states. [2020-09-21 10:22:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1503 transitions. [2020-09-21 10:22:29,526 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1503 transitions. Word has length 142 [2020-09-21 10:22:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:29,527 INFO L479 AbstractCegarLoop]: Abstraction has 1120 states and 1503 transitions. [2020-09-21 10:22:29,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:22:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1503 transitions. [2020-09-21 10:22:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-21 10:22:29,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:29,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:22:29,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:22:29,535 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:29,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:29,535 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-09-21 10:22:29,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:29,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [499307150] [2020-09-21 10:22:29,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:29,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:29,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:29,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 10:22:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:29,790 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:22:29,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [499307150] [2020-09-21 10:22:29,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:29,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:22:29,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274244684] [2020-09-21 10:22:29,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:22:29,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:29,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:22:29,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:29,793 INFO L87 Difference]: Start difference. First operand 1120 states and 1503 transitions. Second operand 7 states. [2020-09-21 10:22:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:31,121 INFO L93 Difference]: Finished difference Result 2687 states and 3686 transitions. [2020-09-21 10:22:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:22:31,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-09-21 10:22:31,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:31,131 INFO L225 Difference]: With dead ends: 2687 [2020-09-21 10:22:31,132 INFO L226 Difference]: Without dead ends: 1573 [2020-09-21 10:22:31,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:22:31,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2020-09-21 10:22:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1418. [2020-09-21 10:22:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2020-09-21 10:22:31,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 1860 transitions. [2020-09-21 10:22:31,189 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 1860 transitions. Word has length 146 [2020-09-21 10:22:31,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:31,191 INFO L479 AbstractCegarLoop]: Abstraction has 1418 states and 1860 transitions. [2020-09-21 10:22:31,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:22:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 1860 transitions. [2020-09-21 10:22:31,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-09-21 10:22:31,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:31,197 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 10:22:31,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:22:31,198 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:31,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:31,199 INFO L82 PathProgramCache]: Analyzing trace with hash 255910170, now seen corresponding path program 1 times [2020-09-21 10:22:31,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:31,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473186857] [2020-09-21 10:22:31,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:31,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:31,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:31,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 10:22:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-21 10:22:31,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473186857] [2020-09-21 10:22:31,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:31,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 10:22:31,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643863828] [2020-09-21 10:22:31,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:22:31,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:31,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:22:31,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:22:31,440 INFO L87 Difference]: Start difference. First operand 1418 states and 1860 transitions. Second operand 5 states. [2020-09-21 10:22:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:32,556 INFO L93 Difference]: Finished difference Result 2836 states and 3728 transitions. [2020-09-21 10:22:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:22:32,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 164 [2020-09-21 10:22:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:32,564 INFO L225 Difference]: With dead ends: 2836 [2020-09-21 10:22:32,564 INFO L226 Difference]: Without dead ends: 1424 [2020-09-21 10:22:32,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:22:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-09-21 10:22:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1273. [2020-09-21 10:22:32,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1273 states. [2020-09-21 10:22:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1582 transitions. [2020-09-21 10:22:32,609 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1582 transitions. Word has length 164 [2020-09-21 10:22:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:32,609 INFO L479 AbstractCegarLoop]: Abstraction has 1273 states and 1582 transitions. [2020-09-21 10:22:32,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:22:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1582 transitions. [2020-09-21 10:22:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-21 10:22:32,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:32,614 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-09-21 10:22:32,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:22:32,615 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:32,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1440991952, now seen corresponding path program 1 times [2020-09-21 10:22:32,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:32,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1203985033] [2020-09-21 10:22:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:32,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:32,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:22:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 10:22:32,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1203985033] [2020-09-21 10:22:32,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:32,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:22:32,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602226328] [2020-09-21 10:22:32,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:22:32,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:32,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:22:32,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:32,841 INFO L87 Difference]: Start difference. First operand 1273 states and 1582 transitions. Second operand 7 states. [2020-09-21 10:22:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:34,153 INFO L93 Difference]: Finished difference Result 3009 states and 3901 transitions. [2020-09-21 10:22:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:22:34,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-21 10:22:34,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:34,162 INFO L225 Difference]: With dead ends: 3009 [2020-09-21 10:22:34,162 INFO L226 Difference]: Without dead ends: 1742 [2020-09-21 10:22:34,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:22:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2020-09-21 10:22:34,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1710. [2020-09-21 10:22:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1710 states. [2020-09-21 10:22:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2152 transitions. [2020-09-21 10:22:34,217 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2152 transitions. Word has length 166 [2020-09-21 10:22:34,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:34,218 INFO L479 AbstractCegarLoop]: Abstraction has 1710 states and 2152 transitions. [2020-09-21 10:22:34,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:22:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2152 transitions. [2020-09-21 10:22:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-21 10:22:34,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:34,223 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 10:22:34,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 10:22:34,224 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:34,224 INFO L82 PathProgramCache]: Analyzing trace with hash -553810399, now seen corresponding path program 1 times [2020-09-21 10:22:34,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:34,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140314710] [2020-09-21 10:22:34,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:34,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:34,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 10:22:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:22:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-21 10:22:34,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140314710] [2020-09-21 10:22:34,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:34,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:22:34,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222313422] [2020-09-21 10:22:34,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:22:34,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:34,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:22:34,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:34,439 INFO L87 Difference]: Start difference. First operand 1710 states and 2152 transitions. Second operand 7 states. [2020-09-21 10:22:35,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:35,872 INFO L93 Difference]: Finished difference Result 3839 states and 4836 transitions. [2020-09-21 10:22:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:22:35,873 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-09-21 10:22:35,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:35,882 INFO L225 Difference]: With dead ends: 3839 [2020-09-21 10:22:35,882 INFO L226 Difference]: Without dead ends: 2135 [2020-09-21 10:22:35,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 10:22:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2020-09-21 10:22:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2121. [2020-09-21 10:22:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2121 states. [2020-09-21 10:22:35,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 2605 transitions. [2020-09-21 10:22:35,942 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 2605 transitions. Word has length 182 [2020-09-21 10:22:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:35,943 INFO L479 AbstractCegarLoop]: Abstraction has 2121 states and 2605 transitions. [2020-09-21 10:22:35,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:22:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 2605 transitions. [2020-09-21 10:22:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-21 10:22:35,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:35,952 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-09-21 10:22:35,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 10:22:35,953 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:35,953 INFO L82 PathProgramCache]: Analyzing trace with hash -648776304, now seen corresponding path program 1 times [2020-09-21 10:22:35,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:35,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638515403] [2020-09-21 10:22:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-21 10:22:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 10:22:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-09-21 10:22:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-21 10:22:36,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638515403] [2020-09-21 10:22:36,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:36,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 10:22:36,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489065722] [2020-09-21 10:22:36,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 10:22:36,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:36,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 10:22:36,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 10:22:36,255 INFO L87 Difference]: Start difference. First operand 2121 states and 2605 transitions. Second operand 7 states. [2020-09-21 10:22:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:37,687 INFO L93 Difference]: Finished difference Result 4129 states and 5147 transitions. [2020-09-21 10:22:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 10:22:37,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-21 10:22:37,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:37,696 INFO L225 Difference]: With dead ends: 4129 [2020-09-21 10:22:37,696 INFO L226 Difference]: Without dead ends: 2149 [2020-09-21 10:22:37,701 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 [2020-09-21 10:22:37,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2020-09-21 10:22:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1853. [2020-09-21 10:22:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1853 states. [2020-09-21 10:22:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2258 transitions. [2020-09-21 10:22:37,756 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2258 transitions. Word has length 204 [2020-09-21 10:22:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:37,756 INFO L479 AbstractCegarLoop]: Abstraction has 1853 states and 2258 transitions. [2020-09-21 10:22:37,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 10:22:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2258 transitions. [2020-09-21 10:22:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-21 10:22:37,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:22:37,763 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 10:22:37,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 10:22:37,763 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:22:37,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:22:37,763 INFO L82 PathProgramCache]: Analyzing trace with hash 188921879, now seen corresponding path program 1 times [2020-09-21 10:22:37,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:22:37,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113967607] [2020-09-21 10:22:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:22:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:22:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 10:22:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:38,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:22:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:38,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-09-21 10:22:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:22:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-21 10:22:38,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113967607] [2020-09-21 10:22:38,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 10:22:38,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 10:22:38,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821316128] [2020-09-21 10:22:38,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:22:38,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:22:38,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:22:38,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:22:38,104 INFO L87 Difference]: Start difference. First operand 1853 states and 2258 transitions. Second operand 5 states. [2020-09-21 10:22:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:22:39,245 INFO L93 Difference]: Finished difference Result 3567 states and 4370 transitions. [2020-09-21 10:22:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:22:39,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-09-21 10:22:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:22:39,247 INFO L225 Difference]: With dead ends: 3567 [2020-09-21 10:22:39,247 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:22:39,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:22:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:22:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:22:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:22:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:22:39,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-09-21 10:22:39,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:22:39,255 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:22:39,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:22:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:22:39,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:22:39,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 10:22:39,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:22:40,341 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 45 [2020-09-21 10:22:40,605 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 45 [2020-09-21 10:22:41,709 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 45 [2020-09-21 10:22:41,968 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-09-21 10:22:42,160 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-09-21 10:22:42,164 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 10:22:42,165 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)|)) [2020-09-21 10:22:42,165 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 10:22:42,165 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-21 10:22:42,165 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-21 10:22:42,166 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,166 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,166 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,166 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,166 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-21 10:22:42,167 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,168 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-21 10:22:42,169 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-21 10:22:42,170 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,171 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-21 10:22:42,172 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-21 10:22:42,173 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-21 10:22:42,174 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,175 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-21 10:22:42,176 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,177 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-21 10:22:42,178 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-21 10:22:42,179 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-21 10:22:42,180 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,181 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-21 10:22:42,182 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-21 10:22:42,183 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-21 10:22:42,183 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-21 10:22:42,183 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-21 10:22:42,183 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-21 10:22:42,183 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (= |old(~a21~0)| 1)) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or .cse0 .cse1 (= |old(~a17~0)| 1)) (or .cse0 .cse1 .cse2) (or (not (<= 15 |old(~a8~0)|)) .cse1 (not .cse2)) (or (= |old(~a8~0)| 13) .cse0 .cse1) (or (not (= |old(~a20~0)| 1)) .cse1))) [2020-09-21 10:22:42,183 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,184 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-21 10:22:42,185 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,186 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-21 10:22:42,187 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-21 10:22:42,188 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-21 10:22:42,189 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-21 10:22:42,190 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 10:22:42,191 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a20~0 1) (= 5 ~a16~0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-09-21 10:22:42,191 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 10:22:42,191 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 10:22:42,191 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~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))) [2020-09-21 10:22:42,191 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-21 10:22:42,191 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (not (= ~a8~0 13))) (and .cse1 (not (= ~a17~0 1))) (not (<= 15 |old(~a8~0)|)) (and .cse1 (not .cse0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-09-21 10:22:42,191 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-21 10:22:42,191 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-21 10:22:42,192 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (and .cse1 (not (= ~a8~0 13))) (and .cse1 (not (= ~a17~0 1))) (not (<= 15 |old(~a8~0)|)) (and .cse1 (not .cse0)) (not (= |old(~a20~0)| 1)) (= ~a20~0 1) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)))) [2020-09-21 10:22:42,192 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-21 10:22:42,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 10:22:42 BoogieIcfgContainer [2020-09-21 10:22:42,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 10:22:42,219 INFO L168 Benchmark]: Toolchain (without parser) took 23400.62 ms. Allocated memory was 141.0 MB in the beginning and 528.0 MB in the end (delta: 386.9 MB). Free memory was 102.5 MB in the beginning and 421.0 MB in the end (delta: -318.5 MB). Peak memory consumption was 399.4 MB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,220 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.01 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 172.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,222 INFO L168 Benchmark]: Boogie Preprocessor took 110.92 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,223 INFO L168 Benchmark]: RCFGBuilder took 1422.07 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.9 MB in the beginning and 178.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,223 INFO L168 Benchmark]: TraceAbstraction took 21028.01 ms. Allocated memory was 237.5 MB in the beginning and 528.0 MB in the end (delta: 290.5 MB). Free memory was 178.1 MB in the beginning and 421.0 MB in the end (delta: -242.9 MB). Peak memory consumption was 378.5 MB. Max. memory is 7.1 GB. [2020-09-21 10:22:42,227 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 825.01 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 101.8 MB in the beginning and 172.7 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.92 ms. Allocated memory is still 206.6 MB. Free memory was 172.7 MB in the beginning and 167.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1422.07 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.9 MB in the beginning and 178.1 MB in the end (delta: -10.2 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21028.01 ms. Allocated memory was 237.5 MB in the beginning and 528.0 MB in the end (delta: 290.5 MB). Free memory was 178.1 MB in the beginning and 421.0 MB in the end (delta: -242.9 MB). Peak memory consumption was 378.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((!(\old(a17) == 1) || (a21 == 1 && 15 <= a8)) || (a16 <= 5 && !(a8 == 13))) || (a16 <= 5 && !(a17 == 1))) || !(15 <= \old(a8))) || (a16 <= 5 && !(a21 == 1))) || !(\old(a20) == 1)) || a20 == 1) || !(5 == \old(a16))) || !(\old(a21) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 264 SDtfs, 4082 SDslu, 355 SDs, 0 SdLazy, 7246 SolverSat, 1319 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2121occurred 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: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1272 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 101 PreInvPairs, 127 NumberOfFragments, 359 HoareAnnotationTreeSize, 101 FomulaSimplifications, 241462 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2229 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1541 NumberOfCodeBlocks, 1541 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1531 ConstructedInterpolants, 0 QuantifiedInterpolants, 648794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 666/712 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...