/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 06:19:00,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:19:00,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:19:00,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:19:00,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:19:00,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:19:00,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:19:00,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:19:00,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:19:00,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:19:00,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:19:00,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:19:00,448 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:19:00,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:19:00,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:19:00,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:19:00,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:19:00,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:19:00,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:19:00,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:19:00,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:19:00,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:19:00,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:19:00,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:19:00,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 06:19:00,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:19:00,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:19:00,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:19:00,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 06:19:00,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:19:00,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:19:00,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:19:00,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:19:00,515 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:19:00,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:19:00,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:19:00,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:19:00,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 06:19:00,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:19:00,517 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:19:00,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:19:00,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:19:00,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:19:00,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:19:00,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:19:00,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:19:00,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:19:00,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:19:00,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:19:00,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:19:00,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:19:00,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:19:00,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:19:00,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:19:00,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:19:00,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:19:00,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:19:00,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:19:00,843 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:19:00,844 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-08-22 06:19:00,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb5d30f9/c166e9a9ec3947879996459c67c28b82/FLAGff06e638d [2020-08-22 06:19:01,473 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:19:01,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-08-22 06:19:01,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb5d30f9/c166e9a9ec3947879996459c67c28b82/FLAGff06e638d [2020-08-22 06:19:01,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eb5d30f9/c166e9a9ec3947879996459c67c28b82 [2020-08-22 06:19:01,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:19:01,748 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:19:01,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:19:01,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:19:01,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:19:01,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:19:01" (1/1) ... [2020-08-22 06:19:01,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415e85b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:01, skipping insertion in model container [2020-08-22 06:19:01,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:19:01" (1/1) ... [2020-08-22 06:19:01,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:19:01,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:19:02,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:19:02,358 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:19:02,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:19:02,506 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:19:02,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02 WrapperNode [2020-08-22 06:19:02,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:19:02,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:19:02,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:19:02,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:19:02,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... [2020-08-22 06:19:02,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:19:02,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:19:02,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:19:02,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:19:02,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:19:02,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:19:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:19:02,693 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 06:19:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:19:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 06:19:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:19:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:19:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 06:19:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:19:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:19:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:19:03,922 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:19:03,922 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 06:19:03,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:19:03 BoogieIcfgContainer [2020-08-22 06:19:03,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:19:03,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:19:03,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:19:03,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:19:03,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:19:01" (1/3) ... [2020-08-22 06:19:03,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdff8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:19:03, skipping insertion in model container [2020-08-22 06:19:03,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:19:02" (2/3) ... [2020-08-22 06:19:03,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cdff8e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:19:03, skipping insertion in model container [2020-08-22 06:19:03,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:19:03" (3/3) ... [2020-08-22 06:19:03,938 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-08-22 06:19:03,949 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:19:03,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:19:03,975 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:19:04,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:19:04,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:19:04,006 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:19:04,006 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:19:04,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:19:04,007 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:19:04,007 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:19:04,007 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:19:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-08-22 06:19:04,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-08-22 06:19:04,046 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:04,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:04,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:04,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2020-08-22 06:19:04,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:04,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055819471] [2020-08-22 06:19:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:04,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:04,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055819471] [2020-08-22 06:19:04,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:19:04,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 06:19:04,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40080146] [2020-08-22 06:19:04,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:19:04,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:04,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:19:04,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:19:04,765 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-08-22 06:19:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:06,772 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-08-22 06:19:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:19:06,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-08-22 06:19:06,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:06,794 INFO L225 Difference]: With dead ends: 698 [2020-08-22 06:19:06,794 INFO L226 Difference]: Without dead ends: 423 [2020-08-22 06:19:06,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:19:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-08-22 06:19:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-08-22 06:19:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-08-22 06:19:06,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-08-22 06:19:06,916 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 121 [2020-08-22 06:19:06,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:06,917 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-08-22 06:19:06,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:19:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-08-22 06:19:06,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-08-22 06:19:06,923 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:06,924 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:06,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:19:06,924 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:06,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:06,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1654189344, now seen corresponding path program 1 times [2020-08-22 06:19:06,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:06,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398255208] [2020-08-22 06:19:06,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:07,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:07,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:07,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398255208] [2020-08-22 06:19:07,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:19:07,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 06:19:07,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585281742] [2020-08-22 06:19:07,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:19:07,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:07,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:19:07,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:19:07,138 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-08-22 06:19:08,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:08,696 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-08-22 06:19:08,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 06:19:08,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-08-22 06:19:08,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:08,704 INFO L225 Difference]: With dead ends: 1130 [2020-08-22 06:19:08,704 INFO L226 Difference]: Without dead ends: 719 [2020-08-22 06:19:08,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-08-22 06:19:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-08-22 06:19:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-08-22 06:19:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-22 06:19:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-08-22 06:19:08,767 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 131 [2020-08-22 06:19:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:08,768 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-08-22 06:19:08,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:19:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-08-22 06:19:08,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-08-22 06:19:08,774 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:08,774 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:08,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:19:08,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:08,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:08,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2020-08-22 06:19:08,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:08,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780509460] [2020-08-22 06:19:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:09,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:09,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:09,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:09,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780509460] [2020-08-22 06:19:09,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:09,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 06:19:09,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533553860] [2020-08-22 06:19:09,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 06:19:09,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:09,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 06:19:09,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 06:19:09,272 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 6 states. [2020-08-22 06:19:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:10,522 INFO L93 Difference]: Finished difference Result 1493 states and 2137 transitions. [2020-08-22 06:19:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:19:10,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-08-22 06:19:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:10,530 INFO L225 Difference]: With dead ends: 1493 [2020-08-22 06:19:10,530 INFO L226 Difference]: Without dead ends: 701 [2020-08-22 06:19:10,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:19:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-22 06:19:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-22 06:19:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-22 06:19:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 890 transitions. [2020-08-22 06:19:10,569 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 890 transitions. Word has length 132 [2020-08-22 06:19:10,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:10,569 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 890 transitions. [2020-08-22 06:19:10,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 06:19:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 890 transitions. [2020-08-22 06:19:10,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-08-22 06:19:10,575 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:10,575 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:10,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:19:10,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:10,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1679080988, now seen corresponding path program 1 times [2020-08-22 06:19:10,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:10,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376778491] [2020-08-22 06:19:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:10,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:10,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:10,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376778491] [2020-08-22 06:19:10,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:10,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 06:19:10,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783989455] [2020-08-22 06:19:10,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:19:10,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:10,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:19:10,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:19:10,919 INFO L87 Difference]: Start difference. First operand 695 states and 890 transitions. Second operand 7 states. [2020-08-22 06:19:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:12,018 INFO L93 Difference]: Finished difference Result 1472 states and 1929 transitions. [2020-08-22 06:19:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:19:12,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-08-22 06:19:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:12,025 INFO L225 Difference]: With dead ends: 1472 [2020-08-22 06:19:12,026 INFO L226 Difference]: Without dead ends: 701 [2020-08-22 06:19:12,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:19:12,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-08-22 06:19:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 695. [2020-08-22 06:19:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-08-22 06:19:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 885 transitions. [2020-08-22 06:19:12,076 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 885 transitions. Word has length 133 [2020-08-22 06:19:12,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:12,076 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 885 transitions. [2020-08-22 06:19:12,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:19:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 885 transitions. [2020-08-22 06:19:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-22 06:19:12,082 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:12,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:12,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:19:12,083 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash 982548902, now seen corresponding path program 1 times [2020-08-22 06:19:12,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:12,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586313194] [2020-08-22 06:19:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:12,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:12,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586313194] [2020-08-22 06:19:12,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:12,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 06:19:12,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017110791] [2020-08-22 06:19:12,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 06:19:12,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:12,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 06:19:12,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 06:19:12,328 INFO L87 Difference]: Start difference. First operand 695 states and 885 transitions. Second operand 6 states. [2020-08-22 06:19:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:13,888 INFO L93 Difference]: Finished difference Result 1938 states and 2564 transitions. [2020-08-22 06:19:13,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:19:13,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-08-22 06:19:13,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:13,897 INFO L225 Difference]: With dead ends: 1938 [2020-08-22 06:19:13,897 INFO L226 Difference]: Without dead ends: 1249 [2020-08-22 06:19:13,899 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:19:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-08-22 06:19:13,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1245. [2020-08-22 06:19:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-08-22 06:19:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1570 transitions. [2020-08-22 06:19:13,942 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1570 transitions. Word has length 136 [2020-08-22 06:19:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:13,943 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1570 transitions. [2020-08-22 06:19:13,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 06:19:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1570 transitions. [2020-08-22 06:19:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-08-22 06:19:13,948 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:13,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:13,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:19:13,948 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:13,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:13,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1645328590, now seen corresponding path program 1 times [2020-08-22 06:19:13,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:13,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982528099] [2020-08-22 06:19:13,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:14,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:14,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 49 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:19:14,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982528099] [2020-08-22 06:19:14,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:14,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 06:19:14,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383120294] [2020-08-22 06:19:14,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:19:14,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:14,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:19:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:19:14,238 INFO L87 Difference]: Start difference. First operand 1245 states and 1570 transitions. Second operand 5 states. [2020-08-22 06:19:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:15,209 INFO L93 Difference]: Finished difference Result 3312 states and 4254 transitions. [2020-08-22 06:19:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 06:19:15,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-08-22 06:19:15,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:15,232 INFO L225 Difference]: With dead ends: 3312 [2020-08-22 06:19:15,232 INFO L226 Difference]: Without dead ends: 2073 [2020-08-22 06:19:15,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 06:19:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2020-08-22 06:19:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1660. [2020-08-22 06:19:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2020-08-22 06:19:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2077 transitions. [2020-08-22 06:19:15,308 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2077 transitions. Word has length 174 [2020-08-22 06:19:15,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:15,309 INFO L479 AbstractCegarLoop]: Abstraction has 1660 states and 2077 transitions. [2020-08-22 06:19:15,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:19:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2077 transitions. [2020-08-22 06:19:15,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-08-22 06:19:15,316 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:15,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:15,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:19:15,316 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:15,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1399651525, now seen corresponding path program 1 times [2020-08-22 06:19:15,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:15,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14570792] [2020-08-22 06:19:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:15,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:15,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:15,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:19:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 06:19:15,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14570792] [2020-08-22 06:19:15,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:15,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 06:19:15,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544261514] [2020-08-22 06:19:15,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:19:15,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:19:15,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:19:15,625 INFO L87 Difference]: Start difference. First operand 1660 states and 2077 transitions. Second operand 7 states. [2020-08-22 06:19:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:17,029 INFO L93 Difference]: Finished difference Result 4049 states and 5206 transitions. [2020-08-22 06:19:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:19:17,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-08-22 06:19:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:17,045 INFO L225 Difference]: With dead ends: 4049 [2020-08-22 06:19:17,045 INFO L226 Difference]: Without dead ends: 2395 [2020-08-22 06:19:17,051 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 [2020-08-22 06:19:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2020-08-22 06:19:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2230. [2020-08-22 06:19:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2230 states. [2020-08-22 06:19:17,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2230 states to 2230 states and 2778 transitions. [2020-08-22 06:19:17,129 INFO L78 Accepts]: Start accepts. Automaton has 2230 states and 2778 transitions. Word has length 187 [2020-08-22 06:19:17,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:17,130 INFO L479 AbstractCegarLoop]: Abstraction has 2230 states and 2778 transitions. [2020-08-22 06:19:17,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:19:17,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2230 states and 2778 transitions. [2020-08-22 06:19:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-08-22 06:19:17,138 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:17,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:17,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 06:19:17,139 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:17,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:17,139 INFO L82 PathProgramCache]: Analyzing trace with hash -476697068, now seen corresponding path program 1 times [2020-08-22 06:19:17,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:17,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967243164] [2020-08-22 06:19:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:17,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:17,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:19:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:17,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-22 06:19:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 83 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-08-22 06:19:17,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967243164] [2020-08-22 06:19:17,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:17,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 06:19:17,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166411629] [2020-08-22 06:19:17,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:19:17,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:17,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:19:17,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:19:17,444 INFO L87 Difference]: Start difference. First operand 2230 states and 2778 transitions. Second operand 7 states. [2020-08-22 06:19:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:18,732 INFO L93 Difference]: Finished difference Result 4877 states and 6098 transitions. [2020-08-22 06:19:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:19:18,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-08-22 06:19:18,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:18,746 INFO L225 Difference]: With dead ends: 4877 [2020-08-22 06:19:18,746 INFO L226 Difference]: Without dead ends: 2653 [2020-08-22 06:19:18,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:19:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2653 states. [2020-08-22 06:19:18,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2653 to 2643. [2020-08-22 06:19:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2643 states. [2020-08-22 06:19:18,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3232 transitions. [2020-08-22 06:19:18,832 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3232 transitions. Word has length 203 [2020-08-22 06:19:18,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:18,833 INFO L479 AbstractCegarLoop]: Abstraction has 2643 states and 3232 transitions. [2020-08-22 06:19:18,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:19:18,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3232 transitions. [2020-08-22 06:19:18,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-08-22 06:19:18,842 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:19:18,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 06:19:18,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 06:19:18,843 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:19:18,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:19:18,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1638592990, now seen corresponding path program 1 times [2020-08-22 06:19:18,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:19:18,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295012163] [2020-08-22 06:19:18,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:19:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:19,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:19:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:19,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 06:19:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 06:19:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:19,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 06:19:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:19:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 104 proven. 21 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-22 06:19:19,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295012163] [2020-08-22 06:19:19,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:19:19,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 06:19:19,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978457498] [2020-08-22 06:19:19,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:19:19,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:19:19,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:19:19,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:19:19,206 INFO L87 Difference]: Start difference. First operand 2643 states and 3232 transitions. Second operand 8 states. [2020-08-22 06:19:22,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:19:22,065 INFO L93 Difference]: Finished difference Result 5286 states and 6542 transitions. [2020-08-22 06:19:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 06:19:22,066 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 237 [2020-08-22 06:19:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:19:22,067 INFO L225 Difference]: With dead ends: 5286 [2020-08-22 06:19:22,068 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 06:19:22,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-08-22 06:19:22,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 06:19:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 06:19:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 06:19:22,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 06:19:22,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 237 [2020-08-22 06:19:22,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:19:22,080 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 06:19:22,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:19:22,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 06:19:22,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 06:19:22,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 06:19:22,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 06:19:22,488 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 113 [2020-08-22 06:19:22,610 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 113 [2020-08-22 06:19:22,770 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 38 [2020-08-22 06:19:23,502 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 57 [2020-08-22 06:19:23,761 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-08-22 06:19:23,987 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 49 [2020-08-22 06:19:23,992 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 06:19:23,992 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-08-22 06:19:23,993 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 06:19:23,993 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-08-22 06:19:23,993 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-08-22 06:19:23,993 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,993 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-08-22 06:19:23,994 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-08-22 06:19:23,995 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,996 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-08-22 06:19:23,997 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-08-22 06:19:23,998 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-08-22 06:19:23,999 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-08-22 06:19:24,000 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-08-22 06:19:24,001 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-08-22 06:19:24,002 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-08-22 06:19:24,003 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-08-22 06:19:24,004 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-08-22 06:19:24,005 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-08-22 06:19:24,006 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,007 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-08-22 06:19:24,008 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,009 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-08-22 06:19:24,010 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-08-22 06:19:24,011 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-08-22 06:19:24,011 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-08-22 06:19:24,011 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse6 (not (= |old(~a17~0)| 1))) (.cse5 (= ~a17~0 1)) (.cse7 (not (= |old(~a20~0)| 1))) (.cse8 (= 5 |old(~a16~0)|)) (.cse10 (and (= ~a17~0 |old(~a17~0)|) .cse0 .cse1 .cse2 .cse3 .cse4)) (.cse9 (not (= ~a12~0 8)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8 .cse9) (or .cse6 (not (<= |old(~a21~0)| 0)) (and .cse0 .cse1 .cse2 .cse4 (= 5 ~a16~0) .cse5) (not .cse8) .cse9) (or .cse7 .cse10 .cse8 (= |old(~a21~0)| 1) .cse9) (or .cse10 (not (<= |old(~a16~0)| 4)) .cse9) (or (= |old(~a8~0)| 13) (not (<= |old(~a16~0)| 5)) .cse10 .cse9) (or (not (<= 15 |old(~a8~0)|)) .cse10 .cse9)))) [2020-08-22 06:19:24,011 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,012 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-08-22 06:19:24,013 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,014 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-08-22 06:19:24,015 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-08-22 06:19:24,016 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-08-22 06:19:24,017 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-08-22 06:19:24,018 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-08-22 06:19:24,019 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 06:19:24,019 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (not (= ~a7~0 1)) (= 5 ~a16~0) (= ~a17~0 1)) [2020-08-22 06:19:24,019 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 06:19:24,019 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 06:19:24,019 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 15) (= 5 ~a16~0)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (= |old(~a7~0)| 1)) [2020-08-22 06:19:24,019 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-08-22 06:19:24,020 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 5 ~a16~0))) (let ((.cse2 (not .cse0)) (.cse3 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (= |old(~a20~0)| 1)) (and (<= ~a21~0 0) .cse0 .cse1) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (and .cse2 (not (= ~a21~0 1)) .cse3) (<= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse2 .cse3 .cse1) (not (= ~a12~0 8))))) [2020-08-22 06:19:24,020 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-08-22 06:19:24,020 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-08-22 06:19:24,020 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 5 ~a16~0))) (let ((.cse2 (not .cse0)) (.cse3 (= ~a20~0 1)) (.cse1 (= ~a17~0 1))) (or (not (= |old(~a20~0)| 1)) (and (<= ~a21~0 0) .cse0 .cse1) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1) (<= 15 ~a8~0) (not (= |old(~a17~0)| 1)) (and (<= ~a16~0 5) (not (= ~a8~0 13))) (and .cse2 (not (= ~a21~0 1)) .cse3) (<= ~a16~0 4) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (and .cse2 .cse3 .cse1) (not (= ~a12~0 8))))) [2020-08-22 06:19:24,020 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-08-22 06:19:24,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:19:24 BoogieIcfgContainer [2020-08-22 06:19:24,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 06:19:24,056 INFO L168 Benchmark]: Toolchain (without parser) took 22301.34 ms. Allocated memory was 146.8 MB in the beginning and 507.0 MB in the end (delta: 360.2 MB). Free memory was 100.0 MB in the beginning and 233.8 MB in the end (delta: -133.8 MB). Peak memory consumption was 370.8 MB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,057 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.58 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 100.0 MB in the beginning and 171.5 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,058 INFO L168 Benchmark]: Boogie Preprocessor took 103.25 ms. Allocated memory is still 206.6 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,059 INFO L168 Benchmark]: RCFGBuilder took 1318.31 ms. Allocated memory was 206.6 MB in the beginning and 239.6 MB in the end (delta: 33.0 MB). Free memory was 166.5 MB in the beginning and 179.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,060 INFO L168 Benchmark]: TraceAbstraction took 20117.55 ms. Allocated memory was 239.6 MB in the beginning and 507.0 MB in the end (delta: 267.4 MB). Free memory was 179.0 MB in the beginning and 233.8 MB in the end (delta: -54.8 MB). Peak memory consumption was 357.0 MB. Max. memory is 7.1 GB. [2020-08-22 06:19:24,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.58 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 100.0 MB in the beginning and 171.5 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.25 ms. Allocated memory is still 206.6 MB. Free memory was 171.5 MB in the beginning and 166.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1318.31 ms. Allocated memory was 206.6 MB in the beginning and 239.6 MB in the end (delta: 33.0 MB). Free memory was 166.5 MB in the beginning and 179.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20117.55 ms. Allocated memory was 239.6 MB in the beginning and 507.0 MB in the end (delta: 267.4 MB). Free memory was 179.0 MB in the beginning and 233.8 MB in the end (delta: -54.8 MB). Peak memory consumption was 357.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: 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(a20) == 1) || ((a21 <= 0 && 5 == a16) && a17 == 1)) || !(\old(a21) == 1)) || \old(a7) == 1) || 15 <= a8) || !(\old(a17) == 1)) || (a16 <= 5 && !(a8 == 13))) || ((!(5 == a16) && !(a21 == 1)) && a20 == 1)) || a16 <= 4) || !(5 == \old(a16))) || !(15 == \old(a8))) || ((!(5 == a16) && a20 == 1) && a17 == 1)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 4473 SDslu, 274 SDs, 0 SdLazy, 6900 SolverSat, 1179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2643occurred 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, 9 MinimizatonAttempts, 632 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 102 PreInvPairs, 146 NumberOfFragments, 472 HoareAnnotationTreeSize, 102 FomulaSimplifications, 124784 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7316 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1454 NumberOfCodeBlocks, 1454 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1445 ConstructedInterpolants, 0 QuantifiedInterpolants, 1161136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 398/433 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...