/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:26:54,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:26:54,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:26:54,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:26:54,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:26:54,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:26:54,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:26:54,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:26:54,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:26:54,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:26:54,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:26:54,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:26:54,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:26:54,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:26:54,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:26:54,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:26:54,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:26:54,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:26:54,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:26:54,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:26:54,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:26:54,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:26:54,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:26:54,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:26:54,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:26:54,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:26:54,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:26:54,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:26:54,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:26:54,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:26:54,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:26:54,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:26:54,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:26:54,402 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:26:54,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:26:54,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:26:54,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:26:54,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:26:54,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:26:54,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:26:54,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:26:54,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:26:54,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:26:54,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:26:54,405 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:26:54,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:26:54,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:26:54,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:26:54,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:26:54,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:26:54,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:26:54,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:26:54,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:26:54,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:26:54,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:26:54,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:54,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:26:54,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:26:54,407 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:26:54,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:26:54,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:26:54,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:26:54,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:26:54,689 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:26:54,690 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2020-07-21 11:26:54,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb5a01a/e645917be48b463ea37ffb8d4208d4c8/FLAG61b940a95 [2020-07-21 11:26:55,247 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:26:55,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2020-07-21 11:26:55,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb5a01a/e645917be48b463ea37ffb8d4208d4c8/FLAG61b940a95 [2020-07-21 11:26:55,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eb5a01a/e645917be48b463ea37ffb8d4208d4c8 [2020-07-21 11:26:55,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:26:55,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:26:55,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:26:55,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:26:55,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:26:55,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:55" (1/1) ... [2020-07-21 11:26:55,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5b008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:55, skipping insertion in model container [2020-07-21 11:26:55,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:26:55" (1/1) ... [2020-07-21 11:26:55,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:26:55,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:26:55,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:26:55,987 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:26:56,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:26:56,255 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:26:56,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56 WrapperNode [2020-07-21 11:26:56,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:26:56,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:26:56,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:26:56,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:26:56,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... [2020-07-21 11:26:56,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:26:56,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:26:56,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:26:56,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:26:56,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 11:26:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:26:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:26:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:26:56,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:26:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:26:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:26:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:26:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:26:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:26:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:26:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:26:57,610 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:26:57,611 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:26:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:57 BoogieIcfgContainer [2020-07-21 11:26:57,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:26:57,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:26:57,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:26:57,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:26:57,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:26:55" (1/3) ... [2020-07-21 11:26:57,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a2aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:57, skipping insertion in model container [2020-07-21 11:26:57,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:26:56" (2/3) ... [2020-07-21 11:26:57,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a2aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:26:57, skipping insertion in model container [2020-07-21 11:26:57,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:26:57" (3/3) ... [2020-07-21 11:26:57,632 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label10.c [2020-07-21 11:26:57,643 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:26:57,658 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:26:57,673 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:26:57,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:26:57,707 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:26:57,708 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:26:57,708 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:26:57,708 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:26:57,708 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:26:57,708 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:26:57,709 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:26:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 11:26:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 11:26:57,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:57,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:57,763 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:57,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:57,770 INFO L82 PathProgramCache]: Analyzing trace with hash 898563457, now seen corresponding path program 1 times [2020-07-21 11:26:57,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:57,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478466413] [2020-07-21 11:26:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:57,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:26:57,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:58,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:58,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478466413] [2020-07-21 11:26:58,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:58,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:26:58,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596392496] [2020-07-21 11:26:58,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:26:58,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:58,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:26:58,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:58,099 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 11:26:58,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:26:58,973 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 11:26:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:26:58,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-07-21 11:26:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:26:58,993 INFO L225 Difference]: With dead ends: 615 [2020-07-21 11:26:58,993 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 11:26:59,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:26:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 11:26:59,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 11:26:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 11:26:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 11:26:59,129 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 141 [2020-07-21 11:26:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:26:59,134 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 11:26:59,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:26:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 11:26:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 11:26:59,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:26:59,151 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:26:59,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:59,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:26:59,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:26:59,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1871287036, now seen corresponding path program 1 times [2020-07-21 11:26:59,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:26:59,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923071727] [2020-07-21 11:26:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:26:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:26:59,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:26:59,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:26:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:26:59,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:26:59,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923071727] [2020-07-21 11:26:59,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:26:59,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:26:59,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359574863] [2020-07-21 11:26:59,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:26:59,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:26:59,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:26:59,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:26:59,546 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-21 11:27:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:00,014 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-21 11:27:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:27:00,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-07-21 11:27:00,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:00,021 INFO L225 Difference]: With dead ends: 629 [2020-07-21 11:27:00,021 INFO L226 Difference]: Without dead ends: 318 [2020-07-21 11:27:00,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-21 11:27:00,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-21 11:27:00,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-21 11:27:00,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-21 11:27:00,050 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 156 [2020-07-21 11:27:00,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:00,051 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-21 11:27:00,051 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:00,051 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-21 11:27:00,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 11:27:00,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:00,055 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:00,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:00,271 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:00,271 INFO L82 PathProgramCache]: Analyzing trace with hash -798836375, now seen corresponding path program 1 times [2020-07-21 11:27:00,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:00,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619968049] [2020-07-21 11:27:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:00,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:27:00,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:00,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:00,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619968049] [2020-07-21 11:27:00,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:00,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:00,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714758758] [2020-07-21 11:27:00,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:00,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:00,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:00,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:00,444 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-21 11:27:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:01,325 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-21 11:27:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:01,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2020-07-21 11:27:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:01,332 INFO L225 Difference]: With dead ends: 923 [2020-07-21 11:27:01,333 INFO L226 Difference]: Without dead ends: 621 [2020-07-21 11:27:01,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:27:01,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-21 11:27:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 605. [2020-07-21 11:27:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-21 11:27:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 764 transitions. [2020-07-21 11:27:01,378 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 764 transitions. Word has length 163 [2020-07-21 11:27:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:01,379 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 764 transitions. [2020-07-21 11:27:01,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 764 transitions. [2020-07-21 11:27:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 11:27:01,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:01,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:01,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:01,598 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:01,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1395637775, now seen corresponding path program 1 times [2020-07-21 11:27:01,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:01,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925985143] [2020-07-21 11:27:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:01,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 11:27:01,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:01,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:01,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925985143] [2020-07-21 11:27:01,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:01,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:27:01,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581236101] [2020-07-21 11:27:01,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:27:01,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:01,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:27:01,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:27:01,772 INFO L87 Difference]: Start difference. First operand 605 states and 764 transitions. Second operand 5 states. [2020-07-21 11:27:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:02,553 INFO L93 Difference]: Finished difference Result 1682 states and 2209 transitions. [2020-07-21 11:27:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:02,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 11:27:02,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:02,560 INFO L225 Difference]: With dead ends: 1682 [2020-07-21 11:27:02,561 INFO L226 Difference]: Without dead ends: 1083 [2020-07-21 11:27:02,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:27:02,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-21 11:27:02,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 919. [2020-07-21 11:27:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 11:27:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1162 transitions. [2020-07-21 11:27:02,624 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1162 transitions. Word has length 167 [2020-07-21 11:27:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:02,626 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1162 transitions. [2020-07-21 11:27:02,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:27:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1162 transitions. [2020-07-21 11:27:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-21 11:27:02,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:02,633 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:02,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:02,847 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:02,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1820888792, now seen corresponding path program 1 times [2020-07-21 11:27:02,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:02,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277940605] [2020-07-21 11:27:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:02,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:02,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:03,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:27:03,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277940605] [2020-07-21 11:27:03,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:03,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 11:27:03,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183005392] [2020-07-21 11:27:03,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 11:27:03,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:03,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 11:27:03,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:27:03,104 INFO L87 Difference]: Start difference. First operand 919 states and 1162 transitions. Second operand 6 states. [2020-07-21 11:27:03,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:03,928 INFO L93 Difference]: Finished difference Result 1994 states and 2547 transitions. [2020-07-21 11:27:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:27:03,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-07-21 11:27:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:03,935 INFO L225 Difference]: With dead ends: 1994 [2020-07-21 11:27:03,935 INFO L226 Difference]: Without dead ends: 1081 [2020-07-21 11:27:03,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:03,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2020-07-21 11:27:03,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1075. [2020-07-21 11:27:03,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1075 states. [2020-07-21 11:27:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1322 transitions. [2020-07-21 11:27:04,001 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1322 transitions. Word has length 172 [2020-07-21 11:27:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:04,002 INFO L479 AbstractCegarLoop]: Abstraction has 1075 states and 1322 transitions. [2020-07-21 11:27:04,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 11:27:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1322 transitions. [2020-07-21 11:27:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-21 11:27:04,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:04,006 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:04,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:04,218 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:04,220 INFO L82 PathProgramCache]: Analyzing trace with hash -2090900128, now seen corresponding path program 1 times [2020-07-21 11:27:04,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:04,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612057301] [2020-07-21 11:27:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:04,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:04,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 11:27:04,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:04,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612057301] [2020-07-21 11:27:04,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:04,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:04,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717524315] [2020-07-21 11:27:04,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:04,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:04,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:04,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:04,371 INFO L87 Difference]: Start difference. First operand 1075 states and 1322 transitions. Second operand 3 states. [2020-07-21 11:27:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:04,862 INFO L93 Difference]: Finished difference Result 2588 states and 3274 transitions. [2020-07-21 11:27:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:04,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-07-21 11:27:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:04,872 INFO L225 Difference]: With dead ends: 2588 [2020-07-21 11:27:04,881 INFO L226 Difference]: Without dead ends: 1219 [2020-07-21 11:27:04,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-07-21 11:27:04,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1073. [2020-07-21 11:27:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2020-07-21 11:27:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1227 transitions. [2020-07-21 11:27:04,929 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1227 transitions. Word has length 176 [2020-07-21 11:27:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:04,930 INFO L479 AbstractCegarLoop]: Abstraction has 1073 states and 1227 transitions. [2020-07-21 11:27:04,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1227 transitions. [2020-07-21 11:27:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-07-21 11:27:04,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:04,936 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:27:05,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:05,151 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:05,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1859280077, now seen corresponding path program 1 times [2020-07-21 11:27:05,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:05,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944616674] [2020-07-21 11:27:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:05,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:05,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:27:05,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:27:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 11:27:05,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944616674] [2020-07-21 11:27:05,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:27:05,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:27:05,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353407338] [2020-07-21 11:27:05,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:27:05,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:05,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:27:05,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:27:05,456 INFO L87 Difference]: Start difference. First operand 1073 states and 1227 transitions. Second operand 7 states. [2020-07-21 11:27:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:06,214 INFO L93 Difference]: Finished difference Result 2444 states and 2851 transitions. [2020-07-21 11:27:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:27:06,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2020-07-21 11:27:06,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:06,224 INFO L225 Difference]: With dead ends: 2444 [2020-07-21 11:27:06,225 INFO L226 Difference]: Without dead ends: 1377 [2020-07-21 11:27:06,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:27:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-07-21 11:27:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1367. [2020-07-21 11:27:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-21 11:27:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1576 transitions. [2020-07-21 11:27:06,275 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1576 transitions. Word has length 233 [2020-07-21 11:27:06,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:06,276 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1576 transitions. [2020-07-21 11:27:06,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:27:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1576 transitions. [2020-07-21 11:27:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 11:27:06,283 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:27:06,284 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-21 11:27:06,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:06,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:27:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:27:06,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1544762519, now seen corresponding path program 1 times [2020-07-21 11:27:06,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:27:06,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758611416] [2020-07-21 11:27:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:27:06,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:27:06,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:27:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 11:27:06,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:27:06,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758611416] [2020-07-21 11:27:06,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:27:06,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:27:06,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636721295] [2020-07-21 11:27:06,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:27:06,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:27:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:27:06,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:06,658 INFO L87 Difference]: Start difference. First operand 1367 states and 1576 transitions. Second operand 3 states. [2020-07-21 11:27:07,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:27:07,076 INFO L93 Difference]: Finished difference Result 2727 states and 3154 transitions. [2020-07-21 11:27:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:27:07,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-07-21 11:27:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:27:07,080 INFO L225 Difference]: With dead ends: 2727 [2020-07-21 11:27:07,080 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:27:07,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:27:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:27:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:27:07,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:27:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:27:07,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 247 [2020-07-21 11:27:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:27:07,087 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:27:07,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:27:07,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:27:07,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:27:07,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:27:07,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:27:08,156 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2020-07-21 11:27:08,284 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-07-21 11:27:08,399 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-07-21 11:27:08,403 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,404 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 11:27:08,405 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:08,406 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 11:27:08,406 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 11:27:08,406 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,406 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,406 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 11:27:08,407 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 11:27:08,408 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,409 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 577) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 11:27:08,410 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,411 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 11:27:08,412 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,413 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 11:27:08,414 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,415 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 11:27:08,416 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 11:27:08,417 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,418 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 11:27:08,419 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 11:27:08,420 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,420 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,420 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,420 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (not (= 1 |old(~a19~0)|))) (.cse1 (<= 8 ~a17~0)) (.cse9 (<= ~a17~0 8)) (.cse6 (<= ~a17~0 |old(~a17~0)|)) (.cse8 (= ~a19~0 |old(~a19~0)|)) (.cse5 (not (<= |old(~a28~0)| 7))) (.cse7 (<= ~a28~0 |old(~a28~0)|)) (.cse2 (not (<= 8 |old(~a17~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse11 (not (<= 10 |old(~a28~0)|))) (.cse10 (<= 10 ~a28~0)) (.cse3 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse3 (and .cse6 .cse7 .cse8)) (or .cse4 .cse2 (and .cse7 .cse9 .cse1 .cse10 .cse8) .cse11 .cse3) (or (not (<= |old(~a28~0)| 8)) .cse2 (and .cse9 (<= ~a28~0 8) .cse8) .cse3) (or .cse0 (not (<= 9 |old(~a28~0)|)) (and .cse6 .cse7 .cse8 (<= 9 ~a28~0)) .cse3) (or .cse5 .cse7 .cse2 .cse3) (or .cse0 .cse11 .cse10 .cse3))) [2020-07-21 11:27:08,420 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,420 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 11:27:08,421 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 11:27:08,422 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 11:27:08,423 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 11:27:08,424 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 11:27:08,425 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 11:27:08,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:27:08,426 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 11:27:08,426 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:27:08,426 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:27:08,426 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-21 11:27:08,426 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= 8 ~a17~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 9 ~a28~0)) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:27:08,426 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:08,427 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 11:27:08,427 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= 8 ~a17~0)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 8))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 9 ~a28~0)) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a17~0)| 8)))) [2020-07-21 11:27:08,427 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 11:27:08,427 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 11:27:08,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:27:08 BoogieIcfgContainer [2020-07-21 11:27:08,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:27:08,453 INFO L168 Benchmark]: Toolchain (without parser) took 12912.61 ms. Allocated memory was 138.4 MB in the beginning and 415.8 MB in the end (delta: 277.3 MB). Free memory was 101.6 MB in the beginning and 253.2 MB in the end (delta: -151.6 MB). Peak memory consumption was 247.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,454 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.09 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 172.8 MB in the end (delta: -71.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,456 INFO L168 Benchmark]: Boogie Preprocessor took 107.94 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 167.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,457 INFO L168 Benchmark]: RCFGBuilder took 1254.90 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.8 MB in the beginning and 183.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,458 INFO L168 Benchmark]: TraceAbstraction took 10824.82 ms. Allocated memory was 238.0 MB in the beginning and 415.8 MB in the end (delta: 177.7 MB). Free memory was 183.6 MB in the beginning and 253.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 229.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:27:08,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.09 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 101.2 MB in the beginning and 172.8 MB in the end (delta: -71.6 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.94 ms. Allocated memory is still 205.5 MB. Free memory was 172.8 MB in the beginning and 167.8 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1254.90 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.8 MB in the beginning and 183.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10824.82 ms. Allocated memory was 238.0 MB in the beginning and 415.8 MB in the end (delta: 177.7 MB). Free memory was 183.6 MB in the beginning and 253.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 229.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 577]: 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: 606]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || ((a17 <= 8 && 8 <= a17) && a28 <= 8)) || !(\old(a28) <= 7)) || ((a17 <= 8 && a28 <= 10) && 9 <= a28)) || !(8 <= \old(a17))) || ((1 == a19 && a17 <= 8) && a28 <= 7)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.5s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 660 SDtfs, 2444 SDslu, 319 SDs, 0 SdLazy, 3839 SolverSat, 722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1867 GetRequests, 1831 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1367occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 352 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 55 PreInvPairs, 77 NumberOfFragments, 322 HoareAnnotationTreeSize, 55 FomulaSimplifications, 1782 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 976 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1455 NumberOfCodeBlocks, 1455 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1850 ConstructedInterpolants, 0 QuantifiedInterpolants, 614442 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3345 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 656/664 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...