/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:10:35,663 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:10:35,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:10:35,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:10:35,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:10:35,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:10:35,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:10:35,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:10:35,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:10:35,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:10:35,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:10:35,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:10:35,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:10:35,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:10:35,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:10:35,714 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 20:10:35,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:10:35,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:10:35,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:10:35,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:10:35,737 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:10:35,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:10:35,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:10:35,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:10:35,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:10:35,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:10:35,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:10:35,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:10:35,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:10:35,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:10:35,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:10:35,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:10:35,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:10:35,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:10:35,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:10:35,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:10:35,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:10:35,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:10:35,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:10:35,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:10:35,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:10:35,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:10:35,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:35,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:10:35,743 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:10:35,743 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:10:36,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:10:36,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:10:36,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:10:36,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:10:36,076 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:10:36,077 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-21 20:10:36,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931210477/71a0abef818d46199641f84d24b418a2/FLAG3eb6873ba [2020-07-21 20:10:36,761 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:10:36,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label53.c [2020-07-21 20:10:36,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931210477/71a0abef818d46199641f84d24b418a2/FLAG3eb6873ba [2020-07-21 20:10:37,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931210477/71a0abef818d46199641f84d24b418a2 [2020-07-21 20:10:37,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:10:37,038 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:10:37,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:37,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:10:37,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:10:37,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38342db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37, skipping insertion in model container [2020-07-21 20:10:37,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:10:37,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:10:37,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:37,686 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:10:37,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:37,806 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:10:37,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37 WrapperNode [2020-07-21 20:10:37,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:37,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:10:37,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:10:37,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:10:37,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (1/1) ... [2020-07-21 20:10:37,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:10:37,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:10:37,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:10:37,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:10:37,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (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 20:10:37,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:10:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:10:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:10:37,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:10:37,996 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:10:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:10:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:10:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:10:37,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:10:37,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:10:37,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:10:39,182 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:10:39,183 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:10:39,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:39 BoogieIcfgContainer [2020-07-21 20:10:39,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:10:39,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:10:39,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:10:39,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:10:39,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:10:37" (1/3) ... [2020-07-21 20:10:39,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:39, skipping insertion in model container [2020-07-21 20:10:39,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:37" (2/3) ... [2020-07-21 20:10:39,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:39, skipping insertion in model container [2020-07-21 20:10:39,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:39" (3/3) ... [2020-07-21 20:10:39,206 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-07-21 20:10:39,218 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:10:39,228 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:10:39,242 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:10:39,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:10:39,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:10:39,276 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:10:39,276 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:10:39,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:10:39,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:10:39,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:10:39,277 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:10:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:10:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 20:10:39,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:39,319 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, 1, 1, 1] [2020-07-21 20:10:39,319 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:39,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:39,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1422395146, now seen corresponding path program 1 times [2020-07-21 20:10:39,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:39,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806475468] [2020-07-21 20:10:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:39,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:39,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:39,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:10:39,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:39,665 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 20:10:39,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:39,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806475468] [2020-07-21 20:10:39,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:39,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:39,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219113160] [2020-07-21 20:10:39,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:39,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:39,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:39,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:39,694 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:10:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:40,628 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 20:10:40,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:40,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-21 20:10:40,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:40,648 INFO L225 Difference]: With dead ends: 619 [2020-07-21 20:10:40,648 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 20:10:40,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 20:10:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 20:10:40,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 20:10:40,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 20:10:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 20:10:40,727 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 144 [2020-07-21 20:10:40,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:40,729 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 20:10:40,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 20:10:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 20:10:40,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:40,735 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:40,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:40,950 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:40,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:40,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1282323431, now seen corresponding path program 1 times [2020-07-21 20:10:40,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:40,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742694175] [2020-07-21 20:10:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:41,060 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:41,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:41,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:41,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:41,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:41,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742694175] [2020-07-21 20:10:41,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:41,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:41,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069239484] [2020-07-21 20:10:41,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:41,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:41,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:41,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:41,155 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 20:10:41,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:41,725 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 20:10:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:41,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-21 20:10:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:41,733 INFO L225 Difference]: With dead ends: 782 [2020-07-21 20:10:41,733 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 20:10:41,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 20:10:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 20:10:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 20:10:41,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 20:10:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 20:10:41,771 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 153 [2020-07-21 20:10:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:41,772 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 20:10:41,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 20:10:41,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-21 20:10:41,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:41,779 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:41,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:41,992 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:41,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:41,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1533530607, now seen corresponding path program 1 times [2020-07-21 20:10:41,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:41,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734474601] [2020-07-21 20:10:41,995 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:42,122 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:42,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:42,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:42,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:42,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:42,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734474601] [2020-07-21 20:10:42,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:42,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:42,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623774436] [2020-07-21 20:10:42,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:42,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:42,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:42,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:42,182 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 3 states. [2020-07-21 20:10:42,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:42,808 INFO L93 Difference]: Finished difference Result 1076 states and 1425 transitions. [2020-07-21 20:10:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:42,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-07-21 20:10:42,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:42,818 INFO L225 Difference]: With dead ends: 1076 [2020-07-21 20:10:42,818 INFO L226 Difference]: Without dead ends: 613 [2020-07-21 20:10:42,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 20:10:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-07-21 20:10:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611. [2020-07-21 20:10:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-21 20:10:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 782 transitions. [2020-07-21 20:10:42,872 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 782 transitions. Word has length 165 [2020-07-21 20:10:42,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:42,872 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 782 transitions. [2020-07-21 20:10:42,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:42,873 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 782 transitions. [2020-07-21 20:10:42,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 20:10:42,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:42,879 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:43,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:43,095 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:43,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:43,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2077268524, now seen corresponding path program 1 times [2020-07-21 20:10:43,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:43,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278005208] [2020-07-21 20:10:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:43,246 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:43,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:43,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:10:43,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:43,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:43,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278005208] [2020-07-21 20:10:43,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:43,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:43,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967460226] [2020-07-21 20:10:43,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:43,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:43,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:43,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:43,442 INFO L87 Difference]: Start difference. First operand 611 states and 782 transitions. Second operand 7 states. [2020-07-21 20:10:45,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:45,105 INFO L93 Difference]: Finished difference Result 2428 states and 3294 transitions. [2020-07-21 20:10:45,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:10:45,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2020-07-21 20:10:45,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:45,126 INFO L225 Difference]: With dead ends: 2428 [2020-07-21 20:10:45,126 INFO L226 Difference]: Without dead ends: 1823 [2020-07-21 20:10:45,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2020-07-21 20:10:45,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1815. [2020-07-21 20:10:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2020-07-21 20:10:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2289 transitions. [2020-07-21 20:10:45,246 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2289 transitions. Word has length 173 [2020-07-21 20:10:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:45,247 INFO L479 AbstractCegarLoop]: Abstraction has 1815 states and 2289 transitions. [2020-07-21 20:10:45,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2289 transitions. [2020-07-21 20:10:45,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-21 20:10:45,261 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:45,262 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:10:45,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:45,472 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:45,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1776591340, now seen corresponding path program 1 times [2020-07-21 20:10:45,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:45,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159055737] [2020-07-21 20:10:45,473 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:45,591 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:45,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:45,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:10:45,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 20:10:45,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:45,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159055737] [2020-07-21 20:10:45,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:45,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:10:45,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902116492] [2020-07-21 20:10:45,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:10:45,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:45,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:10:45,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:45,711 INFO L87 Difference]: Start difference. First operand 1815 states and 2289 transitions. Second operand 5 states. [2020-07-21 20:10:46,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:46,515 INFO L93 Difference]: Finished difference Result 3612 states and 4501 transitions. [2020-07-21 20:10:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:46,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2020-07-21 20:10:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:46,526 INFO L225 Difference]: With dead ends: 3612 [2020-07-21 20:10:46,526 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 20:10:46,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 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 20:10:46,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 20:10:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1787. [2020-07-21 20:10:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1787 states. [2020-07-21 20:10:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2102 transitions. [2020-07-21 20:10:46,595 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2102 transitions. Word has length 203 [2020-07-21 20:10:46,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:46,595 INFO L479 AbstractCegarLoop]: Abstraction has 1787 states and 2102 transitions. [2020-07-21 20:10:46,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:10:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2102 transitions. [2020-07-21 20:10:46,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-07-21 20:10:46,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:46,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:46,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:46,819 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:46,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:46,819 INFO L82 PathProgramCache]: Analyzing trace with hash -827632200, now seen corresponding path program 1 times [2020-07-21 20:10:46,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:46,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361886680] [2020-07-21 20:10:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:46,924 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:46,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:46,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:46,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:47,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:47,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361886680] [2020-07-21 20:10:47,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:47,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:47,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476252817] [2020-07-21 20:10:47,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:47,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:47,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:47,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:47,021 INFO L87 Difference]: Start difference. First operand 1787 states and 2102 transitions. Second operand 3 states. [2020-07-21 20:10:47,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:47,605 INFO L93 Difference]: Finished difference Result 4586 states and 5392 transitions. [2020-07-21 20:10:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:47,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-07-21 20:10:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:47,615 INFO L225 Difference]: With dead ends: 4586 [2020-07-21 20:10:47,615 INFO L226 Difference]: Without dead ends: 1781 [2020-07-21 20:10:47,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 20:10:47,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2020-07-21 20:10:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2020-07-21 20:10:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2020-07-21 20:10:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2045 transitions. [2020-07-21 20:10:47,671 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2045 transitions. Word has length 202 [2020-07-21 20:10:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:47,671 INFO L479 AbstractCegarLoop]: Abstraction has 1779 states and 2045 transitions. [2020-07-21 20:10:47,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:47,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2045 transitions. [2020-07-21 20:10:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-21 20:10:47,678 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:47,679 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, 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] [2020-07-21 20:10:47,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:47,895 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:47,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:47,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1099879088, now seen corresponding path program 1 times [2020-07-21 20:10:47,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:47,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287540682] [2020-07-21 20:10:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:48,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:48,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:48,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:48,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:48,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:48,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287540682] [2020-07-21 20:10:48,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:48,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:48,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129793595] [2020-07-21 20:10:48,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:48,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:48,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:48,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:48,185 INFO L87 Difference]: Start difference. First operand 1779 states and 2045 transitions. Second operand 6 states. [2020-07-21 20:10:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:48,668 INFO L93 Difference]: Finished difference Result 3544 states and 4094 transitions. [2020-07-21 20:10:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:10:48,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-21 20:10:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:48,678 INFO L225 Difference]: With dead ends: 3544 [2020-07-21 20:10:48,678 INFO L226 Difference]: Without dead ends: 1771 [2020-07-21 20:10:48,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2020-07-21 20:10:48,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1771. [2020-07-21 20:10:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1771 states. [2020-07-21 20:10:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 1991 transitions. [2020-07-21 20:10:48,737 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 1991 transitions. Word has length 211 [2020-07-21 20:10:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:48,738 INFO L479 AbstractCegarLoop]: Abstraction has 1771 states and 1991 transitions. [2020-07-21 20:10:48,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 1991 transitions. [2020-07-21 20:10:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-21 20:10:48,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:48,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:48,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:48,960 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:48,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:48,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1953919326, now seen corresponding path program 1 times [2020-07-21 20:10:48,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:48,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206560815] [2020-07-21 20:10:48,961 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 20:10:49,069 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:49,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:49,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:49,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 20:10:49,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:49,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206560815] [2020-07-21 20:10:49,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:49,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:49,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331579326] [2020-07-21 20:10:49,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:49,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:49,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:49,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:49,133 INFO L87 Difference]: Start difference. First operand 1771 states and 1991 transitions. Second operand 3 states. [2020-07-21 20:10:49,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:49,644 INFO L93 Difference]: Finished difference Result 4558 states and 5169 transitions. [2020-07-21 20:10:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:49,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-21 20:10:49,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:49,677 INFO L225 Difference]: With dead ends: 4558 [2020-07-21 20:10:49,677 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:10:49,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 222 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 20:10:49,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:10:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:10:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:10:49,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:10:49,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 224 [2020-07-21 20:10:49,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:49,686 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:10:49,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:49,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:10:49,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:10:49,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:49,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:10:50,701 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2020-07-21 20:10:50,854 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-07-21 20:10:50,995 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2020-07-21 20:10:50,999 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:50,999 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-21 20:10:50,999 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:10:51,000 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:10:51,001 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,002 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:10:51,003 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:10:51,004 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,005 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 586) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:10:51,006 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,007 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:10:51,008 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:10:51,009 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:10:51,010 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:10:51,011 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,012 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,013 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:10:51,014 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,015 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:10:51,016 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,017 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:10:51,018 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:10:51,019 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse3 (<= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (and .cse3 .cse4)) (.cse1 (not (<= 10 |old(~a28~0)|))) (.cse2 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2) (or (and .cse3 (<= ~a25~0 0) .cse4) (not (<= |old(~a25~0)| 0)) .cse2) (or (not (= 1 |old(~a19~0)|)) .cse0 .cse2) (or (and .cse3 (<= ~a28~0 8) .cse4) (not (<= |old(~a28~0)| 8)) .cse2) (or .cse1 (<= 10 ~a28~0) .cse2) (or (and (<= ~a17~0 7) .cse4) (not (<= |old(~a17~0)| 7))) (or (not (<= |old(~a28~0)| 7)) .cse2 (<= ~a28~0 7))))) [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,020 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:10:51,021 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,022 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:10:51,023 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:10:51,024 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:10:51,025 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:10:51,026 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:10:51,027 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:51,028 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 20:10:51,028 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:10:51,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:51,028 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|) (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= |old(~a17~0)| 8))) [2020-07-21 20:10:51,028 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 8)) (.cse3 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a25~0 0)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse0) (not (<= |old(~a17~0)| 8)) (and .cse3 .cse1) (and .cse0 .cse2) (and .cse3 (not .cse4)))) [2020-07-21 20:10:51,028 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:51,028 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:51,029 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (<= 10 ~a28~0)) (.cse0 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 8)) (.cse3 (<= ~a17~0 7)) (.cse4 (= 1 ~a19~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a25~0 0)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse0) (not (<= |old(~a17~0)| 8)) (and .cse3 .cse1) (and .cse0 .cse2) (and .cse3 (not .cse4)))) [2020-07-21 20:10:51,029 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:10:51,029 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:10:51,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:10:51 BoogieIcfgContainer [2020-07-21 20:10:51,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:10:51,054 INFO L168 Benchmark]: Toolchain (without parser) took 14018.08 ms. Allocated memory was 136.8 MB in the beginning and 471.3 MB in the end (delta: 334.5 MB). Free memory was 100.1 MB in the beginning and 288.1 MB in the end (delta: -188.0 MB). Peak memory consumption was 146.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,055 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.84 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 99.6 MB in the beginning and 169.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,057 INFO L168 Benchmark]: Boogie Preprocessor took 98.65 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,058 INFO L168 Benchmark]: RCFGBuilder took 1286.94 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 164.4 MB in the beginning and 180.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,059 INFO L168 Benchmark]: TraceAbstraction took 11855.20 ms. Allocated memory was 232.8 MB in the beginning and 471.3 MB in the end (delta: 238.6 MB). Free memory was 178.6 MB in the beginning and 288.1 MB in the end (delta: -109.5 MB). Peak memory consumption was 129.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:51,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 768.84 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 99.6 MB in the beginning and 169.5 MB in the end (delta: -69.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.65 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1286.94 ms. Allocated memory was 202.4 MB in the beginning and 232.8 MB in the end (delta: 30.4 MB). Free memory was 164.4 MB in the beginning and 180.1 MB in the end (delta: -15.6 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11855.20 ms. Allocated memory was 232.8 MB in the beginning and 471.3 MB in the end (delta: 238.6 MB). Free memory was 178.6 MB in the beginning and 288.1 MB in the end (delta: -109.5 MB). Peak memory consumption was 129.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 586]: 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)) || (a17 <= \old(a17) && a25 <= 0)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || (a17 <= \old(a17) && 10 <= a28)) || (a28 <= 8 && a17 <= 7)) || (1 == a19 && a17 <= \old(a17))) || !(\old(a17) <= 8)) || (a17 <= 7 && 10 <= a28)) || (a17 <= \old(a17) && a28 <= 8)) || (a17 <= 7 && !(1 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.6s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 979 SDtfs, 1723 SDslu, 334 SDs, 0 SdLazy, 4351 SolverSat, 724 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1860 GetRequests, 1835 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1815occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 98 PreInvPairs, 150 NumberOfFragments, 292 HoareAnnotationTreeSize, 98 FomulaSimplifications, 522 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 802 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1475 NumberOfCodeBlocks, 1475 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1849 ConstructedInterpolants, 0 QuantifiedInterpolants, 677777 SizeOfPredicates, 12 NumberOfNonLiveVariables, 3299 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 501/509 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...