/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:25:09,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:25:09,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:25:09,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:25:09,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:25:09,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:25:09,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:25:09,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:25:09,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:25:09,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:25:09,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:25:09,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:25:09,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:25:09,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:25:09,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:25:09,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:25:09,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:25:09,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:25:09,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:25:09,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:25:09,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:25:09,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:25:09,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:25:09,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:25:09,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:25:09,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:25:09,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:25:09,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:25:09,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 11:25:09,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:25:09,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:25:09,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:25:09,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:25:09,198 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:25:09,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:25:09,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:25:09,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:25:09,199 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:25:09,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:25:09,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:25:09,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:25:09,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:25:09,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:25:09,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:25:09,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:25:09,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:25:09,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:25:09,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:25:09,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:25:09,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:25:09,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:09,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:25:09,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:25:09,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 11:25:09,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:25:09,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:25:09,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:25:09,525 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:25:09,526 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:25:09,526 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-07-21 11:25:09,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e1f27cc/d91a3b3110e044d9abc6dff36c1a3acb/FLAG450855ebf [2020-07-21 11:25:10,202 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:25:10,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label22.c [2020-07-21 11:25:10,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e1f27cc/d91a3b3110e044d9abc6dff36c1a3acb/FLAG450855ebf [2020-07-21 11:25:10,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e1f27cc/d91a3b3110e044d9abc6dff36c1a3acb [2020-07-21 11:25:10,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:25:10,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:25:10,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:10,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:25:10,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:25:10,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:10" (1/1) ... [2020-07-21 11:25:10,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235b9204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:10, skipping insertion in model container [2020-07-21 11:25:10,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:10" (1/1) ... [2020-07-21 11:25:10,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:25:10,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:25:11,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:11,078 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:25:11,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:11,289 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:25:11,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11 WrapperNode [2020-07-21 11:25:11,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:11,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:25:11,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:25:11,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:25:11,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... [2020-07-21 11:25:11,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:25:11,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:25:11,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:25:11,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:25:11,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:25:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:25:11,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:25:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:25:11,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:25:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:25:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:25:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:25:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:25:11,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:25:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:25:11,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:25:12,715 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:25:12,716 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:25:12,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:12 BoogieIcfgContainer [2020-07-21 11:25:12,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:25:12,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:25:12,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:25:12,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:25:12,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:25:10" (1/3) ... [2020-07-21 11:25:12,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e9aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:12, skipping insertion in model container [2020-07-21 11:25:12,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:11" (2/3) ... [2020-07-21 11:25:12,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e9aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:12, skipping insertion in model container [2020-07-21 11:25:12,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:12" (3/3) ... [2020-07-21 11:25:12,738 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label22.c [2020-07-21 11:25:12,749 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:25:12,760 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:25:12,777 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:25:12,810 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:25:12,811 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:25:12,812 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:25:12,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:25:12,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:25:12,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:25:12,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:25:12,813 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:25:12,843 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:25:12,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:25:12,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:12,868 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] [2020-07-21 11:25:12,869 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash -185558457, now seen corresponding path program 1 times [2020-07-21 11:25:12,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:12,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353252854] [2020-07-21 11:25:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:13,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:13,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:13,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353252854] [2020-07-21 11:25:13,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:13,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:13,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564560765] [2020-07-21 11:25:13,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:13,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:13,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:13,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:13,253 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:25:14,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:14,254 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 11:25:14,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:14,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 11:25:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:14,293 INFO L225 Difference]: With dead ends: 572 [2020-07-21 11:25:14,293 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:25:14,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:14,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:25:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:25:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:25:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 11:25:14,432 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 133 [2020-07-21 11:25:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:14,436 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 11:25:14,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 11:25:14,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 11:25:14,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:14,451 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:14,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:14,653 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:14,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:14,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2009212688, now seen corresponding path program 1 times [2020-07-21 11:25:14,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:14,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845353296] [2020-07-21 11:25:14,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:14,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:14,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:14,936 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:14,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:14,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845353296] [2020-07-21 11:25:14,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:14,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:25:14,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296106408] [2020-07-21 11:25:14,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:25:14,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:14,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:25:14,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:25:14,943 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-21 11:25:15,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:15,801 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-21 11:25:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:25:15,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-07-21 11:25:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:15,810 INFO L225 Difference]: With dead ends: 842 [2020-07-21 11:25:15,811 INFO L226 Difference]: Without dead ends: 570 [2020-07-21 11:25:15,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:25:15,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-21 11:25:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-21 11:25:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-21 11:25:15,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 784 transitions. [2020-07-21 11:25:15,847 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 784 transitions. Word has length 143 [2020-07-21 11:25:15,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:15,848 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 784 transitions. [2020-07-21 11:25:15,848 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:25:15,848 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 784 transitions. [2020-07-21 11:25:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 11:25:15,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:15,852 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:25:16,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:16,067 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:16,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:16,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1632968183, now seen corresponding path program 1 times [2020-07-21 11:25:16,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:16,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818988311] [2020-07-21 11:25:16,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:16,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:16,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:16,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:16,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818988311] [2020-07-21 11:25:16,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:16,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 11:25:16,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358395685] [2020-07-21 11:25:16,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 11:25:16,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:16,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 11:25:16,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:25:16,374 INFO L87 Difference]: Start difference. First operand 556 states and 784 transitions. Second operand 8 states. [2020-07-21 11:25:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:18,393 INFO L93 Difference]: Finished difference Result 2270 states and 3383 transitions. [2020-07-21 11:25:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 11:25:18,396 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-07-21 11:25:18,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:18,416 INFO L225 Difference]: With dead ends: 2270 [2020-07-21 11:25:18,416 INFO L226 Difference]: Without dead ends: 1720 [2020-07-21 11:25:18,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 11:25:18,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-07-21 11:25:18,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1390. [2020-07-21 11:25:18,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2020-07-21 11:25:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1826 transitions. [2020-07-21 11:25:18,531 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1826 transitions. Word has length 163 [2020-07-21 11:25:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:18,531 INFO L479 AbstractCegarLoop]: Abstraction has 1390 states and 1826 transitions. [2020-07-21 11:25:18,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 11:25:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1826 transitions. [2020-07-21 11:25:18,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 11:25:18,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:18,545 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:25:18,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:18,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:18,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1231231418, now seen corresponding path program 1 times [2020-07-21 11:25:18,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:18,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260291754] [2020-07-21 11:25:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:18,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:18,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 11:25:18,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 54 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 11:25:19,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260291754] [2020-07-21 11:25:19,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:19,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:19,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110128103] [2020-07-21 11:25:19,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:19,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:19,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:19,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:19,065 INFO L87 Difference]: Start difference. First operand 1390 states and 1826 transitions. Second operand 7 states. [2020-07-21 11:25:20,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:20,597 INFO L93 Difference]: Finished difference Result 4669 states and 6466 transitions. [2020-07-21 11:25:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 11:25:20,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-07-21 11:25:20,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:20,626 INFO L225 Difference]: With dead ends: 4669 [2020-07-21 11:25:20,626 INFO L226 Difference]: Without dead ends: 3289 [2020-07-21 11:25:20,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 11:25:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2020-07-21 11:25:20,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 2925. [2020-07-21 11:25:20,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2020-07-21 11:25:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3785 transitions. [2020-07-21 11:25:20,758 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3785 transitions. Word has length 183 [2020-07-21 11:25:20,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:20,760 INFO L479 AbstractCegarLoop]: Abstraction has 2925 states and 3785 transitions. [2020-07-21 11:25:20,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3785 transitions. [2020-07-21 11:25:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 11:25:20,772 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:20,772 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 11:25:20,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:20,986 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:20,986 INFO L82 PathProgramCache]: Analyzing trace with hash -521993934, now seen corresponding path program 1 times [2020-07-21 11:25:20,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:20,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799542759] [2020-07-21 11:25:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:21,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:21,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 11:25:21,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:21,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799542759] [2020-07-21 11:25:21,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:21,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:21,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674402770] [2020-07-21 11:25:21,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:21,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:21,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:21,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:21,163 INFO L87 Difference]: Start difference. First operand 2925 states and 3785 transitions. Second operand 3 states. [2020-07-21 11:25:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:21,676 INFO L93 Difference]: Finished difference Result 5290 states and 6823 transitions. [2020-07-21 11:25:21,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:21,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-07-21 11:25:21,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:21,678 INFO L225 Difference]: With dead ends: 5290 [2020-07-21 11:25:21,678 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:25:21,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:25:21,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:25:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:25:21,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:25:21,689 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 187 [2020-07-21 11:25:21,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:21,689 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:25:21,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:25:21,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:25:21,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:21,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:25:22,626 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2020-07-21 11:25:22,769 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:22,770 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|)) [2020-07-21 11:25:22,770 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:22,776 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:25:22,776 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:25:22,776 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:25:22,777 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:25:22,778 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,779 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,780 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:25:22,780 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:25:22,780 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:25:22,780 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:25:22,780 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:25:22,782 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:25:22,783 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2020-07-21 11:25:22,784 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:25:22,784 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:25:22,784 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:25:22,786 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:25:22,788 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,788 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:25:22,789 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:25:22,790 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:25:22,791 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,791 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,791 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,791 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,791 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,793 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:25:22,793 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:25:22,793 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:25:22,793 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:25:22,793 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:25:22,794 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:25:22,794 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:25:22,794 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:25:22,794 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:25:22,797 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:25:22,797 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:25:22,797 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:25:22,797 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:25:22,797 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:25:22,798 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,799 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:25:22,800 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:25:22,801 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,802 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,803 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:25:22,803 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,804 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,805 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,805 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,805 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,805 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:25:22,805 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:25:22,806 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:25:22,806 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:25:22,806 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:25:22,806 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:25:22,807 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:25:22,807 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:25:22,807 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:25:22,807 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:25:22,808 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse7 (not (<= |old(~a8~0)| 13))) (.cse3 (not (<= |old(~a16~0)| 5)))) (let ((.cse0 (<= 5 ~a16~0)) (.cse2 (not (<= 5 |old(~a16~0)|))) (.cse5 (not (<= |old(~a7~0)| 0))) (.cse6 (<= ~a7~0 0)) (.cse1 (and .cse7 (or .cse3 (not (< |old(~a8~0)| 15))))) (.cse4 (not (<= 15 |old(~a8~0)|))) (.cse8 (<= ~a8~0 |old(~a8~0)|)) (.cse9 (<= ~a16~0 |old(~a16~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse5 .cse0 .cse2) (or .cse4 .cse6 .cse5) (or (and (or .cse5 .cse3) (or .cse5 .cse7)) .cse6) (or (and .cse8 .cse9) .cse1) (or .cse4 (and .cse8 .cse9 (<= 15 ~a8~0)))))) [2020-07-21 11:25:22,808 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,809 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:25:22,810 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:25:22,810 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:25:22,810 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:25:22,810 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:25:22,810 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:25:22,815 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:25:22,816 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:25:22,816 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:25:22,816 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,819 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:25:22,820 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:25:22,821 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:25:22,822 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:25:22,822 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:25:22,822 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:25:22,822 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,822 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,823 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,823 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,823 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,823 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:25:22,824 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:25:22,825 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:25:22,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:22,825 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0)) [2020-07-21 11:25:22,825 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:25:22,825 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:22,825 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= ~a7~0 0) (<= 15 ~a8~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5))) [2020-07-21 11:25:22,826 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:22,826 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (<= 15 ~a8~0)) [2020-07-21 11:25:22,826 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:25:22,826 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:25:22,827 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (<= ~a16~0 5) (not (<= |old(~a16~0)| 5)) (<= 15 ~a8~0)) [2020-07-21 11:25:22,827 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:22,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:25:22 BoogieIcfgContainer [2020-07-21 11:25:22,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:25:22,855 INFO L168 Benchmark]: Toolchain (without parser) took 12395.53 ms. Allocated memory was 138.9 MB in the beginning and 374.9 MB in the end (delta: 235.9 MB). Free memory was 102.0 MB in the beginning and 306.2 MB in the end (delta: -204.2 MB). Peak memory consumption was 253.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,856 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.57 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.6 MB in the beginning and 171.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,863 INFO L168 Benchmark]: Boogie Preprocessor took 106.93 ms. Allocated memory is still 205.0 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,864 INFO L168 Benchmark]: RCFGBuilder took 1329.76 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 181.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,865 INFO L168 Benchmark]: TraceAbstraction took 10122.02 ms. Allocated memory was 239.1 MB in the beginning and 374.9 MB in the end (delta: 135.8 MB). Free memory was 180.2 MB in the beginning and 306.2 MB in the end (delta: -126.0 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:22,877 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.57 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.6 MB in the beginning and 171.3 MB in the end (delta: -69.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.93 ms. Allocated memory is still 205.0 MB. Free memory was 171.3 MB in the beginning and 166.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1329.76 ms. Allocated memory was 205.0 MB in the beginning and 239.1 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 181.6 MB in the end (delta: -15.2 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10122.02 ms. Allocated memory was 239.1 MB in the beginning and 374.9 MB in the end (delta: 135.8 MB). Free memory was 180.2 MB in the beginning and 306.2 MB in the end (delta: -126.0 MB). Peak memory consumption was 231.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((a8 <= 13 || !(15 <= \old(a8))) || !(\old(a7) <= 0)) || a16 <= 5) || !(\old(a16) <= 5)) || 15 <= a8 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 190 SDtfs, 2068 SDslu, 186 SDs, 0 SdLazy, 4218 SolverSat, 805 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1165 GetRequests, 1139 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2925occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 708 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 62 PreInvPairs, 106 NumberOfFragments, 211 HoareAnnotationTreeSize, 62 FomulaSimplifications, 4137 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 648 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1148 ConstructedInterpolants, 0 QuantifiedInterpolants, 327912 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2188 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 310/335 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...