/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_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:33:31,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:33:31,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:33:31,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:33:31,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:33:31,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:33:31,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:33:31,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:33:31,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:33:31,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:33:31,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:33:31,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:33:31,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:33:31,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:33:31,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:33:31,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:33:31,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:33:31,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:33:31,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:33:31,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:33:31,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:33:31,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:33:31,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:33:31,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:33:31,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 11:33:31,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:33:31,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:33:31,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:33:31,093 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 [2020-07-20 11:33:31,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:33:31,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:33:31,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:33:31,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:33:31,120 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:33:31,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:33:31,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:33:31,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:33:31,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:33:31,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:33:31,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:33:31,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:33:31,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:33:31,123 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:33:31,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:33:31,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:33:31,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:33:31,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:33:31,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:33:31,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:33:31,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:33:31,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:33:31,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:33:31,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:33:31,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:33:31,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:33:31,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:31,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:33:31,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:33:31,126 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 [2020-07-20 11:33:31,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:33:31,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:33:31,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:33:31,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:33:31,428 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:33:31,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-20 11:33:31,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c52d405/9cb5d03e7beb4870a2de40626a934aee/FLAGc46aa5c9f [2020-07-20 11:33:32,075 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:33:32,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-20 11:33:32,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c52d405/9cb5d03e7beb4870a2de40626a934aee/FLAGc46aa5c9f [2020-07-20 11:33:32,405 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c52d405/9cb5d03e7beb4870a2de40626a934aee [2020-07-20 11:33:32,413 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:33:32,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:33:32,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:33:32,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:33:32,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:33:32,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:33:32" (1/1) ... [2020-07-20 11:33:32,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b006d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:32, skipping insertion in model container [2020-07-20 11:33:32,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:33:32" (1/1) ... [2020-07-20 11:33:32,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:33:32,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:33:32,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:33:32,969 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:33:33,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:33:33,119 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:33:33,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33 WrapperNode [2020-07-20 11:33:33,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:33:33,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:33:33,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:33:33,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:33:33,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (1/1) ... [2020-07-20 11:33:33,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:33:33,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:33:33,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:33:33,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:33:33,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (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 [2020-07-20 11:33:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:33:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:33:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:33:33,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:33:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:33:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:33:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:33:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:33:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:33:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:33:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:33:34,456 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:33:34,456 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:33:34,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:33:34 BoogieIcfgContainer [2020-07-20 11:33:34,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:33:34,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:33:34,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:33:34,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:33:34,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:33:32" (1/3) ... [2020-07-20 11:33:34,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cc5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:33:34, skipping insertion in model container [2020-07-20 11:33:34,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:33" (2/3) ... [2020-07-20 11:33:34,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8cc5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:33:34, skipping insertion in model container [2020-07-20 11:33:34,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:33:34" (3/3) ... [2020-07-20 11:33:34,472 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2020-07-20 11:33:34,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:33:34,492 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:33:34,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:33:34,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:33:34,540 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:33:34,540 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:33:34,540 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:33:34,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:33:34,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:33:34,543 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:33:34,543 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:33:34,568 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 11:33:34,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 11:33:34,590 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:34,592 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] [2020-07-20 11:33:34,592 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:34,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2059241649, now seen corresponding path program 1 times [2020-07-20 11:33:34,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:34,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1771788274] [2020-07-20 11:33:34,610 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 [2020-07-20 11:33:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:34,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:34,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:34,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:34,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1771788274] [2020-07-20 11:33:34,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:34,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:33:34,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720039624] [2020-07-20 11:33:34,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:33:34,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:34,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:33:34,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:34,979 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 11:33:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:35,889 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 11:33:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:33:35,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-20 11:33:35,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:35,908 INFO L225 Difference]: With dead ends: 572 [2020-07-20 11:33:35,909 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 11:33:35,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 11:33:35,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 11:33:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 11:33:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 11:33:35,985 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 111 [2020-07-20 11:33:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:35,986 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 11:33:35,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:33:35,987 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 11:33:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-20 11:33:35,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:35,991 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] [2020-07-20 11:33:36,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:36,206 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:36,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:36,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1625964328, now seen corresponding path program 1 times [2020-07-20 11:33:36,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:36,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919918481] [2020-07-20 11:33:36,208 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 [2020-07-20 11:33:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:36,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:36,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:36,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:36,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919918481] [2020-07-20 11:33:36,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:36,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:33:36,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478788123] [2020-07-20 11:33:36,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:33:36,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:36,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:33:36,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:33:36,376 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 5 states. [2020-07-20 11:33:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:37,257 INFO L93 Difference]: Finished difference Result 842 states and 1218 transitions. [2020-07-20 11:33:37,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:33:37,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-07-20 11:33:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:37,267 INFO L225 Difference]: With dead ends: 842 [2020-07-20 11:33:37,268 INFO L226 Difference]: Without dead ends: 570 [2020-07-20 11:33:37,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:33:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-07-20 11:33:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 556. [2020-07-20 11:33:37,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-07-20 11:33:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 784 transitions. [2020-07-20 11:33:37,310 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 784 transitions. Word has length 121 [2020-07-20 11:33:37,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:37,311 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 784 transitions. [2020-07-20 11:33:37,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:33:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 784 transitions. [2020-07-20 11:33:37,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 11:33:37,315 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:37,315 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] [2020-07-20 11:33:37,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:37,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:37,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:37,531 INFO L82 PathProgramCache]: Analyzing trace with hash -530260225, now seen corresponding path program 1 times [2020-07-20 11:33:37,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:37,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304344572] [2020-07-20 11:33:37,532 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 [2020-07-20 11:33:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:37,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:33:37,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:37,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:33:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:37,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304344572] [2020-07-20 11:33:37,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:33:37,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 11:33:37,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381547819] [2020-07-20 11:33:37,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 11:33:37,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:37,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 11:33:37,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:33:37,788 INFO L87 Difference]: Start difference. First operand 556 states and 784 transitions. Second operand 8 states. [2020-07-20 11:33:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:39,820 INFO L93 Difference]: Finished difference Result 2270 states and 3383 transitions. [2020-07-20 11:33:39,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 11:33:39,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-07-20 11:33:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:39,846 INFO L225 Difference]: With dead ends: 2270 [2020-07-20 11:33:39,847 INFO L226 Difference]: Without dead ends: 1720 [2020-07-20 11:33:39,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-20 11:33:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2020-07-20 11:33:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1390. [2020-07-20 11:33:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2020-07-20 11:33:39,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1826 transitions. [2020-07-20 11:33:39,944 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1826 transitions. Word has length 141 [2020-07-20 11:33:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:39,945 INFO L479 AbstractCegarLoop]: Abstraction has 1390 states and 1826 transitions. [2020-07-20 11:33:39,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 11:33:39,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1826 transitions. [2020-07-20 11:33:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-20 11:33:39,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:39,955 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] [2020-07-20 11:33:40,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:40,170 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:40,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:40,170 INFO L82 PathProgramCache]: Analyzing trace with hash -924709118, now seen corresponding path program 1 times [2020-07-20 11:33:40,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:40,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212942625] [2020-07-20 11:33:40,171 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 [2020-07-20 11:33:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:40,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:33:40,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 11:33:40,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:33:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 54 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 11:33:40,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212942625] [2020-07-20 11:33:40,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:33:40,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:33:40,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835930338] [2020-07-20 11:33:40,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:33:40,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:40,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:33:40,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:33:40,439 INFO L87 Difference]: Start difference. First operand 1390 states and 1826 transitions. Second operand 7 states. [2020-07-20 11:33:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:42,189 INFO L93 Difference]: Finished difference Result 4669 states and 6466 transitions. [2020-07-20 11:33:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:33:42,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-20 11:33:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:42,214 INFO L225 Difference]: With dead ends: 4669 [2020-07-20 11:33:42,214 INFO L226 Difference]: Without dead ends: 3289 [2020-07-20 11:33:42,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:33:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2020-07-20 11:33:42,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 2925. [2020-07-20 11:33:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2020-07-20 11:33:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3785 transitions. [2020-07-20 11:33:42,343 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3785 transitions. Word has length 161 [2020-07-20 11:33:42,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:42,344 INFO L479 AbstractCegarLoop]: Abstraction has 2925 states and 3785 transitions. [2020-07-20 11:33:42,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:33:42,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3785 transitions. [2020-07-20 11:33:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 11:33:42,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:42,355 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] [2020-07-20 11:33:42,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:42,569 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1619320954, now seen corresponding path program 1 times [2020-07-20 11:33:42,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:42,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35853858] [2020-07-20 11:33:42,570 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 [2020-07-20 11:33:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:42,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:33:42,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 11:33:42,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:33:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 11:33:42,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35853858] [2020-07-20 11:33:42,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:33:42,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:33:42,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809598448] [2020-07-20 11:33:42,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:33:42,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:42,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:33:42,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:33:42,792 INFO L87 Difference]: Start difference. First operand 2925 states and 3785 transitions. Second operand 7 states. [2020-07-20 11:33:44,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:44,140 INFO L93 Difference]: Finished difference Result 5334 states and 6893 transitions. [2020-07-20 11:33:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 11:33:44,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-07-20 11:33:44,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:44,142 INFO L225 Difference]: With dead ends: 5334 [2020-07-20 11:33:44,142 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:33:44,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:33:44,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:33:44,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:33:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:33:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:33:44,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 165 [2020-07-20 11:33:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:44,154 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:33:44,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:33:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:33:44,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:33:44,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:44,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:33:45,294 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 45 [2020-07-20 11:33:45,378 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:33:45,378 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)|) (= ~a7~0 |old(~a7~0)|)) [2020-07-20 11:33:45,378 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:33:45,379 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 11:33:45,379 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 11:33:45,379 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,379 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,379 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 11:33:45,380 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 11:33:45,381 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,382 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 11:33:45,383 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 11:33:45,384 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 11:33:45,384 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 11:33:45,384 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 11:33:45,384 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2020-07-20 11:33:45,384 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,385 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 11:33:45,386 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,387 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 11:33:45,388 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,389 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 11:33:45,390 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,391 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 11:33:45,392 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 11:33:45,393 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,394 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 11:33:45,395 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 11:33:45,396 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 11:33:45,397 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 11:33:45,398 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse3 (= 1 ~a7~0)) (.cse2 (<= ~a8~0 |old(~a8~0)|)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse0 (not (= 1 |old(~a7~0)|))) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse5 (<= 5 ~a16~0)) (.cse6 (not (<= 5 |old(~a16~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 (<= ~a16~0 5))) (or (and .cse2 .cse4 .cse3 .cse5) .cse0 (not (<= |old(~a8~0)| 13)) .cse6) (or .cse7 (and .cse2 .cse4 (= ~a7~0 |old(~a7~0)|))) (or .cse7 .cse5 .cse6) (or .cse4 .cse0 (not (<= |old(~a16~0)| 4))) (or (not (<= 15 |old(~a8~0)|)) .cse7 (<= 15 ~a8~0)) (or .cse0 .cse1 .cse5 .cse6))) [2020-07-20 11:33:45,398 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 11:33:45,398 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,398 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,398 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,398 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 11:33:45,399 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 11:33:45,400 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,401 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 11:33:45,402 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 11:33:45,403 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 11:33:45,404 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 11:33:45,405 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 11:33:45,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:33:45,406 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5)) [2020-07-20 11:33:45,406 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:33:45,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:33:45,406 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|))) [2020-07-20 11:33:45,406 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:33:45,407 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (<= ~a16~0 5)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0))) [2020-07-20 11:33:45,407 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 11:33:45,407 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 11:33:45,407 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0))) (or (and .cse0 (<= ~a16~0 5)) (<= ~a7~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a8~0 13) .cse0))) [2020-07-20 11:33:45,407 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:33:45,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:33:45 BoogieIcfgContainer [2020-07-20 11:33:45,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:33:45,428 INFO L168 Benchmark]: Toolchain (without parser) took 13013.13 ms. Allocated memory was 146.8 MB in the beginning and 392.2 MB in the end (delta: 245.4 MB). Free memory was 101.2 MB in the beginning and 298.3 MB in the end (delta: -197.1 MB). Peak memory consumption was 216.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,429 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.89 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 100.8 MB in the beginning and 172.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,431 INFO L168 Benchmark]: Boogie Preprocessor took 107.31 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,432 INFO L168 Benchmark]: RCFGBuilder took 1234.99 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.2 MB in the beginning and 178.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,433 INFO L168 Benchmark]: TraceAbstraction took 10962.11 ms. Allocated memory was 237.5 MB in the beginning and 392.2 MB in the end (delta: 154.7 MB). Free memory was 176.9 MB in the beginning and 298.3 MB in the end (delta: -121.4 MB). Peak memory consumption was 201.1 MB. Max. memory is 7.1 GB. [2020-07-20 11:33:45,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.8 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.89 ms. Allocated memory was 146.8 MB in the beginning and 206.6 MB in the end (delta: 59.8 MB). Free memory was 100.8 MB in the beginning and 172.5 MB in the end (delta: -71.8 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.31 ms. Allocated memory is still 206.6 MB. Free memory was 172.5 MB in the beginning and 167.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1234.99 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.2 MB in the beginning and 178.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10962.11 ms. Allocated memory was 237.5 MB in the beginning and 392.2 MB in the end (delta: 154.7 MB). Free memory was 176.9 MB in the beginning and 298.3 MB in the end (delta: -121.4 MB). Peak memory consumption was 201.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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: ((((1 == a7 && a16 <= 5) || a7 <= 0) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || (a8 <= 13 && 1 == a7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 190 SDtfs, 2521 SDslu, 216 SDs, 0 SdLazy, 5344 SolverSat, 996 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1180 GetRequests, 1148 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s 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, 72 PreInvPairs, 136 NumberOfFragments, 202 HoareAnnotationTreeSize, 72 FomulaSimplifications, 8044 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 815 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 699 NumberOfCodeBlocks, 699 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1158 ConstructedInterpolants, 0 QuantifiedInterpolants, 268456 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2078 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 400/429 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...