/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:33:29,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:33:29,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:33:29,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:33:29,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:33:29,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:33:29,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:33:29,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:33:29,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:33:29,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:33:29,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:33:29,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:33:29,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:33:29,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:33:29,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:33:29,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:33:29,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:33:29,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:33:29,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:33:29,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:33:29,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:33:29,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:33:29,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:33:29,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:33:29,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:33:29,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:33:29,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:33:29,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:33:29,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:33:29,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:33:29,694 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:33:29,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:33:29,695 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:33:29,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:33:29,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:33:29,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:33:29,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:33:29,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:33:29,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:33:29,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:33:29,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:33:29,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:33:29,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:33:29,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:33:29,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:33:29,697 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:33:29,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:33:29,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:33:29,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:33:29,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:33:29,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:33:29,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:33:29,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:33:29,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:33:29,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:33:29,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:33:30,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:33:30,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:33:30,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:33:30,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:33:30,185 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:33:30,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-09-04 13:33:30,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1046fcdd4/7bb6c93fe2bf421493ad9ef0984e1449/FLAGeeb1260c1 [2020-09-04 13:33:30,900 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:33:30,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-09-04 13:33:30,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1046fcdd4/7bb6c93fe2bf421493ad9ef0984e1449/FLAGeeb1260c1 [2020-09-04 13:33:31,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1046fcdd4/7bb6c93fe2bf421493ad9ef0984e1449 [2020-09-04 13:33:31,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:33:31,125 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:33:31,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:33:31,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:33:31,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:33:31,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d084142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31, skipping insertion in model container [2020-09-04 13:33:31,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:33:31,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:33:31,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:33:31,684 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:33:31,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:33:31,895 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:33:31,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31 WrapperNode [2020-09-04 13:33:31,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:33:31,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:33:31,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:33:31,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:33:31,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:31,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:32,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... [2020-09-04 13:33:32,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:33:32,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:33:32,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:33:32,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:33:32,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:33:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:33:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:33:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:33:32,096 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:33:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:33:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:33:33,265 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:33:33,265 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:33:33,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:33:33 BoogieIcfgContainer [2020-09-04 13:33:33,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:33:33,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:33:33,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:33:33,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:33:33,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:33:31" (1/3) ... [2020-09-04 13:33:33,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:33:33, skipping insertion in model container [2020-09-04 13:33:33,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:33:31" (2/3) ... [2020-09-04 13:33:33,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:33:33, skipping insertion in model container [2020-09-04 13:33:33,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:33:33" (3/3) ... [2020-09-04 13:33:33,282 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-09-04 13:33:33,296 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:33:33,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:33:33,333 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:33:33,368 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:33:33,368 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:33:33,368 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:33:33,368 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:33:33,369 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:33:33,369 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:33:33,369 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:33:33,369 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:33:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-04 13:33:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-04 13:33:33,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:33:33,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:33:33,412 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:33:33,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:33:33,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1328102103, now seen corresponding path program 1 times [2020-09-04 13:33:33,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:33:33,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041557878] [2020-09-04 13:33:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:33:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:34,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:33:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:34,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041557878] [2020-09-04 13:33:34,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:33:34,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:33:34,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498807123] [2020-09-04 13:33:34,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:33:34,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:33:34,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:33:34,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:33:34,174 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-09-04 13:33:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:33:36,272 INFO L93 Difference]: Finished difference Result 698 states and 1233 transitions. [2020-09-04 13:33:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:33:36,275 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-09-04 13:33:36,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:33:36,295 INFO L225 Difference]: With dead ends: 698 [2020-09-04 13:33:36,295 INFO L226 Difference]: Without dead ends: 423 [2020-09-04 13:33:36,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:33:36,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-09-04 13:33:36,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-09-04 13:33:36,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-09-04 13:33:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-09-04 13:33:36,399 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 121 [2020-09-04 13:33:36,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:33:36,400 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-09-04 13:33:36,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:33:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-09-04 13:33:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-09-04 13:33:36,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:33:36,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:33:36,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:33:36,407 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:33:36,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:33:36,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1654189344, now seen corresponding path program 1 times [2020-09-04 13:33:36,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:33:36,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151086366] [2020-09-04 13:33:36,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:33:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:36,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:33:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:33:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:36,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151086366] [2020-09-04 13:33:36,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:33:36,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:33:36,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142737875] [2020-09-04 13:33:36,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:33:36,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:33:36,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:33:36,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:33:36,653 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 8 states. [2020-09-04 13:33:38,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:33:38,326 INFO L93 Difference]: Finished difference Result 1130 states and 1658 transitions. [2020-09-04 13:33:38,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:33:38,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 131 [2020-09-04 13:33:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:33:38,334 INFO L225 Difference]: With dead ends: 1130 [2020-09-04 13:33:38,334 INFO L226 Difference]: Without dead ends: 719 [2020-09-04 13:33:38,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:33:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2020-09-04 13:33:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 697. [2020-09-04 13:33:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-09-04 13:33:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 978 transitions. [2020-09-04 13:33:38,397 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 978 transitions. Word has length 131 [2020-09-04 13:33:38,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:33:38,397 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 978 transitions. [2020-09-04 13:33:38,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:33:38,397 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 978 transitions. [2020-09-04 13:33:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-04 13:33:38,403 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:33:38,404 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:33:38,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:33:38,404 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:33:38,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:33:38,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1456847330, now seen corresponding path program 1 times [2020-09-04 13:33:38,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:33:38,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597001446] [2020-09-04 13:33:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:33:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:38,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:33:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:38,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:33:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:38,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597001446] [2020-09-04 13:33:38,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093422023] [2020-09-04 13:33:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:33:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:38,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:33:38,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:33:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:39,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:33:39,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-09-04 13:33:39,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694912393] [2020-09-04 13:33:39,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:33:39,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:33:39,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:33:39,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:33:39,090 INFO L87 Difference]: Start difference. First operand 697 states and 978 transitions. Second operand 3 states. [2020-09-04 13:33:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:33:39,713 INFO L93 Difference]: Finished difference Result 1799 states and 2551 transitions. [2020-09-04 13:33:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:33:39,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-09-04 13:33:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:33:39,726 INFO L225 Difference]: With dead ends: 1799 [2020-09-04 13:33:39,726 INFO L226 Difference]: Without dead ends: 1108 [2020-09-04 13:33:39,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:33:39,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-09-04 13:33:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2020-09-04 13:33:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1108 states. [2020-09-04 13:33:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1506 transitions. [2020-09-04 13:33:39,815 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1506 transitions. Word has length 132 [2020-09-04 13:33:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:33:39,817 INFO L479 AbstractCegarLoop]: Abstraction has 1108 states and 1506 transitions. [2020-09-04 13:33:39,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:33:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1506 transitions. [2020-09-04 13:33:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-04 13:33:39,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:33:39,835 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:33:40,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:33:40,050 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:33:40,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:33:40,050 INFO L82 PathProgramCache]: Analyzing trace with hash 982548902, now seen corresponding path program 1 times [2020-09-04 13:33:40,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:33:40,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660774657] [2020-09-04 13:33:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:33:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:33:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:40,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:33:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:40,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660774657] [2020-09-04 13:33:40,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018365021] [2020-09-04 13:33:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:33:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:40,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:33:40,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:33:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:33:40,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:33:40,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-09-04 13:33:40,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542925903] [2020-09-04 13:33:40,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:33:40,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:33:40,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:33:40,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:33:40,415 INFO L87 Difference]: Start difference. First operand 1108 states and 1506 transitions. Second operand 3 states. [2020-09-04 13:33:41,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:33:41,010 INFO L93 Difference]: Finished difference Result 2484 states and 3417 transitions. [2020-09-04 13:33:41,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:33:41,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2020-09-04 13:33:41,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:33:41,034 INFO L225 Difference]: With dead ends: 2484 [2020-09-04 13:33:41,035 INFO L226 Difference]: Without dead ends: 1382 [2020-09-04 13:33:41,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:33:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2020-09-04 13:33:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2020-09-04 13:33:41,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1382 states. [2020-09-04 13:33:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1805 transitions. [2020-09-04 13:33:41,095 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1805 transitions. Word has length 136 [2020-09-04 13:33:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:33:41,096 INFO L479 AbstractCegarLoop]: Abstraction has 1382 states and 1805 transitions. [2020-09-04 13:33:41,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:33:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1805 transitions. [2020-09-04 13:33:41,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-09-04 13:33:41,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:33:41,104 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:33:41,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:33:41,318 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:33:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:33:41,318 INFO L82 PathProgramCache]: Analyzing trace with hash -979849841, now seen corresponding path program 1 times [2020-09-04 13:33:41,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:33:41,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75154678] [2020-09-04 13:33:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:33:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:41,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:33:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:41,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:33:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:41,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 13:33:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:33:41,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75154678] [2020-09-04 13:33:41,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339720266] [2020-09-04 13:33:41,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:33:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:33:41,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:33:41,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:33:41,753 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-04 13:33:41,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:33:41,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:33:41,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186295923] [2020-09-04 13:33:41,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:33:41,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:33:41,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:33:41,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:33:41,757 INFO L87 Difference]: Start difference. First operand 1382 states and 1805 transitions. Second operand 3 states. [2020-09-04 13:33:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:33:42,529 INFO L93 Difference]: Finished difference Result 2756 states and 3615 transitions. [2020-09-04 13:33:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:33:42,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2020-09-04 13:33:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:33:42,532 INFO L225 Difference]: With dead ends: 2756 [2020-09-04 13:33:42,533 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:33:42,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:33:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:33:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:33:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:33:42,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:33:42,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2020-09-04 13:33:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:33:42,607 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:33:42,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:33:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:33:42,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:33:42,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:33:42,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:33:43,542 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 35 [2020-09-04 13:33:43,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:33:43,642 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-09-04 13:33:43,642 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:33:43,642 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-04 13:33:43,642 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-04 13:33:43,643 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,643 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,643 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,644 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,644 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,644 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,644 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-04 13:33:43,645 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-04 13:33:43,646 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,647 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-04 13:33:43,648 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 521) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-04 13:33:43,649 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,650 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-04 13:33:43,651 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,652 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-04 13:33:43,653 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,654 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-04 13:33:43,655 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,656 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-04 13:33:43,657 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-04 13:33:43,658 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-04 13:33:43,659 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-04 13:33:43,659 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-04 13:33:43,659 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,659 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-04 13:33:43,661 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,662 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-04 13:33:43,666 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-04 13:33:43,667 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)))) (and (or .cse0 (not (<= 6 |old(~a16~0)|))) (or (= |old(~a8~0)| 13) .cse0) (or (not (<= |old(~a16~0)| 4)) .cse0) (or (not (<= |old(~a21~0)| 0)) .cse0))) [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,668 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-04 13:33:43,669 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-04 13:33:43,672 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,673 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-04 13:33:43,674 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-04 13:33:43,675 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-04 13:33:43,676 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-04 13:33:43,676 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-04 13:33:43,676 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-04 13:33:43,677 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,682 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-04 13:33:43,683 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:33:43,684 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0)) [2020-09-04 13:33:43,684 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:33:43,685 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:33:43,685 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|))) [2020-09-04 13:33:43,685 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:33:43,685 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (<= ~a16~0 4) (not (= ~a8~0 13)) (<= ~a21~0 0)) [2020-09-04 13:33:43,685 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-04 13:33:43,685 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-04 13:33:43,685 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (<= 6 ~a16~0) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (<= ~a16~0 4) (not (= ~a8~0 13)) (<= ~a21~0 0)) [2020-09-04 13:33:43,685 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:33:43,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:33:43 BoogieIcfgContainer [2020-09-04 13:33:43,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:33:43,709 INFO L168 Benchmark]: Toolchain (without parser) took 12583.77 ms. Allocated memory was 140.5 MB in the beginning and 365.4 MB in the end (delta: 224.9 MB). Free memory was 102.7 MB in the beginning and 205.5 MB in the end (delta: -102.8 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:33:43,710 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:33:43,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.43 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 171.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2020-09-04 13:33:43,711 INFO L168 Benchmark]: Boogie Preprocessor took 112.07 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:33:43,712 INFO L168 Benchmark]: RCFGBuilder took 1263.84 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 180.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:33:43,713 INFO L168 Benchmark]: TraceAbstraction took 10432.80 ms. Allocated memory was 239.6 MB in the beginning and 365.4 MB in the end (delta: 125.8 MB). Free memory was 180.4 MB in the beginning and 205.5 MB in the end (delta: -25.2 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. [2020-09-04 13:33:43,717 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.43 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 102.5 MB in the beginning and 171.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.07 ms. Allocated memory is still 205.5 MB. Free memory was 171.4 MB in the beginning and 166.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1263.84 ms. Allocated memory was 205.5 MB in the beginning and 239.6 MB in the end (delta: 34.1 MB). Free memory was 166.4 MB in the beginning and 180.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10432.80 ms. Allocated memory was 239.6 MB in the beginning and 365.4 MB in the end (delta: 125.8 MB). Free memory was 180.4 MB in the beginning and 205.5 MB in the end (delta: -25.2 MB). Peak memory consumption was 100.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 521]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((6 <= a16 || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || a16 <= 4) || !(a8 == 13)) || a21 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 679 SDtfs, 1086 SDslu, 114 SDs, 0 SdLazy, 2697 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 469 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1382occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 43 PreInvPairs, 63 NumberOfFragments, 234 HoareAnnotationTreeSize, 43 FomulaSimplifications, 1354 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 732 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1098 NumberOfCodeBlocks, 1098 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1090 ConstructedInterpolants, 0 QuantifiedInterpolants, 673654 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1172 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 121/125 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...