/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 --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:33:29,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:33:29,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:33:29,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:33:29,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:33:29,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:33:29,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:33:29,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:33:29,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:33:29,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:33:29,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:33:29,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:33:29,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:33:29,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:33:29,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:33:29,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:33:29,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:33:29,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:33:29,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:33:29,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:33:29,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:33:29,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:33:29,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:33:29,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:33:29,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:33:29,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:33:29,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:33:29,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:33:29,127 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 [2020-07-19 21:33:29,149 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:33:29,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:33:29,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:33:29,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:33:29,154 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:33:29,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:33:29,154 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:33:29,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:33:29,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:33:29,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:33:29,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:33:29,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:33:29,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:33:29,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:33:29,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:33:29,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:33:29,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:33:29,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:33:29,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:33:29,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:33:29,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:33:29,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:33:29,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:33:29,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:33:29,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:33:29,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:33:29,487 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:33:29,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:33:29,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:33:29,494 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:33:29,494 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-19 21:33:29,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a04f0a9/4717aecee7d441ca85cb2f159b7c4e6b/FLAG7a70fa083 [2020-07-19 21:33:30,144 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:33:30,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2020-07-19 21:33:30,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a04f0a9/4717aecee7d441ca85cb2f159b7c4e6b/FLAG7a70fa083 [2020-07-19 21:33:30,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a04f0a9/4717aecee7d441ca85cb2f159b7c4e6b [2020-07-19 21:33:30,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:33:30,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:33:30,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:33:30,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:33:30,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:33:30,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:33:30" (1/1) ... [2020-07-19 21:33:30,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f96d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:30, skipping insertion in model container [2020-07-19 21:33:30,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:33:30" (1/1) ... [2020-07-19 21:33:30,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:33:30,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:33:30,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:33:30,865 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:33:31,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:33:31,110 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:33:31,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31 WrapperNode [2020-07-19 21:33:31,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:33:31,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:33:31,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:33:31,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:33:31,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (1/1) ... [2020-07-19 21:33:31,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:33:31,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:33:31,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:33:31,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:33:31,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (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 [2020-07-19 21:33:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:33:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:33:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 21:33:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:33:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:33:31,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:33:32,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:33:32,516 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 21:33:32,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:33:32 BoogieIcfgContainer [2020-07-19 21:33:32,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:33:32,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:33:32,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:33:32,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:33:32,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:33:30" (1/3) ... [2020-07-19 21:33:32,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5811d171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:33:32, skipping insertion in model container [2020-07-19 21:33:32,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:31" (2/3) ... [2020-07-19 21:33:32,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5811d171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:33:32, skipping insertion in model container [2020-07-19 21:33:32,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:33:32" (3/3) ... [2020-07-19 21:33:32,534 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2020-07-19 21:33:32,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:33:32,556 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:33:32,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:33:32,605 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:33:32,605 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:33:32,606 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:33:32,606 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:33:32,606 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:33:32,607 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:33:32,607 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:33:32,607 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:33:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-19 21:33:32,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-19 21:33:32,646 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:32,648 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] [2020-07-19 21:33:32,648 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:32,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1845535338, now seen corresponding path program 1 times [2020-07-19 21:33:32,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:32,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104080077] [2020-07-19 21:33:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 [2020-07-19 21:33:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:33,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104080077] [2020-07-19 21:33:33,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:33:33,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:33:33,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658589957] [2020-07-19 21:33:33,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:33:33,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:33,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:33:33,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:33:33,335 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-19 21:33:35,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:35,337 INFO L93 Difference]: Finished difference Result 723 states and 1255 transitions. [2020-07-19 21:33:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 21:33:35,340 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-07-19 21:33:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:35,357 INFO L225 Difference]: With dead ends: 723 [2020-07-19 21:33:35,358 INFO L226 Difference]: Without dead ends: 423 [2020-07-19 21:33:35,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:33:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-19 21:33:35,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 417. [2020-07-19 21:33:35,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-19 21:33:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 584 transitions. [2020-07-19 21:33:35,455 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 584 transitions. Word has length 114 [2020-07-19 21:33:35,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:35,457 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 584 transitions. [2020-07-19 21:33:35,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:33:35,457 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 584 transitions. [2020-07-19 21:33:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-19 21:33:35,464 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:35,464 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] [2020-07-19 21:33:35,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:33:35,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:35,466 INFO L82 PathProgramCache]: Analyzing trace with hash -457589907, now seen corresponding path program 1 times [2020-07-19 21:33:35,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:35,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459245938] [2020-07-19 21:33:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 [2020-07-19 21:33:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:35,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459245938] [2020-07-19 21:33:35,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:33:35,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 21:33:35,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080426341] [2020-07-19 21:33:35,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:33:35,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:35,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:33:35,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:35,676 INFO L87 Difference]: Start difference. First operand 417 states and 584 transitions. Second operand 8 states. [2020-07-19 21:33:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:37,035 INFO L93 Difference]: Finished difference Result 1269 states and 1843 transitions. [2020-07-19 21:33:37,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:33:37,036 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-07-19 21:33:37,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:37,045 INFO L225 Difference]: With dead ends: 1269 [2020-07-19 21:33:37,045 INFO L226 Difference]: Without dead ends: 858 [2020-07-19 21:33:37,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:33:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-07-19 21:33:37,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 834. [2020-07-19 21:33:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-07-19 21:33:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1168 transitions. [2020-07-19 21:33:37,113 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1168 transitions. Word has length 124 [2020-07-19 21:33:37,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:37,113 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1168 transitions. [2020-07-19 21:33:37,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:33:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1168 transitions. [2020-07-19 21:33:37,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-19 21:33:37,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:37,119 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] [2020-07-19 21:33:37,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:33:37,119 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:37,120 INFO L82 PathProgramCache]: Analyzing trace with hash -526425041, now seen corresponding path program 1 times [2020-07-19 21:33:37,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:37,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392766480] [2020-07-19 21:33:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 [2020-07-19 21:33:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:37,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392766480] [2020-07-19 21:33:37,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997958189] [2020-07-19 21:33:37,514 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 21:33:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:37,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:33:37,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:37,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:37,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:33:37,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-19 21:33:37,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911461140] [2020-07-19 21:33:37,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:33:37,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:37,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:33:37,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:33:37,728 INFO L87 Difference]: Start difference. First operand 834 states and 1168 transitions. Second operand 3 states. [2020-07-19 21:33:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:38,348 INFO L93 Difference]: Finished difference Result 2073 states and 2931 transitions. [2020-07-19 21:33:38,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:33:38,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-19 21:33:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:38,359 INFO L225 Difference]: With dead ends: 2073 [2020-07-19 21:33:38,359 INFO L226 Difference]: Without dead ends: 1245 [2020-07-19 21:33:38,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 21:33:38,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2020-07-19 21:33:38,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1245. [2020-07-19 21:33:38,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1245 states. [2020-07-19 21:33:38,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1694 transitions. [2020-07-19 21:33:38,414 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1694 transitions. Word has length 125 [2020-07-19 21:33:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:38,414 INFO L479 AbstractCegarLoop]: Abstraction has 1245 states and 1694 transitions. [2020-07-19 21:33:38,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:33:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1694 transitions. [2020-07-19 21:33:38,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-19 21:33:38,419 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:38,420 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] [2020-07-19 21:33:38,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 21:33:38,634 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:38,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:38,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1583976871, now seen corresponding path program 1 times [2020-07-19 21:33:38,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:38,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436319697] [2020-07-19 21:33:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 [2020-07-19 21:33:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:38,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436319697] [2020-07-19 21:33:38,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710899856] [2020-07-19 21:33:38,855 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 21:33:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:38,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:33:38,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:38,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:33:38,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-07-19 21:33:38,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447148306] [2020-07-19 21:33:38,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:33:38,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:38,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:33:38,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:33:38,991 INFO L87 Difference]: Start difference. First operand 1245 states and 1694 transitions. Second operand 3 states. [2020-07-19 21:33:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:39,529 INFO L93 Difference]: Finished difference Result 2895 states and 4002 transitions. [2020-07-19 21:33:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:33:39,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-19 21:33:39,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:39,539 INFO L225 Difference]: With dead ends: 2895 [2020-07-19 21:33:39,540 INFO L226 Difference]: Without dead ends: 1656 [2020-07-19 21:33:39,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:33:39,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2020-07-19 21:33:39,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1656. [2020-07-19 21:33:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2020-07-19 21:33:39,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2202 transitions. [2020-07-19 21:33:39,597 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2202 transitions. Word has length 129 [2020-07-19 21:33:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:39,598 INFO L479 AbstractCegarLoop]: Abstraction has 1656 states and 2202 transitions. [2020-07-19 21:33:39,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:33:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2202 transitions. [2020-07-19 21:33:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-19 21:33:39,605 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:39,605 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] [2020-07-19 21:33:39,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:39,819 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:39,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:39,820 INFO L82 PathProgramCache]: Analyzing trace with hash 380307934, now seen corresponding path program 1 times [2020-07-19 21:33:39,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:39,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959936476] [2020-07-19 21:33:39,821 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 [2020-07-19 21:33:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:33:40,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959936476] [2020-07-19 21:33:40,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265641458] [2020-07-19 21:33:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4687580 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 21:33:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:40,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-19 21:33:40,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-19 21:33:40,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:33:40,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-07-19 21:33:40,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804651280] [2020-07-19 21:33:40,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:33:40,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:40,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:33:40,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:40,155 INFO L87 Difference]: Start difference. First operand 1656 states and 2202 transitions. Second operand 3 states. [2020-07-19 21:33:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:40,714 INFO L93 Difference]: Finished difference Result 4400 states and 5951 transitions. [2020-07-19 21:33:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:33:40,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-07-19 21:33:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:40,716 INFO L225 Difference]: With dead ends: 4400 [2020-07-19 21:33:40,716 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 21:33:40,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:40,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 21:33:40,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 21:33:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 21:33:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 21:33:40,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2020-07-19 21:33:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:40,727 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 21:33:40,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:33:40,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 21:33:40,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 21:33:40,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:40,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 21:33:41,426 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 37 [2020-07-19 21:33:41,537 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:33:41,538 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 21:33:41,538 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:33:41,538 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,539 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-19 21:33:41,540 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,541 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-19 21:33:41,542 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-19 21:33:41,543 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 500) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,544 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-19 21:33:41,545 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,546 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-19 21:33:41,547 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-19 21:33:41,548 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,549 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-19 21:33:41,550 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,551 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-19 21:33:41,552 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-19 21:33:41,553 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-19 21:33:41,553 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-19 21:33:41,553 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-19 21:33:41,553 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-19 21:33:41,553 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-19 21:33:41,554 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-19 21:33:41,554 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-19 21:33:41,554 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,554 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,554 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-19 21:33:41,555 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,556 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,557 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,557 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,557 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,557 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-19 21:33:41,557 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 21:33:41,558 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-19 21:33:41,559 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-19 21:33:41,559 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)))) (and (or .cse0 (not (<= |old(~a17~0)| 0))) (or (= 1 |old(~a7~0)|) .cse0) (or (not (<= |old(~a21~0)| 0)) (not (<= |old(~a16~0)| 5)) .cse0) (or (not (<= |old(~a16~0)| 4)) .cse0))) [2020-07-19 21:33:41,559 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-19 21:33:41,559 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,559 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,559 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-19 21:33:41,560 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-19 21:33:41,561 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,562 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-19 21:33:41,563 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-19 21:33:41,564 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,565 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-19 21:33:41,566 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-19 21:33:41,567 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:33:41,568 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5)) [2020-07-19 21:33:41,568 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 21:33:41,568 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:33:41,568 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 (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|))) [2020-07-19 21:33:41,568 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-19 21:33:41,568 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (or (and (<= ~a21~0 0) (<= ~a16~0 5)) (not (= 1 ~a7~0)) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4)) [2020-07-19 21:33:41,569 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-19 21:33:41,569 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-19 21:33:41,569 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (and (<= ~a21~0 0) (<= ~a16~0 5)) (not (= 1 ~a7~0)) (<= ~a17~0 0) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4)) [2020-07-19 21:33:41,569 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-19 21:33:41,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:33:41 BoogieIcfgContainer [2020-07-19 21:33:41,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:33:41,592 INFO L168 Benchmark]: Toolchain (without parser) took 11220.88 ms. Allocated memory was 137.9 MB in the beginning and 369.6 MB in the end (delta: 231.7 MB). Free memory was 101.3 MB in the beginning and 281.9 MB in the end (delta: -180.7 MB). Peak memory consumption was 248.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:33:41,593 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 21:33:41,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.90 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 170.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:33:41,595 INFO L168 Benchmark]: Boogie Preprocessor took 106.38 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:33:41,595 INFO L168 Benchmark]: RCFGBuilder took 1306.46 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 180.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-19 21:33:41,596 INFO L168 Benchmark]: TraceAbstraction took 9064.69 ms. Allocated memory was 236.5 MB in the beginning and 369.6 MB in the end (delta: 133.2 MB). Free memory was 180.4 MB in the beginning and 281.9 MB in the end (delta: -101.5 MB). Peak memory consumption was 229.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:33:41,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.90 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.8 MB in the beginning and 170.7 MB in the end (delta: -69.9 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.38 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1306.46 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 180.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9064.69 ms. Allocated memory was 236.5 MB in the beginning and 369.6 MB in the end (delta: 133.2 MB). Free memory was 180.4 MB in the beginning and 281.9 MB in the end (delta: -101.5 MB). Peak memory consumption was 229.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 500]: 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: (((((a21 <= 0 && a16 <= 5) || !(1 == a7)) || a17 <= 0) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || a16 <= 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.3s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 683 SDtfs, 1565 SDslu, 97 SDs, 0 SdLazy, 2487 SolverSat, 657 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 418 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1656occurred 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 57 PreInvPairs, 97 NumberOfFragments, 246 HoareAnnotationTreeSize, 57 FomulaSimplifications, 2826 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1483 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1042 NumberOfCodeBlocks, 1042 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1034 ConstructedInterpolants, 0 QuantifiedInterpolants, 620489 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1157 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...