/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_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:32:07,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:32:07,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:32:07,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:32:07,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:32:07,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:32:07,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:32:07,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:32:07,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:32:07,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:32:07,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:32:07,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:32:07,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:32:07,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:32:07,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:32:07,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:32:07,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:32:07,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:32:07,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:32:07,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:32:07,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:32:07,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:32:07,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:32:07,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:32:07,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:32:07,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:32:07,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:32:07,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:32:07,310 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 13:32:07,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:32:07,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:32:07,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:32:07,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:32:07,335 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:32:07,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:32:07,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:32:07,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:32:07,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:32:07,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:32:07,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:32:07,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:32:07,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:32:07,337 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:32:07,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:32:07,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:32:07,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:32:07,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:32:07,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:32:07,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:32:07,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:32:07,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:32:07,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:32:07,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:32:07,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:32:07,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:32:07,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:32:07,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:32:07,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:32:07,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:32:07,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:32:07,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:32:07,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:32:07,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:32:07,799 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:32:07,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-09-04 13:32:07,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c202871/dd7f975b278e402aa2b0ddf04fa15310/FLAGe5cf0815e [2020-09-04 13:32:08,526 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:32:08,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label06.c [2020-09-04 13:32:08,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c202871/dd7f975b278e402aa2b0ddf04fa15310/FLAGe5cf0815e [2020-09-04 13:32:08,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c202871/dd7f975b278e402aa2b0ddf04fa15310 [2020-09-04 13:32:08,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:32:08,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:32:08,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:32:08,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:32:08,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:32:08,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:32:08" (1/1) ... [2020-09-04 13:32:08,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377c0b13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:08, skipping insertion in model container [2020-09-04 13:32:08,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:32:08" (1/1) ... [2020-09-04 13:32:08,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:32:08,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:32:09,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:32:09,340 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:32:09,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:32:09,661 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:32:09,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09 WrapperNode [2020-09-04 13:32:09,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:32:09,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:32:09,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:32:09,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:32:09,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (1/1) ... [2020-09-04 13:32:09,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:32:09,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:32:09,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:32:09,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:32:09,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (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 13:32:09,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:32:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:32:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:32:09,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:32:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:32:09,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:32:09,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:32:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:32:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:32:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:32:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:32:11,093 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:32:11,094 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:32:11,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:32:11 BoogieIcfgContainer [2020-09-04 13:32:11,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:32:11,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:32:11,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:32:11,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:32:11,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:32:08" (1/3) ... [2020-09-04 13:32:11,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4122ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:32:11, skipping insertion in model container [2020-09-04 13:32:11,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:32:09" (2/3) ... [2020-09-04 13:32:11,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4122ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:32:11, skipping insertion in model container [2020-09-04 13:32:11,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:32:11" (3/3) ... [2020-09-04 13:32:11,111 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2020-09-04 13:32:11,123 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:32:11,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:32:11,157 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:32:11,192 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:32:11,192 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:32:11,193 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:32:11,193 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:32:11,193 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:32:11,193 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:32:11,193 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:32:11,193 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:32:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-09-04 13:32:11,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-04 13:32:11,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:11,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:11,241 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:11,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2020-09-04 13:32:11,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:11,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36847185] [2020-09-04 13:32:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:11,929 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 13:32:11,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36847185] [2020-09-04 13:32:11,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:32:11,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 13:32:11,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264787224] [2020-09-04 13:32:11,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:32:11,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:11,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:32:11,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:32:11,962 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-09-04 13:32:13,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:13,520 INFO L93 Difference]: Finished difference Result 569 states and 968 transitions. [2020-09-04 13:32:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:32:13,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2020-09-04 13:32:13,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:13,560 INFO L225 Difference]: With dead ends: 569 [2020-09-04 13:32:13,561 INFO L226 Difference]: Without dead ends: 286 [2020-09-04 13:32:13,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:32:13,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-04 13:32:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-09-04 13:32:13,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-04 13:32:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 408 transitions. [2020-09-04 13:32:13,731 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 408 transitions. Word has length 130 [2020-09-04 13:32:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:13,737 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 408 transitions. [2020-09-04 13:32:13,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:32:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 408 transitions. [2020-09-04 13:32:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-04 13:32:13,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:13,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:13,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:32:13,761 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:13,762 INFO L82 PathProgramCache]: Analyzing trace with hash -855585613, now seen corresponding path program 1 times [2020-09-04 13:32:13,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:13,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647428297] [2020-09-04 13:32:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:13,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:13,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:32:13,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647428297] [2020-09-04 13:32:13,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:32:13,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:32:13,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673916569] [2020-09-04 13:32:14,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:32:14,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:14,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:32:14,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:32:14,003 INFO L87 Difference]: Start difference. First operand 280 states and 408 transitions. Second operand 8 states. [2020-09-04 13:32:16,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:16,184 INFO L93 Difference]: Finished difference Result 1128 states and 1714 transitions. [2020-09-04 13:32:16,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:32:16,185 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-09-04 13:32:16,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:16,193 INFO L225 Difference]: With dead ends: 1128 [2020-09-04 13:32:16,193 INFO L226 Difference]: Without dead ends: 854 [2020-09-04 13:32:16,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:32:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-09-04 13:32:16,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 840. [2020-09-04 13:32:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2020-09-04 13:32:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1195 transitions. [2020-09-04 13:32:16,264 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1195 transitions. Word has length 139 [2020-09-04 13:32:16,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:16,265 INFO L479 AbstractCegarLoop]: Abstraction has 840 states and 1195 transitions. [2020-09-04 13:32:16,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:32:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1195 transitions. [2020-09-04 13:32:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-04 13:32:16,273 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:16,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:16,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:32:16,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:16,274 INFO L82 PathProgramCache]: Analyzing trace with hash -932424019, now seen corresponding path program 1 times [2020-09-04 13:32:16,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:16,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281920797] [2020-09-04 13:32:16,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:16,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:16,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:16,479 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 13:32:16,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281920797] [2020-09-04 13:32:16,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:32:16,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:32:16,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661947291] [2020-09-04 13:32:16,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:32:16,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:16,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:32:16,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:32:16,482 INFO L87 Difference]: Start difference. First operand 840 states and 1195 transitions. Second operand 8 states. [2020-09-04 13:32:17,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:17,987 INFO L93 Difference]: Finished difference Result 2139 states and 3225 transitions. [2020-09-04 13:32:17,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:32:17,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 140 [2020-09-04 13:32:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:17,999 INFO L225 Difference]: With dead ends: 2139 [2020-09-04 13:32:17,999 INFO L226 Difference]: Without dead ends: 1305 [2020-09-04 13:32:18,002 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 [2020-09-04 13:32:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2020-09-04 13:32:18,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1267. [2020-09-04 13:32:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1267 states. [2020-09-04 13:32:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1790 transitions. [2020-09-04 13:32:18,073 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1790 transitions. Word has length 140 [2020-09-04 13:32:18,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:18,073 INFO L479 AbstractCegarLoop]: Abstraction has 1267 states and 1790 transitions. [2020-09-04 13:32:18,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:32:18,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1790 transitions. [2020-09-04 13:32:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-04 13:32:18,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:18,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:18,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 13:32:18,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:18,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:18,080 INFO L82 PathProgramCache]: Analyzing trace with hash -188990609, now seen corresponding path program 1 times [2020-09-04 13:32:18,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:18,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566542896] [2020-09-04 13:32:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:18,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:18,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:18,467 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 13:32:18,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566542896] [2020-09-04 13:32:18,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779722327] [2020-09-04 13:32:18,468 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 13:32:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:18,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:18,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:18,691 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 13:32:18,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:18,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-09-04 13:32:18,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297098267] [2020-09-04 13:32:18,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:18,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:18,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:18,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:32:18,695 INFO L87 Difference]: Start difference. First operand 1267 states and 1790 transitions. Second operand 3 states. [2020-09-04 13:32:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:19,372 INFO L93 Difference]: Finished difference Result 3209 states and 4604 transitions. [2020-09-04 13:32:19,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:19,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2020-09-04 13:32:19,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:19,388 INFO L225 Difference]: With dead ends: 3209 [2020-09-04 13:32:19,389 INFO L226 Difference]: Without dead ends: 1948 [2020-09-04 13:32:19,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:32:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2020-09-04 13:32:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1813. [2020-09-04 13:32:19,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2020-09-04 13:32:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2500 transitions. [2020-09-04 13:32:19,481 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2500 transitions. Word has length 141 [2020-09-04 13:32:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:19,482 INFO L479 AbstractCegarLoop]: Abstraction has 1813 states and 2500 transitions. [2020-09-04 13:32:19,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2500 transitions. [2020-09-04 13:32:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-04 13:32:19,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:32:19,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:32:19,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:32:19,705 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:32:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:32:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1244428519, now seen corresponding path program 1 times [2020-09-04 13:32:19,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:32:19,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015675805] [2020-09-04 13:32:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:32:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:19,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:32:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:19,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:32:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:19,989 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 13:32:19,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015675805] [2020-09-04 13:32:19,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343349454] [2020-09-04 13:32:19,990 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 13:32:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:32:20,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:32:20,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:32:20,207 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 13:32:20,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:32:20,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-09-04 13:32:20,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646232701] [2020-09-04 13:32:20,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:32:20,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:32:20,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:32:20,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:32:20,213 INFO L87 Difference]: Start difference. First operand 1813 states and 2500 transitions. Second operand 3 states. [2020-09-04 13:32:21,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:32:21,019 INFO L93 Difference]: Finished difference Result 4029 states and 5594 transitions. [2020-09-04 13:32:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:32:21,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2020-09-04 13:32:21,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:32:21,022 INFO L225 Difference]: With dead ends: 4029 [2020-09-04 13:32:21,022 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:32:21,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 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 13:32:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:32:21,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:32:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:32:21,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:32:21,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 145 [2020-09-04 13:32:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:32:21,033 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:32:21,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:32:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:32:21,034 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:32:21,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:32:21,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:32:22,236 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 40 [2020-09-04 13:32:22,364 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:32:22,365 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 13:32:22,365 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:32:22,365 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-09-04 13:32:22,365 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-09-04 13:32:22,365 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,365 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-09-04 13:32:22,366 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-09-04 13:32:22,367 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-09-04 13:32:22,372 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-09-04 13:32:22,373 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-09-04 13:32:22,374 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-09-04 13:32:22,375 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-09-04 13:32:22,378 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-09-04 13:32:22,379 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-09-04 13:32:22,380 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-09-04 13:32:22,381 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-09-04 13:32:22,383 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-09-04 13:32:22,383 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-09-04 13:32:22,383 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-09-04 13:32:22,383 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-09-04 13:32:22,383 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-09-04 13:32:22,384 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-09-04 13:32:22,385 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-09-04 13:32:22,390 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-09-04 13:32:22,390 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-09-04 13:32:22,390 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-09-04 13:32:22,390 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,391 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-09-04 13:32:22,392 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-09-04 13:32:22,393 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-09-04 13:32:22,393 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,394 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-09-04 13:32:22,395 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-09-04 13:32:22,396 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,397 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,397 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,397 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,397 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,397 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-09-04 13:32:22,398 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-09-04 13:32:22,398 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-09-04 13:32:22,398 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,399 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,400 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,400 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,400 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,400 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-09-04 13:32:22,400 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-09-04 13:32:22,402 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-09-04 13:32:22,402 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-09-04 13:32:22,402 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-09-04 13:32:22,402 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-09-04 13:32:22,403 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-09-04 13:32:22,403 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-09-04 13:32:22,403 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-09-04 13:32:22,403 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-09-04 13:32:22,403 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a16~0)| 5))) (.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 (not (<= 15 |old(~a8~0)|)) .cse0) (or (= |old(~a8~0)| 13) .cse1 .cse0) (or (= |old(~a7~0)| |old(~a17~0)|) .cse0) (or (not (<= |old(~a21~0)| 0)) .cse1 .cse0) (or (not (<= |old(~a16~0)| 4)) .cse0))) [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-09-04 13:32:22,404 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-09-04 13:32:22,405 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,406 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-09-04 13:32:22,407 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-09-04 13:32:22,408 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,409 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-09-04 13:32:22,410 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:32:22,411 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (not (= ~a17~0 ~a7~0)) (<= 15 ~a8~0)) [2020-09-04 13:32:22,411 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:32:22,411 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:32:22,412 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= |old(~a7~0)| |old(~a17~0)|) (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 13:32:22,412 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:32:22,412 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a16~0 5))) (or (= |old(~a7~0)| |old(~a17~0)|) (and .cse0 (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4) (not (<= 15 |old(~a8~0)|)) (not (= ~a17~0 ~a7~0)) (<= 15 ~a8~0) (and .cse0 (<= ~a21~0 0)))) [2020-09-04 13:32:22,412 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-09-04 13:32:22,412 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-09-04 13:32:22,413 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a16~0 5))) (or (= |old(~a7~0)| |old(~a17~0)|) (and .cse0 (not (= ~a8~0 13))) (not (<= |old(~a16~0)| 5)) (<= ~a16~0 4) (not (<= 15 |old(~a8~0)|)) (not (= ~a17~0 ~a7~0)) (<= 15 ~a8~0) (and .cse0 (<= ~a21~0 0)))) [2020-09-04 13:32:22,413 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-09-04 13:32:22,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:32:22 BoogieIcfgContainer [2020-09-04 13:32:22,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:32:22,438 INFO L168 Benchmark]: Toolchain (without parser) took 13655.76 ms. Allocated memory was 140.0 MB in the beginning and 362.8 MB in the end (delta: 222.8 MB). Free memory was 102.1 MB in the beginning and 115.5 MB in the end (delta: -13.4 MB). Peak memory consumption was 209.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:22,439 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:32:22,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 879.39 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 171.6 MB in the end (delta: -69.7 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:22,441 INFO L168 Benchmark]: Boogie Preprocessor took 181.31 ms. Allocated memory is still 205.5 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:22,442 INFO L168 Benchmark]: RCFGBuilder took 1255.55 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 181.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:22,443 INFO L168 Benchmark]: TraceAbstraction took 11333.62 ms. Allocated memory was 239.1 MB in the beginning and 362.8 MB in the end (delta: 123.7 MB). Free memory was 179.9 MB in the beginning and 115.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:32:22,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 140.0 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 879.39 ms. Allocated memory was 140.0 MB in the beginning and 205.5 MB in the end (delta: 65.5 MB). Free memory was 101.9 MB in the beginning and 171.6 MB in the end (delta: -69.7 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.31 ms. Allocated memory is still 205.5 MB. Free memory was 171.6 MB in the beginning and 166.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1255.55 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 181.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11333.62 ms. Allocated memory was 239.1 MB in the beginning and 362.8 MB in the end (delta: 123.7 MB). Free memory was 179.9 MB in the beginning and 115.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: 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: ((((((\old(a7) == \old(a17) || (a16 <= 5 && !(a8 == 13))) || !(\old(a16) <= 5)) || a16 <= 4) || !(15 <= \old(a8))) || !(a17 == a7)) || 15 <= a8) || (a16 <= 5 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.0s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 486 SDtfs, 1610 SDslu, 136 SDs, 0 SdLazy, 3064 SolverSat, 639 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1813occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 193 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 53 PreInvPairs, 85 NumberOfFragments, 302 HoareAnnotationTreeSize, 53 FomulaSimplifications, 5920 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1244 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 981 NumberOfCodeBlocks, 981 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 660744 SizeOfPredicates, 4 NumberOfNonLiveVariables, 753 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 51/53 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...