/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/Problem10_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:38:56,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:38:56,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:38:56,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:38:56,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:38:56,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:38:56,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:38:56,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:38:56,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:38:56,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:38:56,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:38:56,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:38:56,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:38:56,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:38:56,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:38:56,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:38:56,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:38:56,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:38:56,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:38:56,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:38:56,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:38:56,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:38:56,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:38:56,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:38:56,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:38:56,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:38:56,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:38:56,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:38:56,272 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 13:38:56,305 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:38:56,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:38:56,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:38:56,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:38:56,311 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:38:56,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:38:56,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:38:56,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:38:56,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:38:56,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:38:56,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:38:56,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:38:56,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:38:56,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:38:56,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:38:56,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:38:56,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:38:56,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:38:56,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:38:56,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:38:56,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:38:56,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:38:56,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:38:56,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:38:56,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:38:56,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:38:56,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:38:56,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:38:56,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:38:56,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:38:56,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:38:56,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:38:56,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:38:56,811 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:38:56,812 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:38:56,814 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-04 13:38:56,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306ade93c/1260096f4df64c63bfd976ef342c466d/FLAG3eafe3de0 [2020-09-04 13:38:57,573 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:38:57,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label51.c [2020-09-04 13:38:57,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306ade93c/1260096f4df64c63bfd976ef342c466d/FLAG3eafe3de0 [2020-09-04 13:38:57,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/306ade93c/1260096f4df64c63bfd976ef342c466d [2020-09-04 13:38:57,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:38:57,832 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:38:57,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:38:57,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:38:57,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:38:57,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:38:57" (1/1) ... [2020-09-04 13:38:57,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c489c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:57, skipping insertion in model container [2020-09-04 13:38:57,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:38:57" (1/1) ... [2020-09-04 13:38:57,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:38:57,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:38:58,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:38:58,543 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:38:58,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:38:58,698 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:38:58,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58 WrapperNode [2020-09-04 13:38:58,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:38:58,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:38:58,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:38:58,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:38:58,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (1/1) ... [2020-09-04 13:38:58,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:38:58,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:38:58,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:38:58,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:38:58,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (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 13:38:58,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:38:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:38:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:38:58,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:38:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:38:58,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:38:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:38:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:38:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:38:58,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:38:58,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:39:00,361 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:39:00,361 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:39:00,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:00 BoogieIcfgContainer [2020-09-04 13:39:00,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:39:00,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:39:00,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:39:00,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:39:00,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:38:57" (1/3) ... [2020-09-04 13:39:00,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acd1f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:00, skipping insertion in model container [2020-09-04 13:39:00,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:38:58" (2/3) ... [2020-09-04 13:39:00,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acd1f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:39:00, skipping insertion in model container [2020-09-04 13:39:00,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:39:00" (3/3) ... [2020-09-04 13:39:00,381 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label51.c [2020-09-04 13:39:00,395 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:39:00,407 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:39:00,433 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:39:00,467 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:39:00,467 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:39:00,467 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:39:00,468 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:39:00,468 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:39:00,468 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:39:00,468 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:39:00,468 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:39:00,497 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-04 13:39:00,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-04 13:39:00,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:00,509 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] [2020-09-04 13:39:00,510 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:00,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:00,518 INFO L82 PathProgramCache]: Analyzing trace with hash -689906609, now seen corresponding path program 1 times [2020-09-04 13:39:00,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:00,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149908739] [2020-09-04 13:39:00,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:00,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:00,969 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 13:39:00,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149908739] [2020-09-04 13:39:00,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:00,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:39:00,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246269601] [2020-09-04 13:39:00,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:39:00,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:01,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:39:01,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:39:01,008 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-09-04 13:39:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:03,188 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-09-04 13:39:03,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:39:03,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-09-04 13:39:03,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:03,229 INFO L225 Difference]: With dead ends: 730 [2020-09-04 13:39:03,229 INFO L226 Difference]: Without dead ends: 447 [2020-09-04 13:39:03,241 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 [2020-09-04 13:39:03,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-04 13:39:03,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-09-04 13:39:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-09-04 13:39:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-09-04 13:39:03,350 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 56 [2020-09-04 13:39:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:03,351 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-09-04 13:39:03,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:39:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-09-04 13:39:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-04 13:39:03,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:03,359 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:03,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:39:03,360 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:03,361 INFO L82 PathProgramCache]: Analyzing trace with hash 652113497, now seen corresponding path program 1 times [2020-09-04 13:39:03,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:03,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886534896] [2020-09-04 13:39:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:03,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:03,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:03,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886534896] [2020-09-04 13:39:03,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:03,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:39:03,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602836991] [2020-09-04 13:39:03,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:39:03,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:03,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:39:03,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:03,717 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-09-04 13:39:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:05,555 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-09-04 13:39:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:39:05,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-09-04 13:39:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:05,562 INFO L225 Difference]: With dead ends: 1041 [2020-09-04 13:39:05,563 INFO L226 Difference]: Without dead ends: 606 [2020-09-04 13:39:05,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:39:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-04 13:39:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-09-04 13:39:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-09-04 13:39:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-09-04 13:39:05,610 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 129 [2020-09-04 13:39:05,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:05,611 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-09-04 13:39:05,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:39:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-09-04 13:39:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-04 13:39:05,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:05,616 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:05,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:39:05,617 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:05,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:05,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1330273235, now seen corresponding path program 1 times [2020-09-04 13:39:05,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:05,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838129073] [2020-09-04 13:39:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:05,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:05,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:06,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838129073] [2020-09-04 13:39:06,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385095743] [2020-09-04 13:39:06,040 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 13:39:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:06,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:06,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:06,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:06,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-09-04 13:39:06,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249512707] [2020-09-04 13:39:06,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:06,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:06,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:06,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:39:06,273 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 3 states. [2020-09-04 13:39:07,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:07,013 INFO L93 Difference]: Finished difference Result 1615 states and 2274 transitions. [2020-09-04 13:39:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:07,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-09-04 13:39:07,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:07,021 INFO L225 Difference]: With dead ends: 1615 [2020-09-04 13:39:07,021 INFO L226 Difference]: Without dead ends: 1029 [2020-09-04 13:39:07,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:39:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2020-09-04 13:39:07,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 886. [2020-09-04 13:39:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-09-04 13:39:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1150 transitions. [2020-09-04 13:39:07,068 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1150 transitions. Word has length 135 [2020-09-04 13:39:07,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:07,069 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1150 transitions. [2020-09-04 13:39:07,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1150 transitions. [2020-09-04 13:39:07,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-04 13:39:07,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:07,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:07,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:39:07,287 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:07,288 INFO L82 PathProgramCache]: Analyzing trace with hash -546700786, now seen corresponding path program 1 times [2020-09-04 13:39:07,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:07,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298860738] [2020-09-04 13:39:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:07,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:07,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:07,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298860738] [2020-09-04 13:39:07,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:39:07,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 13:39:07,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811921282] [2020-09-04 13:39:07,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:39:07,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:07,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:39:07,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:07,644 INFO L87 Difference]: Start difference. First operand 886 states and 1150 transitions. Second operand 8 states. [2020-09-04 13:39:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:09,675 INFO L93 Difference]: Finished difference Result 2245 states and 2959 transitions. [2020-09-04 13:39:09,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:39:09,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2020-09-04 13:39:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:09,684 INFO L225 Difference]: With dead ends: 2245 [2020-09-04 13:39:09,684 INFO L226 Difference]: Without dead ends: 1365 [2020-09-04 13:39:09,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:39:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-09-04 13:39:09,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1057. [2020-09-04 13:39:09,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-09-04 13:39:09,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1317 transitions. [2020-09-04 13:39:09,732 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1317 transitions. Word has length 192 [2020-09-04 13:39:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:09,733 INFO L479 AbstractCegarLoop]: Abstraction has 1057 states and 1317 transitions. [2020-09-04 13:39:09,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:39:09,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1317 transitions. [2020-09-04 13:39:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-04 13:39:09,738 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:09,738 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:09,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 13:39:09,738 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:09,739 INFO L82 PathProgramCache]: Analyzing trace with hash 538749421, now seen corresponding path program 1 times [2020-09-04 13:39:09,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:09,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816721549] [2020-09-04 13:39:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:09,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:09,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:09,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 13:39:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:10,069 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-09-04 13:39:10,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816721549] [2020-09-04 13:39:10,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431847897] [2020-09-04 13:39:10,070 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 13:39:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:10,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:10,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:10,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:39:10,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2020-09-04 13:39:10,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389187992] [2020-09-04 13:39:10,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 13:39:10,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:10,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 13:39:10,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:39:10,380 INFO L87 Difference]: Start difference. First operand 1057 states and 1317 transitions. Second operand 12 states. [2020-09-04 13:39:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:15,259 INFO L93 Difference]: Finished difference Result 4899 states and 6453 transitions. [2020-09-04 13:39:15,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 13:39:15,260 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2020-09-04 13:39:15,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:15,283 INFO L225 Difference]: With dead ends: 4899 [2020-09-04 13:39:15,284 INFO L226 Difference]: Without dead ends: 3848 [2020-09-04 13:39:15,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 13:39:15,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2020-09-04 13:39:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 2825. [2020-09-04 13:39:15,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-09-04 13:39:15,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3421 transitions. [2020-09-04 13:39:15,417 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3421 transitions. Word has length 216 [2020-09-04 13:39:15,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:15,417 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3421 transitions. [2020-09-04 13:39:15,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 13:39:15,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3421 transitions. [2020-09-04 13:39:15,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-09-04 13:39:15,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:15,426 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:15,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:15,641 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:15,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:15,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1368139033, now seen corresponding path program 1 times [2020-09-04 13:39:15,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:15,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511564928] [2020-09-04 13:39:15,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:15,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:15,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-04 13:39:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:16,143 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 98 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:39:16,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511564928] [2020-09-04 13:39:16,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691039123] [2020-09-04 13:39:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:16,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:16,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-09-04 13:39:16,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:16,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:39:16,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419718893] [2020-09-04 13:39:16,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:16,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:16,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:16,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:16,457 INFO L87 Difference]: Start difference. First operand 2825 states and 3421 transitions. Second operand 3 states. [2020-09-04 13:39:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:17,449 INFO L93 Difference]: Finished difference Result 6375 states and 7868 transitions. [2020-09-04 13:39:17,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:17,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 242 [2020-09-04 13:39:17,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:17,475 INFO L225 Difference]: With dead ends: 6375 [2020-09-04 13:39:17,475 INFO L226 Difference]: Without dead ends: 3699 [2020-09-04 13:39:17,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 244 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:39:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2020-09-04 13:39:17,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3554. [2020-09-04 13:39:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3554 states. [2020-09-04 13:39:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 4281 transitions. [2020-09-04 13:39:17,601 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 4281 transitions. Word has length 242 [2020-09-04 13:39:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:17,601 INFO L479 AbstractCegarLoop]: Abstraction has 3554 states and 4281 transitions. [2020-09-04 13:39:17,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 4281 transitions. [2020-09-04 13:39:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-04 13:39:17,611 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:17,612 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:17,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:17,825 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:17,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1951155213, now seen corresponding path program 1 times [2020-09-04 13:39:17,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:17,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710587408] [2020-09-04 13:39:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:17,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:18,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-04 13:39:18,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 102 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:39:18,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710587408] [2020-09-04 13:39:18,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894840661] [2020-09-04 13:39:18,511 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:18,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:18,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:18,816 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:39:18,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:39:18,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-09-04 13:39:18,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235377795] [2020-09-04 13:39:18,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 13:39:18,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:18,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 13:39:18,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:39:18,819 INFO L87 Difference]: Start difference. First operand 3554 states and 4281 transitions. Second operand 13 states. [2020-09-04 13:39:24,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:24,928 INFO L93 Difference]: Finished difference Result 9721 states and 11825 transitions. [2020-09-04 13:39:24,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 13:39:24,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 276 [2020-09-04 13:39:24,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:24,952 INFO L225 Difference]: With dead ends: 9721 [2020-09-04 13:39:24,952 INFO L226 Difference]: Without dead ends: 4253 [2020-09-04 13:39:24,969 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2020-09-04 13:39:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-09-04 13:39:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 3244. [2020-09-04 13:39:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3244 states. [2020-09-04 13:39:25,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 3778 transitions. [2020-09-04 13:39:25,071 INFO L78 Accepts]: Start accepts. Automaton has 3244 states and 3778 transitions. Word has length 276 [2020-09-04 13:39:25,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:25,071 INFO L479 AbstractCegarLoop]: Abstraction has 3244 states and 3778 transitions. [2020-09-04 13:39:25,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 13:39:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3244 states and 3778 transitions. [2020-09-04 13:39:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-09-04 13:39:25,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:39:25,083 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 13:39:25,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:25,296 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:39:25,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:39:25,297 INFO L82 PathProgramCache]: Analyzing trace with hash -685542405, now seen corresponding path program 1 times [2020-09-04 13:39:25,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:39:25,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160793828] [2020-09-04 13:39:25,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:39:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:39:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:25,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:39:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:25,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-04 13:39:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-04 13:39:25,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160793828] [2020-09-04 13:39:25,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595432577] [2020-09-04 13:39:25,767 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:39:25,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:39:25,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:39:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-04 13:39:25,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:39:26,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-09-04 13:39:26,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283848434] [2020-09-04 13:39:26,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:39:26,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:39:26,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:39:26,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:39:26,003 INFO L87 Difference]: Start difference. First operand 3244 states and 3778 transitions. Second operand 3 states. [2020-09-04 13:39:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:39:26,625 INFO L93 Difference]: Finished difference Result 6768 states and 7942 transitions. [2020-09-04 13:39:26,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:39:26,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-09-04 13:39:26,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:39:26,627 INFO L225 Difference]: With dead ends: 6768 [2020-09-04 13:39:26,627 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:39:26,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 318 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 13:39:26,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:39:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:39:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:39:26,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:39:26,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 312 [2020-09-04 13:39:26,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:39:26,646 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:39:26,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:39:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:39:26,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:39:26,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:39:26,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:39:28,505 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 117 [2020-09-04 13:39:28,807 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 117 [2020-09-04 13:39:29,900 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 51 [2020-09-04 13:39:30,314 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 42 [2020-09-04 13:39:30,727 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 42 [2020-09-04 13:39:30,732 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:39:30,733 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-04 13:39:30,733 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:39:30,733 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-04 13:39:30,734 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,734 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,734 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,734 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,734 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-04 13:39:30,735 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-04 13:39:30,736 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-04 13:39:30,737 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,738 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-04 13:39:30,739 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,740 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-04 13:39:30,741 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,742 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-04 13:39:30,743 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,744 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-04 13:39:30,745 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-04 13:39:30,746 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,747 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-04 13:39:30,748 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-04 13:39:30,749 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,750 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-04 13:39:30,751 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= ~a1~0 |old(~a1~0)|)) (.cse1 (= ~a10~0 |old(~a10~0)|))) (let ((.cse3 (not (<= |old(~a19~0)| 8))) (.cse2 (and .cse0 (= ~a19~0 |old(~a19~0)|) .cse1)) (.cse4 (not (<= |old(~a19~0)| 9)))) (and (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse0 .cse1) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) (or .cse2 (not (<= |old(~a10~0)| 1))) (or .cse3 .cse2 (= 8 |old(~a19~0)|)) (or (not (<= 23 |old(~a1~0)|)) .cse2 .cse4 (not (= 14 ~a4~0)) (not (= ~a12~0 0))) (or .cse3 .cse2 (not (<= |old(~a10~0)| 2))) (or (not (<= 4 |old(~a10~0)|)) .cse2 .cse4)))) [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,752 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-04 13:39:30,753 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-04 13:39:30,754 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,755 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-04 13:39:30,756 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-04 13:39:30,757 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:39:30,757 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-09-04 13:39:30,757 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-04 13:39:30,758 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) .cse0) (not (<= |old(~a10~0)| 0)) (and (<= ~a10~0 2) .cse0) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (<= ~a10~0 1) (and (<= 4 ~a10~0) .cse0) (not (= ~a12~0 0)))) [2020-09-04 13:39:30,758 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-04 13:39:30,758 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-04 13:39:30,758 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= 23 ~a1~0) .cse0) (not (<= |old(~a10~0)| 0)) (and (<= ~a10~0 2) .cse0) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (<= ~a10~0 1) (and (<= 4 ~a10~0) .cse0) (not (= ~a12~0 0)))) [2020-09-04 13:39:30,758 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-04 13:39:30,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:39:30 BoogieIcfgContainer [2020-09-04 13:39:30,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:39:30,785 INFO L168 Benchmark]: Toolchain (without parser) took 32953.74 ms. Allocated memory was 140.0 MB in the beginning and 585.6 MB in the end (delta: 445.6 MB). Free memory was 101.5 MB in the beginning and 186.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 474.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:39:30,786 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 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 13:39:30,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 865.66 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 168.8 MB in the end (delta: -67.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:39:30,788 INFO L168 Benchmark]: Boogie Preprocessor took 122.71 ms. Allocated memory is still 204.5 MB. Free memory was 168.8 MB in the beginning and 163.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:39:30,789 INFO L168 Benchmark]: RCFGBuilder took 1545.46 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 163.9 MB in the beginning and 179.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. [2020-09-04 13:39:30,790 INFO L168 Benchmark]: TraceAbstraction took 30413.19 ms. Allocated memory was 238.6 MB in the beginning and 585.6 MB in the end (delta: 347.1 MB). Free memory was 178.2 MB in the beginning and 186.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 452.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:39:30,794 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 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 865.66 ms. Allocated memory was 140.0 MB in the beginning and 204.5 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 168.8 MB in the end (delta: -67.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.71 ms. Allocated memory is still 204.5 MB. Free memory was 168.8 MB in the beginning and 163.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1545.46 ms. Allocated memory was 204.5 MB in the beginning and 238.6 MB in the end (delta: 34.1 MB). Free memory was 163.9 MB in the beginning and 179.6 MB in the end (delta: -15.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30413.19 ms. Allocated memory was 238.6 MB in the beginning and 585.6 MB in the end (delta: 347.1 MB). Free memory was 178.2 MB in the beginning and 186.7 MB in the end (delta: -8.5 MB). Peak memory consumption was 452.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (23 <= a1 && a19 <= 9)) || !(\old(a10) <= 0)) || (a10 <= 2 && a19 <= 9)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9)) || a10 <= 1) || (4 <= a10 && a19 <= 9)) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26.3s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 19.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 654 SDtfs, 5003 SDslu, 429 SDs, 0 SdLazy, 10378 SolverSat, 1981 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1337 GetRequests, 1220 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3554occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2648 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 130 PreInvPairs, 212 NumberOfFragments, 342 HoareAnnotationTreeSize, 130 FomulaSimplifications, 31741 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6728 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2726 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383464 SizeOfPredicates, 7 NumberOfNonLiveVariables, 2011 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 1504/1688 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...