/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 21:33:38,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:33:38,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:33:38,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:33:38,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:33:38,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:33:38,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:33:38,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:33:38,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:33:38,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:33:38,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:33:38,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:33:38,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:33:38,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:33:38,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:33:38,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:33:38,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:33:38,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:33:38,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:33:38,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:33:38,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:33:38,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:33:38,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:33:38,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:33:38,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 21:33:38,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:33:38,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:33:38,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:33:38,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-19 21:33:38,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:33:38,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:33:38,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:33:38,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:33:38,505 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:33:38,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:33:38,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:33:38,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:33:38,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:33:38,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:33:38,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:33:38,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:33:38,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:33:38,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:33:38,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:33:38,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:33:38,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:33:38,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:33:38,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:33:38,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:33:38,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:33:38,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:33:38,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:33:38,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:33:38,510 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:33:38,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:33:38,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:33:38,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:33:38,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:33:38,829 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:33:38,830 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-19 21:33:38,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a07842ed/414b5ffbd2cc452a88acd4b509560a4c/FLAG945d5d6aa [2020-07-19 21:33:39,503 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:33:39,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label05.c [2020-07-19 21:33:39,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a07842ed/414b5ffbd2cc452a88acd4b509560a4c/FLAG945d5d6aa [2020-07-19 21:33:39,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a07842ed/414b5ffbd2cc452a88acd4b509560a4c [2020-07-19 21:33:39,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:33:39,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:33:39,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:33:39,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:33:39,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:33:39,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:33:39" (1/1) ... [2020-07-19 21:33:39,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d064662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:39, skipping insertion in model container [2020-07-19 21:33:39,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:33:39" (1/1) ... [2020-07-19 21:33:39,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:33:39,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:33:40,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:33:40,383 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:33:40,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:33:40,573 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:33:40,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40 WrapperNode [2020-07-19 21:33:40,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:33:40,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:33:40,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:33:40,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:33:40,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... [2020-07-19 21:33:40,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:33:40,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:33:40,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:33:40,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:33:40,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:33:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:33:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:33:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 21:33:40,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:33:40,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:33:40,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:33:41,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:33:41,949 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 21:33:41,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:33:41 BoogieIcfgContainer [2020-07-19 21:33:41,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:33:41,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:33:41,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:33:41,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:33:41,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:33:39" (1/3) ... [2020-07-19 21:33:41,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12771adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:33:41, skipping insertion in model container [2020-07-19 21:33:41,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:33:40" (2/3) ... [2020-07-19 21:33:41,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12771adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:33:41, skipping insertion in model container [2020-07-19 21:33:41,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:33:41" (3/3) ... [2020-07-19 21:33:41,975 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label05.c [2020-07-19 21:33:41,987 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:33:42,001 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:33:42,015 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:33:42,042 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:33:42,043 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:33:42,043 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:33:42,043 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:33:42,043 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:33:42,044 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:33:42,044 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:33:42,044 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:33:42,069 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-19 21:33:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-19 21:33:42,081 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:42,083 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:42,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:42,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1904695938, now seen corresponding path program 1 times [2020-07-19 21:33:42,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:42,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587284973] [2020-07-19 21:33:42,102 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:42,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587284973] [2020-07-19 21:33:42,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:33:42,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 21:33:42,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714575261] [2020-07-19 21:33:42,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 21:33:42,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:42,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 21:33:42,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:33:42,895 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-19 21:33:44,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:44,484 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-07-19 21:33:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 21:33:44,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-07-19 21:33:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:44,520 INFO L225 Difference]: With dead ends: 557 [2020-07-19 21:33:44,520 INFO L226 Difference]: Without dead ends: 286 [2020-07-19 21:33:44,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-19 21:33:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-07-19 21:33:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-07-19 21:33:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-19 21:33:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-07-19 21:33:44,610 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 100 [2020-07-19 21:33:44,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:44,611 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-07-19 21:33:44,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 21:33:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-07-19 21:33:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-19 21:33:44,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:44,618 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:44,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:33:44,618 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:44,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1236531093, now seen corresponding path program 1 times [2020-07-19 21:33:44,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:44,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378576823] [2020-07-19 21:33:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:44,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378576823] [2020-07-19 21:33:44,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:33:44,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 21:33:44,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473836627] [2020-07-19 21:33:44,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:33:44,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:44,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:33:44,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:44,832 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-07-19 21:33:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:46,149 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-07-19 21:33:46,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:33:46,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 110 [2020-07-19 21:33:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:46,160 INFO L225 Difference]: With dead ends: 713 [2020-07-19 21:33:46,160 INFO L226 Difference]: Without dead ends: 439 [2020-07-19 21:33:46,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-19 21:33:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-07-19 21:33:46,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-07-19 21:33:46,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-19 21:33:46,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-07-19 21:33:46,240 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 110 [2020-07-19 21:33:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:46,241 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-07-19 21:33:46,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:33:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-07-19 21:33:46,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-19 21:33:46,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:46,255 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:46,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 21:33:46,256 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:46,256 INFO L82 PathProgramCache]: Analyzing trace with hash 235879383, now seen corresponding path program 1 times [2020-07-19 21:33:46,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:46,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265550601] [2020-07-19 21:33:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:46,577 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:46,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265550601] [2020-07-19 21:33:46,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421169397] [2020-07-19 21:33:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:46,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 21:33:46,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:46,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 21:33:46,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2020-07-19 21:33:46,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717887447] [2020-07-19 21:33:46,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 21:33:46,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:46,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 21:33:46,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:33:46,827 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 3 states. [2020-07-19 21:33:47,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:47,403 INFO L93 Difference]: Finished difference Result 1247 states and 1787 transitions. [2020-07-19 21:33:47,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 21:33:47,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-19 21:33:47,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:47,415 INFO L225 Difference]: With dead ends: 1247 [2020-07-19 21:33:47,415 INFO L226 Difference]: Without dead ends: 832 [2020-07-19 21:33:47,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 21:33:47,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-07-19 21:33:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-07-19 21:33:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-19 21:33:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1144 transitions. [2020-07-19 21:33:47,474 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1144 transitions. Word has length 111 [2020-07-19 21:33:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:47,476 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1144 transitions. [2020-07-19 21:33:47,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 21:33:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1144 transitions. [2020-07-19 21:33:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-19 21:33:47,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:47,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:47,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 21:33:47,695 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:47,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1258087941, now seen corresponding path program 1 times [2020-07-19 21:33:47,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:47,697 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037813082] [2020-07-19 21:33:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:47,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037813082] [2020-07-19 21:33:47,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 21:33:47,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 21:33:47,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289125933] [2020-07-19 21:33:47,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:33:47,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:33:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:47,890 INFO L87 Difference]: Start difference. First operand 832 states and 1144 transitions. Second operand 8 states. [2020-07-19 21:33:49,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:49,723 INFO L93 Difference]: Finished difference Result 2808 states and 4147 transitions. [2020-07-19 21:33:49,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 21:33:49,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 125 [2020-07-19 21:33:49,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:49,736 INFO L225 Difference]: With dead ends: 2808 [2020-07-19 21:33:49,737 INFO L226 Difference]: Without dead ends: 1982 [2020-07-19 21:33:49,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-07-19 21:33:49,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-07-19 21:33:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1543. [2020-07-19 21:33:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2020-07-19 21:33:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2052 transitions. [2020-07-19 21:33:49,807 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2052 transitions. Word has length 125 [2020-07-19 21:33:49,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:49,808 INFO L479 AbstractCegarLoop]: Abstraction has 1543 states and 2052 transitions. [2020-07-19 21:33:49,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:33:49,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2052 transitions. [2020-07-19 21:33:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-19 21:33:49,813 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:49,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-19 21:33:49,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 21:33:49,814 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:49,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:49,815 INFO L82 PathProgramCache]: Analyzing trace with hash -676972618, now seen corresponding path program 1 times [2020-07-19 21:33:49,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:49,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508314539] [2020-07-19 21:33:49,815 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:33:49,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508314539] [2020-07-19 21:33:49,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889718869] [2020-07-19 21:33:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:50,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 21:33:50,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 21:33:50,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:33:50,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-19 21:33:50,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917786670] [2020-07-19 21:33:50,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 21:33:50,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:50,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 21:33:50,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-19 21:33:50,209 INFO L87 Difference]: Start difference. First operand 1543 states and 2052 transitions. Second operand 8 states. [2020-07-19 21:33:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:51,681 INFO L93 Difference]: Finished difference Result 3541 states and 4910 transitions. [2020-07-19 21:33:51,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 21:33:51,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-07-19 21:33:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:51,698 INFO L225 Difference]: With dead ends: 3541 [2020-07-19 21:33:51,698 INFO L226 Difference]: Without dead ends: 2004 [2020-07-19 21:33:51,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-19 21:33:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-07-19 21:33:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1684. [2020-07-19 21:33:51,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-07-19 21:33:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2237 transitions. [2020-07-19 21:33:51,782 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2237 transitions. Word has length 142 [2020-07-19 21:33:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:51,784 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 2237 transitions. [2020-07-19 21:33:51,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 21:33:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2237 transitions. [2020-07-19 21:33:51,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-19 21:33:51,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:51,791 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:52,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:52,001 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:52,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:52,002 INFO L82 PathProgramCache]: Analyzing trace with hash 809347390, now seen corresponding path program 1 times [2020-07-19 21:33:52,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:52,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308792335] [2020-07-19 21:33:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:33:52,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308792335] [2020-07-19 21:33:52,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603568675] [2020-07-19 21:33:52,228 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:52,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 21:33:52,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 21:33:52,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:33:52,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 21:33:52,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345733500] [2020-07-19 21:33:52,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:33:52,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:52,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:33:52,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:33:52,440 INFO L87 Difference]: Start difference. First operand 1684 states and 2237 transitions. Second operand 9 states. [2020-07-19 21:33:55,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:55,111 INFO L93 Difference]: Finished difference Result 3992 states and 5524 transitions. [2020-07-19 21:33:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 21:33:55,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 146 [2020-07-19 21:33:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:55,124 INFO L225 Difference]: With dead ends: 3992 [2020-07-19 21:33:55,125 INFO L226 Difference]: Without dead ends: 2314 [2020-07-19 21:33:55,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-07-19 21:33:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2020-07-19 21:33:55,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1708. [2020-07-19 21:33:55,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1708 states. [2020-07-19 21:33:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2121 transitions. [2020-07-19 21:33:55,198 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2121 transitions. Word has length 146 [2020-07-19 21:33:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:55,199 INFO L479 AbstractCegarLoop]: Abstraction has 1708 states and 2121 transitions. [2020-07-19 21:33:55,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:33:55,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2121 transitions. [2020-07-19 21:33:55,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-19 21:33:55,204 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:55,205 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:55,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:55,416 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:55,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:55,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1440991952, now seen corresponding path program 1 times [2020-07-19 21:33:55,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:55,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538395559] [2020-07-19 21:33:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 21:33:55,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538395559] [2020-07-19 21:33:55,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540580366] [2020-07-19 21:33:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 21:33:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:55,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 21:33:55,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 21:33:55,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:33:55,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 21:33:55,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574279553] [2020-07-19 21:33:55,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:33:55,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:55,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:33:55,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:33:55,866 INFO L87 Difference]: Start difference. First operand 1708 states and 2121 transitions. Second operand 9 states. [2020-07-19 21:33:58,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:33:58,870 INFO L93 Difference]: Finished difference Result 5639 states and 7677 transitions. [2020-07-19 21:33:58,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-19 21:33:58,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2020-07-19 21:33:58,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:33:58,895 INFO L225 Difference]: With dead ends: 5639 [2020-07-19 21:33:58,896 INFO L226 Difference]: Without dead ends: 3937 [2020-07-19 21:33:58,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-07-19 21:33:58,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-07-19 21:33:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3299. [2020-07-19 21:33:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3299 states. [2020-07-19 21:33:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4179 transitions. [2020-07-19 21:33:59,032 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4179 transitions. Word has length 166 [2020-07-19 21:33:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:33:59,033 INFO L479 AbstractCegarLoop]: Abstraction has 3299 states and 4179 transitions. [2020-07-19 21:33:59,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:33:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4179 transitions. [2020-07-19 21:33:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-19 21:33:59,044 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:33:59,044 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:33:59,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:33:59,259 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:33:59,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:33:59,260 INFO L82 PathProgramCache]: Analyzing trace with hash -648776304, now seen corresponding path program 1 times [2020-07-19 21:33:59,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:33:59,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578010206] [2020-07-19 21:33:59,261 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 [2020-07-19 21:33:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-19 21:33:59,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578010206] [2020-07-19 21:33:59,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652818239] [2020-07-19 21:33:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79b7a752 No working directory specified, using /storage/repos/ultimate/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 [2020-07-19 21:33:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 21:33:59,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 21:33:59,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 21:33:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 86 proven. 54 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-19 21:33:59,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 21:33:59,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 21:33:59,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200942485] [2020-07-19 21:33:59,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 21:33:59,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 21:33:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 21:33:59,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 21:33:59,755 INFO L87 Difference]: Start difference. First operand 3299 states and 4179 transitions. Second operand 9 states. [2020-07-19 21:34:03,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 21:34:03,639 INFO L93 Difference]: Finished difference Result 6832 states and 8795 transitions. [2020-07-19 21:34:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 21:34:03,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2020-07-19 21:34:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 21:34:03,640 INFO L225 Difference]: With dead ends: 6832 [2020-07-19 21:34:03,640 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 21:34:03,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-07-19 21:34:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 21:34:03,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 21:34:03,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 21:34:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 21:34:03,655 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2020-07-19 21:34:03,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 21:34:03,655 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 21:34:03,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 21:34:03,655 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 21:34:03,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 21:34:03,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 21:34:03,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 21:34:04,908 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 217 [2020-07-19 21:34:05,338 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 217 [2020-07-19 21:34:06,693 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 186 DAG size of output: 71 [2020-07-19 21:34:07,779 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 209 DAG size of output: 66 [2020-07-19 21:34:08,771 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 66 [2020-07-19 21:34:08,776 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:34:08,776 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 21:34:08,777 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:34:08,777 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-19 21:34:08,777 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-19 21:34:08,777 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-19 21:34:08,778 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,779 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-19 21:34:08,780 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,781 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,782 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-19 21:34:08,783 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,784 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-19 21:34:08,785 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-19 21:34:08,786 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,787 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,788 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-19 21:34:08,789 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (= ~a7~0 |old(~a7~0)|)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse15 (= ~a16~0 |old(~a16~0)|)) (.cse16 (= ~a8~0 |old(~a8~0)|)) (.cse17 (= 1 ~a21~0)) (.cse18 (= ~a20~0 |old(~a20~0)|))) (let ((.cse4 (= 13 |old(~a8~0)|)) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse9 (not (<= 15 |old(~a8~0)|))) (.cse6 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (.cse0 (not (<= |old(~a21~0)| 0))) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse2 (not (= 1 |old(~a17~0)|))) (.cse3 (and .cse13 .cse14 .cse15 .cse16 .cse18 (= ~a21~0 |old(~a21~0)|))) (.cse11 (not (= 1 |old(~a20~0)|))) (.cse5 (not (<= |old(~a7~0)| 0))) (.cse12 (not (<= 5 |old(~a16~0)|))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse8 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse6 .cse2 .cse7) (or .cse5 .cse1 .cse6 .cse7 .cse8) (or .cse9 .cse5 .cse6 .cse7 .cse8) (or .cse4 .cse10 .cse6 .cse1 .cse7 .cse8) (or .cse11 .cse10 .cse1 .cse6 .cse2 .cse7) (or .cse11 .cse0 .cse3 .cse8) (or .cse9 .cse5 .cse6 .cse2 .cse7) (or .cse0 .cse1 .cse3 .cse8) (or (and (or .cse11 .cse5 .cse2 .cse12 .cse7) (or .cse11 .cse5 .cse1 .cse2 .cse7)) .cse3) (or .cse11 .cse5 (and .cse13 .cse14 .cse15 .cse16 .cse17 (= 1 ~a20~0)) .cse12 .cse7 .cse8)))) [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-19 21:34:08,790 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,791 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-19 21:34:08,792 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-19 21:34:08,793 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 21:34:08,794 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-19 21:34:08,794 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 21:34:08,794 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 21:34:08,795 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= 1 ~a20~0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-19 21:34:08,795 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-19 21:34:08,795 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (not (= 13 ~a8~0))) (.cse6 (= 1 ~a20~0)) (.cse8 (<= 5 ~a16~0)) (.cse10 (<= 15 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse7 (<= ~a7~0 0)) (.cse4 (= 1 ~a21~0)) (.cse9 (<= ~a21~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a17~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse5 .cse4 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse8 .cse5 .cse4 .cse6) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse7 .cse8 .cse4 .cse6) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse2 .cse3 .cse5 .cse4) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse1 .cse3) (and .cse9 .cse1 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse7 .cse8 .cse10 .cse4) (and .cse7 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse10 .cse4) (and .cse1 .cse7 .cse3 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse3 .cse5))) [2020-07-19 21:34:08,795 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-19 21:34:08,795 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-19 21:34:08,795 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a7~0)) (.cse2 (not (= 13 ~a8~0))) (.cse6 (= 1 ~a20~0)) (.cse8 (<= 5 ~a16~0)) (.cse10 (<= 15 ~a8~0)) (.cse1 (<= ~a17~0 0)) (.cse7 (<= ~a7~0 0)) (.cse4 (= 1 ~a21~0)) (.cse9 (<= ~a21~0 0)) (.cse3 (<= ~a16~0 5)) (.cse5 (= 1 ~a17~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse5 .cse4 .cse6) (not (<= |old(~a7~0)| 0)) (and .cse7 .cse8 .cse5 .cse4 .cse6) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse7 .cse8 .cse4 .cse6) (not (<= 5 |old(~a16~0)|)) (and .cse7 .cse2 .cse3 .cse5 .cse4) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse9 .cse1 .cse3) (and .cse9 .cse1 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse1 .cse7 .cse8 .cse10 .cse4) (and .cse7 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse10 .cse4) (and .cse1 .cse7 .cse3 .cse4) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse3 .cse5))) [2020-07-19 21:34:08,795 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-19 21:34:08,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:34:08 BoogieIcfgContainer [2020-07-19 21:34:08,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:34:08,820 INFO L168 Benchmark]: Toolchain (without parser) took 29031.31 ms. Allocated memory was 138.4 MB in the beginning and 575.1 MB in the end (delta: 436.7 MB). Free memory was 101.3 MB in the beginning and 358.2 MB in the end (delta: -256.9 MB). Peak memory consumption was 458.6 MB. Max. memory is 7.1 GB. [2020-07-19 21:34:08,821 INFO L168 Benchmark]: CDTParser took 2.30 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 21:34:08,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.31 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.9 MB in the beginning and 170.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:34:08,822 INFO L168 Benchmark]: Boogie Preprocessor took 115.56 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 165.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-19 21:34:08,823 INFO L168 Benchmark]: RCFGBuilder took 1268.64 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 179.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-19 21:34:08,824 INFO L168 Benchmark]: TraceAbstraction took 26857.80 ms. Allocated memory was 238.6 MB in the beginning and 575.1 MB in the end (delta: 336.6 MB). Free memory was 179.3 MB in the beginning and 358.2 MB in the end (delta: -178.9 MB). Peak memory consumption was 436.5 MB. Max. memory is 7.1 GB. [2020-07-19 21:34:08,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.30 ms. Allocated memory is still 138.4 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 783.31 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.9 MB in the beginning and 170.9 MB in the end (delta: -70.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.56 ms. Allocated memory is still 205.5 MB. Free memory was 170.9 MB in the beginning and 165.9 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1268.64 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 165.9 MB in the beginning and 179.3 MB in the end (delta: -13.5 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26857.80 ms. Allocated memory was 238.6 MB in the beginning and 575.1 MB in the end (delta: 336.6 MB). Free memory was 179.3 MB in the beginning and 358.2 MB in the end (delta: -178.9 MB). Peak memory consumption was 436.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((1 == a7 && a17 <= 0) && !(13 == a8)) && a16 <= 5) && 1 == a21) || ((((1 == a7 && a16 <= 5) && 1 == a17) && 1 == a21) && 1 == a20)) || !(\old(a7) <= 0)) || ((((a7 <= 0 && 5 <= a16) && 1 == a17) && 1 == a21) && 1 == a20)) || !(1 == \old(a17))) || ((((a17 <= 0 && a7 <= 0) && 5 <= a16) && 1 == a21) && 1 == a20)) || !(5 <= \old(a16))) || ((((a7 <= 0 && !(13 == a8)) && a16 <= 5) && 1 == a17) && 1 == a21)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a21 <= 0 && a17 <= 0) && a16 <= 5)) || ((a21 <= 0 && a17 <= 0) && 1 == a20)) || !(\old(a16) <= 5)) || ((((a17 <= 0 && a7 <= 0) && 5 <= a16) && 15 <= a8) && 1 == a21)) || ((((a7 <= 0 && a16 <= 5) && 1 == a17) && 1 == a21) && 1 == a20)) || ((((a7 <= 0 && 1 == a17) && 5 <= a16) && 15 <= a8) && 1 == a21)) || (((a17 <= 0 && a7 <= 0) && a16 <= 5) && 1 == a21)) || !(1 == \old(a21))) || ((a21 <= 0 && a16 <= 5) && 1 == a17) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.8s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 4431 SDslu, 442 SDs, 0 SdLazy, 9044 SolverSat, 1875 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 943 GetRequests, 831 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3299occurred in iteration=7, 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, 2027 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 108 PreInvPairs, 172 NumberOfFragments, 959 HoareAnnotationTreeSize, 108 FomulaSimplifications, 289512 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 29901 FormulaSimplificationTreeSizeReductionInter, 3.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1873 NumberOfCodeBlocks, 1873 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1860 ConstructedInterpolants, 0 QuantifiedInterpolants, 702450 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2249 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 565/735 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...