/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 11:33:47,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 11:33:47,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 11:33:47,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 11:33:47,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 11:33:47,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 11:33:47,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 11:33:47,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 11:33:47,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 11:33:47,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 11:33:47,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 11:33:47,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 11:33:47,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 11:33:47,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 11:33:47,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 11:33:47,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 11:33:47,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 11:33:47,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 11:33:47,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 11:33:47,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 11:33:47,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 11:33:47,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 11:33:47,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 11:33:47,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 11:33:47,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 11:33:47,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 11:33:47,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 11:33:47,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 11:33:47,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 11:33:47,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 11:33:47,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 11:33:47,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 11:33:47,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 11:33:47,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 11:33:47,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 11:33:47,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 11:33:47,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 11:33:47,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 11:33:47,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 11:33:47,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 11:33:47,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 11:33:47,609 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 [2020-07-20 11:33:47,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:33:47,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:33:47,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:33:47,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:33:47,653 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:33:47,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:33:47,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:33:47,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:33:47,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:33:47,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:33:47,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:33:47,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:33:47,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:33:47,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:33:47,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:33:47,656 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:33:47,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:33:47,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:33:47,657 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:33:47,657 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:33:47,657 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:33:47,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:33:47,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:33:47,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:33:47,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:33:47,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:33:47,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:47,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:33:47,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:33:47,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 11:33:47,959 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:33:47,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:33:47,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:33:47,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:33:47,980 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:33:47,982 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-20 11:33:48,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ecc1546/8ca186fe256d44a4bd4d822da4c1890e/FLAG37374b770 [2020-07-20 11:33:48,627 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:33:48,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-20 11:33:48,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ecc1546/8ca186fe256d44a4bd4d822da4c1890e/FLAG37374b770 [2020-07-20 11:33:48,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ecc1546/8ca186fe256d44a4bd4d822da4c1890e [2020-07-20 11:33:48,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:33:48,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:33:48,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:33:48,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:33:48,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:33:48,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:33:48" (1/1) ... [2020-07-20 11:33:48,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9188d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:48, skipping insertion in model container [2020-07-20 11:33:48,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:33:48" (1/1) ... [2020-07-20 11:33:48,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:33:49,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:33:49,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:33:49,593 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:33:49,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:33:49,722 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:33:49,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49 WrapperNode [2020-07-20 11:33:49,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:33:49,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:33:49,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:33:49,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:33:49,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (1/1) ... [2020-07-20 11:33:49,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:33:49,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:33:49,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:33:49,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:33:49,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (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 [2020-07-20 11:33:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:33:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:33:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 11:33:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:33:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:33:51,125 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:33:51,126 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 11:33:51,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:33:51 BoogieIcfgContainer [2020-07-20 11:33:51,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:33:51,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:33:51,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:33:51,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:33:51,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:33:48" (1/3) ... [2020-07-20 11:33:51,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3237857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:33:51, skipping insertion in model container [2020-07-20 11:33:51,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:33:49" (2/3) ... [2020-07-20 11:33:51,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3237857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:33:51, skipping insertion in model container [2020-07-20 11:33:51,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:33:51" (3/3) ... [2020-07-20 11:33:51,140 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-07-20 11:33:51,151 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:33:51,160 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:33:51,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:33:51,202 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:33:51,202 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:33:51,202 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:33:51,203 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:33:51,203 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:33:51,203 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:33:51,203 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:33:51,204 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:33:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 11:33:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 11:33:51,238 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:51,239 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] [2020-07-20 11:33:51,240 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:51,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:51,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-07-20 11:33:51,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:51,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1378631141] [2020-07-20 11:33:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:51,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:51,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:51,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:51,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1378631141] [2020-07-20 11:33:51,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:51,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:33:51,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325122643] [2020-07-20 11:33:51,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:33:51,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:51,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:33:51,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:51,518 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 11:33:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:52,399 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 11:33:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:33:52,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-20 11:33:52,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:52,417 INFO L225 Difference]: With dead ends: 547 [2020-07-20 11:33:52,417 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 11:33:52,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 11:33:52,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 11:33:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 11:33:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-20 11:33:52,491 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 91 [2020-07-20 11:33:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:52,492 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-20 11:33:52,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:33:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-20 11:33:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-20 11:33:52,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:52,498 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] [2020-07-20 11:33:52,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:52,712 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:52,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1768869960, now seen corresponding path program 1 times [2020-07-20 11:33:52,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:52,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621618199] [2020-07-20 11:33:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:52,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:52,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:52,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:52,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621618199] [2020-07-20 11:33:52,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:52,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:33:52,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448410961] [2020-07-20 11:33:52,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:33:52,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:52,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:33:52,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:33:52,857 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 5 states. [2020-07-20 11:33:53,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:53,644 INFO L93 Difference]: Finished difference Result 701 states and 1021 transitions. [2020-07-20 11:33:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:33:53,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-07-20 11:33:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:53,653 INFO L225 Difference]: With dead ends: 701 [2020-07-20 11:33:53,654 INFO L226 Difference]: Without dead ends: 429 [2020-07-20 11:33:53,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 11:33:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-07-20 11:33:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 417. [2020-07-20 11:33:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-20 11:33:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-07-20 11:33:53,708 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 101 [2020-07-20 11:33:53,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:53,709 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-07-20 11:33:53,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:33:53,709 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-07-20 11:33:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-20 11:33:53,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:53,713 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] [2020-07-20 11:33:53,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:53,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:53,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-07-20 11:33:53,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:53,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245758987] [2020-07-20 11:33:53,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:54,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:33:54,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:54,041 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:54,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:54,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245758987] [2020-07-20 11:33:54,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:54,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:33:54,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057832669] [2020-07-20 11:33:54,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:33:54,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:54,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:33:54,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:54,044 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 3 states. [2020-07-20 11:33:54,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:54,623 INFO L93 Difference]: Finished difference Result 1235 states and 1767 transitions. [2020-07-20 11:33:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:33:54,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-20 11:33:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:54,636 INFO L225 Difference]: With dead ends: 1235 [2020-07-20 11:33:54,637 INFO L226 Difference]: Without dead ends: 824 [2020-07-20 11:33:54,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-20 11:33:54,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2020-07-20 11:33:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-07-20 11:33:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1130 transitions. [2020-07-20 11:33:54,699 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1130 transitions. Word has length 102 [2020-07-20 11:33:54,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:54,699 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 1130 transitions. [2020-07-20 11:33:54,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:33:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1130 transitions. [2020-07-20 11:33:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 11:33:54,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:54,706 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] [2020-07-20 11:33:54,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:54,921 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:54,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1016446174, now seen corresponding path program 1 times [2020-07-20 11:33:54,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:54,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214482482] [2020-07-20 11:33:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:55,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:55,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:55,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:55,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214482482] [2020-07-20 11:33:55,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:55,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 11:33:55,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502378826] [2020-07-20 11:33:55,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:33:55,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:55,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:33:55,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:33:55,078 INFO L87 Difference]: Start difference. First operand 824 states and 1130 transitions. Second operand 5 states. [2020-07-20 11:33:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:56,000 INFO L93 Difference]: Finished difference Result 2498 states and 3622 transitions. [2020-07-20 11:33:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 11:33:56,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-20 11:33:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:56,015 INFO L225 Difference]: With dead ends: 2498 [2020-07-20 11:33:56,015 INFO L226 Difference]: Without dead ends: 1680 [2020-07-20 11:33:56,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:33:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2020-07-20 11:33:56,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1644. [2020-07-20 11:33:56,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-07-20 11:33:56,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2205 transitions. [2020-07-20 11:33:56,099 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2205 transitions. Word has length 116 [2020-07-20 11:33:56,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:56,100 INFO L479 AbstractCegarLoop]: Abstraction has 1644 states and 2205 transitions. [2020-07-20 11:33:56,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:33:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2205 transitions. [2020-07-20 11:33:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 11:33:56,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:56,106 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:33:56,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:56,322 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:56,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:56,323 INFO L82 PathProgramCache]: Analyzing trace with hash 2004252269, now seen corresponding path program 1 times [2020-07-20 11:33:56,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:56,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965771532] [2020-07-20 11:33:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:56,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:33:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 11:33:56,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:33:56,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965771532] [2020-07-20 11:33:56,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:33:56,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:33:56,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575112621] [2020-07-20 11:33:56,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:33:56,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:56,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:33:56,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:56,447 INFO L87 Difference]: Start difference. First operand 1644 states and 2205 transitions. Second operand 3 states. [2020-07-20 11:33:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:57,152 INFO L93 Difference]: Finished difference Result 4501 states and 6119 transitions. [2020-07-20 11:33:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:33:57,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 11:33:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:57,175 INFO L225 Difference]: With dead ends: 4501 [2020-07-20 11:33:57,175 INFO L226 Difference]: Without dead ends: 2863 [2020-07-20 11:33:57,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:33:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2020-07-20 11:33:57,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2593. [2020-07-20 11:33:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2593 states. [2020-07-20 11:33:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3407 transitions. [2020-07-20 11:33:57,286 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3407 transitions. Word has length 125 [2020-07-20 11:33:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:57,287 INFO L479 AbstractCegarLoop]: Abstraction has 2593 states and 3407 transitions. [2020-07-20 11:33:57,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:33:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3407 transitions. [2020-07-20 11:33:57,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 11:33:57,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:57,299 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] [2020-07-20 11:33:57,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:57,512 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:57,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1605716217, now seen corresponding path program 1 times [2020-07-20 11:33:57,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:57,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021750201] [2020-07-20 11:33:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:57,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:33:57,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:57,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:33:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:33:57,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021750201] [2020-07-20 11:33:57,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:33:57,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:33:57,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775281592] [2020-07-20 11:33:57,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:33:57,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:57,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:33:57,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:33:57,740 INFO L87 Difference]: Start difference. First operand 2593 states and 3407 transitions. Second operand 7 states. [2020-07-20 11:33:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:58,549 INFO L93 Difference]: Finished difference Result 5683 states and 7783 transitions. [2020-07-20 11:33:58,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:33:58,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-20 11:33:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:58,576 INFO L225 Difference]: With dead ends: 5683 [2020-07-20 11:33:58,585 INFO L226 Difference]: Without dead ends: 3096 [2020-07-20 11:33:58,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:33:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2020-07-20 11:33:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2887. [2020-07-20 11:33:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2887 states. [2020-07-20 11:33:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 3785 transitions. [2020-07-20 11:33:58,706 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 3785 transitions. Word has length 133 [2020-07-20 11:33:58,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:33:58,707 INFO L479 AbstractCegarLoop]: Abstraction has 2887 states and 3785 transitions. [2020-07-20 11:33:58,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:33:58,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 3785 transitions. [2020-07-20 11:33:58,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 11:33:58,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:33:58,715 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] [2020-07-20 11:33:58,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:58,929 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:33:58,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:33:58,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1001122943, now seen corresponding path program 1 times [2020-07-20 11:33:58,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:33:58,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034763204] [2020-07-20 11:33:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:33:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:33:59,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 11:33:59,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:33:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 11:33:59,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:33:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 11:33:59,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034763204] [2020-07-20 11:33:59,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:33:59,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-20 11:33:59,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167320592] [2020-07-20 11:33:59,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 11:33:59,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:33:59,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 11:33:59,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 11:33:59,192 INFO L87 Difference]: Start difference. First operand 2887 states and 3785 transitions. Second operand 5 states. [2020-07-20 11:33:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:33:59,944 INFO L93 Difference]: Finished difference Result 5830 states and 7798 transitions. [2020-07-20 11:33:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 11:33:59,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-07-20 11:33:59,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:33:59,962 INFO L225 Difference]: With dead ends: 5830 [2020-07-20 11:33:59,962 INFO L226 Difference]: Without dead ends: 2949 [2020-07-20 11:33:59,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-20 11:33:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2020-07-20 11:34:00,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1384. [2020-07-20 11:34:00,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-07-20 11:34:00,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1744 transitions. [2020-07-20 11:34:00,038 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1744 transitions. Word has length 137 [2020-07-20 11:34:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:00,038 INFO L479 AbstractCegarLoop]: Abstraction has 1384 states and 1744 transitions. [2020-07-20 11:34:00,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 11:34:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1744 transitions. [2020-07-20 11:34:00,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 11:34:00,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:00,043 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, 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] [2020-07-20 11:34:00,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:00,259 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:00,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:00,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1157453929, now seen corresponding path program 1 times [2020-07-20 11:34:00,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:00,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195118399] [2020-07-20 11:34:00,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:00,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 11:34:00,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:00,377 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 11:34:00,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:34:00,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195118399] [2020-07-20 11:34:00,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:34:00,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 11:34:00,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230197662] [2020-07-20 11:34:00,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 11:34:00,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:00,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 11:34:00,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:00,380 INFO L87 Difference]: Start difference. First operand 1384 states and 1744 transitions. Second operand 3 states. [2020-07-20 11:34:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:01,010 INFO L93 Difference]: Finished difference Result 3852 states and 4951 transitions. [2020-07-20 11:34:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 11:34:01,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-20 11:34:01,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:01,023 INFO L225 Difference]: With dead ends: 3852 [2020-07-20 11:34:01,023 INFO L226 Difference]: Without dead ends: 2474 [2020-07-20 11:34:01,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 11:34:01,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2020-07-20 11:34:01,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2339. [2020-07-20 11:34:01,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2339 states. [2020-07-20 11:34:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 2910 transitions. [2020-07-20 11:34:01,097 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 2910 transitions. Word has length 149 [2020-07-20 11:34:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:01,097 INFO L479 AbstractCegarLoop]: Abstraction has 2339 states and 2910 transitions. [2020-07-20 11:34:01,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 11:34:01,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 2910 transitions. [2020-07-20 11:34:01,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 11:34:01,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:34:01,105 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] [2020-07-20 11:34:01,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:01,325 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:34:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:34:01,325 INFO L82 PathProgramCache]: Analyzing trace with hash 152592045, now seen corresponding path program 1 times [2020-07-20 11:34:01,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:34:01,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158790821] [2020-07-20 11:34:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:34:01,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 11:34:01,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:34:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:01,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 11:34:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:34:01,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158790821] [2020-07-20 11:34:01,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 11:34:01,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 11:34:01,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849516573] [2020-07-20 11:34:01,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 11:34:01,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:34:01,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 11:34:01,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 11:34:01,571 INFO L87 Difference]: Start difference. First operand 2339 states and 2910 transitions. Second operand 7 states. [2020-07-20 11:34:02,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:34:02,320 INFO L93 Difference]: Finished difference Result 4593 states and 5779 transitions. [2020-07-20 11:34:02,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 11:34:02,321 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-07-20 11:34:02,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:34:02,321 INFO L225 Difference]: With dead ends: 4593 [2020-07-20 11:34:02,321 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:34:02,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 11:34:02,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:34:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:34:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:34:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:34:02,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-07-20 11:34:02,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:34:02,333 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:34:02,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 11:34:02,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:34:02,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:34:02,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:34:02,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:34:03,110 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 91 [2020-07-20 11:34:03,273 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 91 [2020-07-20 11:34:04,051 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2020-07-20 11:34:04,641 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2020-07-20 11:34:05,167 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2020-07-20 11:34:05,171 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:34:05,172 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (<= ~a7~0 |old(~a7~0)|)) [2020-07-20 11:34:05,172 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:34:05,172 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 11:34:05,172 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 11:34:05,172 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,172 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 11:34:05,173 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 11:34:05,174 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,175 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 11:34:05,176 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,177 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 11:34:05,178 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,179 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 11:34:05,180 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,181 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 11:34:05,182 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 11:34:05,183 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 11:34:05,184 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 11:34:05,185 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 11:34:05,186 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a16~0)| 5))) (.cse12 (not (= 1 |old(~a20~0)|))) (.cse11 (not (<= 5 |old(~a16~0)|))) (.cse13 (= 1 ~a20~0)) (.cse5 (<= ~a16~0 |old(~a16~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse9 (<= ~a7~0 |old(~a7~0)|))) (let ((.cse0 (not (<= 15 |old(~a8~0)|))) (.cse2 (<= 15 ~a8~0)) (.cse7 (<= 5 ~a16~0)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse3 (not (= 1 |old(~a21~0)|))) (.cse6 (= 1 ~a17~0)) (.cse15 (or (and .cse5 .cse13 .cse8 .cse9) (and .cse5 (<= ~a16~0 5) .cse8 .cse9))) (.cse16 (let ((.cse17 (not (<= |old(~a21~0)| 0)))) (and (or .cse17 .cse1) (or .cse12 .cse17 .cse11)))) (.cse10 (not (= 1 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse2 .cse7 .cse8 .cse9) .cse0 .cse10 .cse11 .cse3) (or .cse12 .cse10 (and .cse5 .cse7 .cse6 .cse13 .cse8 .cse9) .cse11 .cse3) (or .cse0 (and .cse5 .cse6 .cse2 .cse8 .cse9) .cse1 .cse10 .cse3) (or .cse7 .cse1 .cse11 .cse3 .cse4) (or .cse12 .cse1 .cse13 .cse3 .cse4) (or .cse12 (and .cse5 .cse14 .cse7 .cse13 .cse8 .cse9) .cse11 .cse3 .cse4) (or .cse0 .cse11 .cse3 .cse4 (and .cse5 .cse14 .cse2 .cse7 .cse8 .cse9)) (or (and .cse14 .cse15) .cse16 .cse4) (or (and .cse5 .cse14 .cse8 .cse9) .cse1 .cse3 .cse4) (or .cse12 .cse1 .cse10 (and .cse5 .cse6 .cse13 .cse8 .cse9) .cse3) (or (and .cse6 .cse15) .cse16 .cse10)))) [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,187 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 11:34:05,188 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 11:34:05,189 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,190 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 11:34:05,191 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 11:34:05,192 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 11:34:05,192 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:34:05,192 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)) [2020-07-20 11:34:05,192 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:34:05,192 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:34:05,192 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)|)) (and (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|) (<= ~a7~0 |old(~a7~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-20 11:34:05,192 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:34:05,193 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a20~0))) (let ((.cse3 (let ((.cse7 (<= ~a21~0 0))) (or (and .cse7 .cse4) (and .cse7 .cse1)))) (.cse0 (<= ~a17~0 0)) (.cse2 (= 1 ~a17~0)) (.cse6 (<= 15 ~a8~0)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse2 .cse3) (and .cse0 .cse4 .cse5) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse6 .cse5) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse5 .cse1) (and .cse2 .cse6 .cse5) (not (= 1 |old(~a21~0)|))))) [2020-07-20 11:34:05,193 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 11:34:05,193 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 11:34:05,193 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a20~0))) (let ((.cse3 (let ((.cse7 (<= ~a21~0 0))) (or (and .cse7 .cse4) (and .cse7 .cse1)))) (.cse0 (<= ~a17~0 0)) (.cse2 (= 1 ~a17~0)) (.cse6 (<= 15 ~a8~0)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse2 .cse3) (and .cse0 .cse4 .cse5) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse6 .cse5) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse5 .cse1) (and .cse2 .cse6 .cse5) (not (= 1 |old(~a21~0)|))))) [2020-07-20 11:34:05,193 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 11:34:05,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:34:05 BoogieIcfgContainer [2020-07-20 11:34:05,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:34:05,218 INFO L168 Benchmark]: Toolchain (without parser) took 16256.02 ms. Allocated memory was 145.2 MB in the beginning and 420.0 MB in the end (delta: 274.7 MB). Free memory was 100.6 MB in the beginning and 205.7 MB in the end (delta: -105.2 MB). Peak memory consumption was 290.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,219 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.94 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,220 INFO L168 Benchmark]: Boogie Preprocessor took 111.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,221 INFO L168 Benchmark]: RCFGBuilder took 1296.58 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 165.7 MB in the beginning and 180.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,222 INFO L168 Benchmark]: TraceAbstraction took 14082.87 ms. Allocated memory was 238.0 MB in the beginning and 420.0 MB in the end (delta: 181.9 MB). Free memory was 179.2 MB in the beginning and 205.7 MB in the end (delta: -26.6 MB). Peak memory consumption was 276.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:34:05,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 758.94 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1296.58 ms. Allocated memory was 205.0 MB in the beginning and 238.0 MB in the end (delta: 33.0 MB). Free memory was 165.7 MB in the beginning and 180.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14082.87 ms. Allocated memory was 238.0 MB in the beginning and 420.0 MB in the end (delta: 181.9 MB). Free memory was 179.2 MB in the beginning and 205.7 MB in the end (delta: -26.6 MB). Peak memory consumption was 276.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: 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: ((((((((((((((a17 <= 0 && 1 == a20) && a21 == \old(a21)) || !(\old(a7) <= 0)) || (1 == a17 && ((a21 <= 0 && a16 <= 5) || (a21 <= 0 && 1 == a20)))) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || (a17 <= 0 && ((a21 <= 0 && a16 <= 5) || (a21 <= 0 && 1 == a20)))) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a17 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || ((1 == a17 && 1 == a21) && 1 == a20)) || ((1 == a17 && 15 <= a8) && 1 == a21)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 2366 SDslu, 210 SDs, 0 SdLazy, 4274 SolverSat, 769 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1541 GetRequests, 1506 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2887occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 2227 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 119 PreInvPairs, 163 NumberOfFragments, 736 HoareAnnotationTreeSize, 119 FomulaSimplifications, 10531 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3586 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1111 NumberOfCodeBlocks, 1111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1526 ConstructedInterpolants, 0 QuantifiedInterpolants, 484280 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3420 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 443/480 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...