/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:06:37,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:06:37,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:06:37,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:06:37,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:06:37,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:06:37,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:06:37,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:06:37,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:06:37,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:06:37,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:06:37,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:06:37,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:06:37,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:06:37,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:06:37,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:06:37,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:06:37,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:06:37,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:06:37,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:06:37,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:06:37,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:06:37,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:06:37,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:06:37,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:06:37,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:06:37,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:06:37,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:06:37,874 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 [2020-07-21 20:06:37,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:06:37,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:06:37,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:06:37,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:06:37,895 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:06:37,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:06:37,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:06:37,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:06:37,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:06:37,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:06:37,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:06:37,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:06:37,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:06:37,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:06:37,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:06:37,897 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:06:37,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:06:37,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:06:37,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:06:37,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:06:37,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:06:37,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:06:37,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:06:37,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:06:37,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:06:37,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:06:37,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:37,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:06:37,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:06:37,900 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:06:38,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:06:38,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:06:38,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:06:38,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:06:38,232 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:06:38,233 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-21 20:06:38,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dbbbab9/a394cf1d56354624b3751abded99621b/FLAGa08756ce9 [2020-07-21 20:06:38,893 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:06:38,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-07-21 20:06:38,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dbbbab9/a394cf1d56354624b3751abded99621b/FLAGa08756ce9 [2020-07-21 20:06:39,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29dbbbab9/a394cf1d56354624b3751abded99621b [2020-07-21 20:06:39,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:06:39,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:06:39,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:06:39,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:06:39,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:06:39,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:39,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5877701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39, skipping insertion in model container [2020-07-21 20:06:39,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:39,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:06:39,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:06:39,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:06:39,755 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:06:39,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:06:39,965 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:06:39,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39 WrapperNode [2020-07-21 20:06:39,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:06:39,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:06:39,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:06:39,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:06:39,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:39,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (1/1) ... [2020-07-21 20:06:40,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:06:40,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:06:40,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:06:40,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:06:40,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (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 [2020-07-21 20:06:40,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:06:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:06:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:06:40,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:06:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:06:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:06:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:06:40,164 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:06:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:06:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:06:40,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:06:41,374 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:06:41,375 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:06:41,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:06:41 BoogieIcfgContainer [2020-07-21 20:06:41,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:06:41,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:06:41,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:06:41,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:06:41,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:06:39" (1/3) ... [2020-07-21 20:06:41,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:06:41, skipping insertion in model container [2020-07-21 20:06:41,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:39" (2/3) ... [2020-07-21 20:06:41,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b91accb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:06:41, skipping insertion in model container [2020-07-21 20:06:41,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:06:41" (3/3) ... [2020-07-21 20:06:41,391 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-07-21 20:06:41,402 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:06:41,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:06:41,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:06:41,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:06:41,454 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:06:41,454 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:06:41,454 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:06:41,455 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:06:41,455 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:06:41,455 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:06:41,455 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:06:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:06:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-21 20:06:41,492 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:41,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:41,495 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:41,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash -940773154, now seen corresponding path program 1 times [2020-07-21 20:06:41,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:41,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383413294] [2020-07-21 20:06:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:41,743 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:41,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:41,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:06:41,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:41,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:41,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383413294] [2020-07-21 20:06:41,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:41,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:41,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646012122] [2020-07-21 20:06:41,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:41,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:41,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:41,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:41,880 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:06:42,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:42,930 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 20:06:42,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:42,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-21 20:06:42,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:42,969 INFO L225 Difference]: With dead ends: 572 [2020-07-21 20:06:42,970 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:06:42,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:06:43,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:06:43,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:06:43,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 20:06:43,109 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 92 [2020-07-21 20:06:43,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:43,110 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 20:06:43,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 20:06:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 20:06:43,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:43,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:43,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:43,331 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:43,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:43,332 INFO L82 PathProgramCache]: Analyzing trace with hash -999601675, now seen corresponding path program 1 times [2020-07-21 20:06:43,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:43,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723438653] [2020-07-21 20:06:43,333 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:43,453 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:43,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:43,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:43,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:43,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:43,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723438653] [2020-07-21 20:06:43,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:43,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:43,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401275125] [2020-07-21 20:06:43,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:43,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:43,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:43,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:43,509 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-21 20:06:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:44,170 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-21 20:06:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:44,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-21 20:06:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:44,177 INFO L225 Difference]: With dead ends: 820 [2020-07-21 20:06:44,177 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 20:06:44,179 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 [2020-07-21 20:06:44,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 20:06:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 20:06:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 20:06:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-21 20:06:44,211 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 102 [2020-07-21 20:06:44,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:44,212 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-21 20:06:44,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-21 20:06:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-21 20:06:44,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:44,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:44,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:44,434 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:44,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:44,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1242400687, now seen corresponding path program 1 times [2020-07-21 20:06:44,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:44,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843378719] [2020-07-21 20:06:44,436 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:44,545 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:44,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:44,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:44,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:44,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:44,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843378719] [2020-07-21 20:06:44,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:44,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:44,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937934395] [2020-07-21 20:06:44,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:44,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:44,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:44,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:44,607 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-21 20:06:45,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:45,205 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-21 20:06:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:45,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-07-21 20:06:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:45,213 INFO L225 Difference]: With dead ends: 1360 [2020-07-21 20:06:45,213 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 20:06:45,215 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:45,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 20:06:45,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 20:06:45,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 20:06:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-21 20:06:45,255 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 107 [2020-07-21 20:06:45,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:45,256 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-21 20:06:45,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:45,257 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-21 20:06:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 20:06:45,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:45,263 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:45,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:45,479 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:45,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:45,480 INFO L82 PathProgramCache]: Analyzing trace with hash -2037525696, now seen corresponding path program 1 times [2020-07-21 20:06:45,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:45,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837584815] [2020-07-21 20:06:45,481 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:45,600 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:45,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:45,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:45,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:45,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:06:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:45,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837584815] [2020-07-21 20:06:45,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:06:45,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 20:06:45,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665373237] [2020-07-21 20:06:45,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:06:45,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:45,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:06:45,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:06:45,759 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-21 20:06:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:48,065 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-21 20:06:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:06:48,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-21 20:06:48,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:48,089 INFO L225 Difference]: With dead ends: 3084 [2020-07-21 20:06:48,089 INFO L226 Difference]: Without dead ends: 2272 [2020-07-21 20:06:48,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:06:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-21 20:06:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-21 20:06:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-21 20:06:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2573 transitions. [2020-07-21 20:06:48,238 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2573 transitions. Word has length 118 [2020-07-21 20:06:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:48,239 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2573 transitions. [2020-07-21 20:06:48,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:06:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2573 transitions. [2020-07-21 20:06:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 20:06:48,254 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:48,255 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:48,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:48,470 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:48,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1595348466, now seen corresponding path program 1 times [2020-07-21 20:06:48,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:48,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886657635] [2020-07-21 20:06:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:48,592 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:48,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:48,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:48,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 20:06:48,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:48,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886657635] [2020-07-21 20:06:48,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:48,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:48,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828607633] [2020-07-21 20:06:48,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:48,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:48,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:48,643 INFO L87 Difference]: Start difference. First operand 2065 states and 2573 transitions. Second operand 3 states. [2020-07-21 20:06:49,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:49,244 INFO L93 Difference]: Finished difference Result 5617 states and 7128 transitions. [2020-07-21 20:06:49,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:49,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-21 20:06:49,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:49,279 INFO L225 Difference]: With dead ends: 5617 [2020-07-21 20:06:49,279 INFO L226 Difference]: Without dead ends: 3562 [2020-07-21 20:06:49,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:49,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2020-07-21 20:06:49,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 2752. [2020-07-21 20:06:49,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2752 states. [2020-07-21 20:06:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3489 transitions. [2020-07-21 20:06:49,483 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3489 transitions. Word has length 127 [2020-07-21 20:06:49,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:49,485 INFO L479 AbstractCegarLoop]: Abstraction has 2752 states and 3489 transitions. [2020-07-21 20:06:49,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:49,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3489 transitions. [2020-07-21 20:06:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-21 20:06:49,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:49,504 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 20:06:49,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:49,720 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:49,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:49,720 INFO L82 PathProgramCache]: Analyzing trace with hash -542065553, now seen corresponding path program 1 times [2020-07-21 20:06:49,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:49,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298890098] [2020-07-21 20:06:49,722 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:49,861 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:49,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:49,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:49,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-21 20:06:49,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:49,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298890098] [2020-07-21 20:06:49,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:49,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:49,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924228743] [2020-07-21 20:06:49,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:49,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:49,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:49,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:49,922 INFO L87 Difference]: Start difference. First operand 2752 states and 3489 transitions. Second operand 3 states. [2020-07-21 20:06:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:50,498 INFO L93 Difference]: Finished difference Result 6578 states and 8490 transitions. [2020-07-21 20:06:50,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:50,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-07-21 20:06:50,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:50,519 INFO L225 Difference]: With dead ends: 6578 [2020-07-21 20:06:50,520 INFO L226 Difference]: Without dead ends: 3836 [2020-07-21 20:06:50,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2020-07-21 20:06:50,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 3159. [2020-07-21 20:06:50,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-21 20:06:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 4093 transitions. [2020-07-21 20:06:50,622 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 4093 transitions. Word has length 143 [2020-07-21 20:06:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:50,623 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 4093 transitions. [2020-07-21 20:06:50,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 4093 transitions. [2020-07-21 20:06:50,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-21 20:06:50,632 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:50,632 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:50,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:50,846 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1459911568, now seen corresponding path program 1 times [2020-07-21 20:06:50,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:50,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78304192] [2020-07-21 20:06:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:51,023 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:51,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:51,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:51,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-07-21 20:06:51,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:06:51,162 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 20:06:51,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78304192] [2020-07-21 20:06:51,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:06:51,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:06:51,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422000398] [2020-07-21 20:06:51,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:06:51,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:51,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:06:51,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:06:51,165 INFO L87 Difference]: Start difference. First operand 3159 states and 4093 transitions. Second operand 6 states. [2020-07-21 20:06:52,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:52,016 INFO L93 Difference]: Finished difference Result 6890 states and 8926 transitions. [2020-07-21 20:06:52,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:06:52,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-21 20:06:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:52,038 INFO L225 Difference]: With dead ends: 6890 [2020-07-21 20:06:52,038 INFO L226 Difference]: Without dead ends: 3741 [2020-07-21 20:06:52,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 338 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:06:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2020-07-21 20:06:52,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3052. [2020-07-21 20:06:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2020-07-21 20:06:52,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 3857 transitions. [2020-07-21 20:06:52,159 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 3857 transitions. Word has length 171 [2020-07-21 20:06:52,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:52,160 INFO L479 AbstractCegarLoop]: Abstraction has 3052 states and 3857 transitions. [2020-07-21 20:06:52,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:06:52,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 3857 transitions. [2020-07-21 20:06:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 20:06:52,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:52,174 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:52,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:52,388 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:52,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:52,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1887261731, now seen corresponding path program 1 times [2020-07-21 20:06:52,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:52,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523882688] [2020-07-21 20:06:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:52,592 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:52,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:52,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:52,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:52,653 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:06:52,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:06:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 20:06:52,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523882688] [2020-07-21 20:06:52,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:06:52,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:06:52,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136284845] [2020-07-21 20:06:52,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:06:52,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:52,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:06:52,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:06:52,788 INFO L87 Difference]: Start difference. First operand 3052 states and 3857 transitions. Second operand 6 states. [2020-07-21 20:06:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:54,063 INFO L93 Difference]: Finished difference Result 8800 states and 12119 transitions. [2020-07-21 20:06:54,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:06:54,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2020-07-21 20:06:54,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:54,099 INFO L225 Difference]: With dead ends: 8800 [2020-07-21 20:06:54,099 INFO L226 Difference]: Without dead ends: 5758 [2020-07-21 20:06:54,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 354 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:06:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2020-07-21 20:06:54,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 5002. [2020-07-21 20:06:54,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5002 states. [2020-07-21 20:06:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 6373 transitions. [2020-07-21 20:06:54,282 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 6373 transitions. Word has length 179 [2020-07-21 20:06:54,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:54,282 INFO L479 AbstractCegarLoop]: Abstraction has 5002 states and 6373 transitions. [2020-07-21 20:06:54,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:06:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 6373 transitions. [2020-07-21 20:06:54,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 20:06:54,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:54,299 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:54,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:54,512 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:54,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:54,513 INFO L82 PathProgramCache]: Analyzing trace with hash 310159644, now seen corresponding path program 1 times [2020-07-21 20:06:54,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:54,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1327610997] [2020-07-21 20:06:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 [2020-07-21 20:06:54,674 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:54,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:54,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:54,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-07-21 20:06:54,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:54,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1327610997] [2020-07-21 20:06:54,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:54,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:54,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601887638] [2020-07-21 20:06:54,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:54,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:54,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:54,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:54,732 INFO L87 Difference]: Start difference. First operand 5002 states and 6373 transitions. Second operand 3 states. [2020-07-21 20:06:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:55,312 INFO L93 Difference]: Finished difference Result 8640 states and 11005 transitions. [2020-07-21 20:06:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:55,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-07-21 20:06:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:55,314 INFO L225 Difference]: With dead ends: 8640 [2020-07-21 20:06:55,314 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:06:55,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:06:55,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:06:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:06:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:06:55,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2020-07-21 20:06:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:55,333 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:06:55,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:06:55,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:06:55,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:55,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:06:56,078 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-21 20:06:56,340 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 66 [2020-07-21 20:06:57,608 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-07-21 20:06:57,875 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-21 20:06:58,170 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 35 [2020-07-21 20:06:58,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:58,175 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-21 20:06:58,176 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:58,176 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:06:58,176 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:06:58,176 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,176 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,177 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,177 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,177 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,177 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,177 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:06:58,178 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:06:58,178 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:06:58,178 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:06:58,178 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:06:58,179 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:06:58,179 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:06:58,179 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:06:58,179 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:06:58,179 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,180 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:06:58,181 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 434) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:06:58,182 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:06:58,183 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,184 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:06:58,185 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:06:58,186 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:06:58,187 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:06:58,188 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:06:58,189 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:06:58,190 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,191 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:06:58,192 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:06:58,193 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:06:58,194 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse2 (<= ~a21~0 0)) (.cse4 (not (<= |old(~a21~0)| 0))) (.cse9 (<= ~a7~0 0)) (.cse7 (not (<= |old(~a7~0)| 0))) (.cse1 (<= ~a20~0 |old(~a20~0)|)) (.cse3 (<= ~a16~0 5)) (.cse8 (<= |old(~a16~0)| ~a16~0)) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse10 (<= ~a8~0 13)) (.cse12 (<= ~a17~0 0)) (.cse5 (not (<= |old(~a16~0)| 5))) (.cse6 (not (<= |old(~a8~0)| 13))) (.cse13 (not (<= |old(~a17~0)| 0))) (.cse11 (not (<= 15 |old(~a8~0)|))) (.cse14 (not (<= |old(~a16~0)| 4))) (.cse15 (<= ~a16~0 4))) (and (or (and .cse0 .cse1 .cse2 .cse3 (<= 5 ~a16~0)) .cse4 .cse5 .cse6 (not (<= 5 |old(~a16~0)|))) (or (and (or .cse7 .cse5) (or .cse7 .cse6)) (and .cse0 .cse1 .cse8 .cse9 .cse3) (and .cse0 .cse10 .cse1 .cse8 .cse9)) (or .cse11 .cse12 .cse13) (or .cse2 (and (or .cse4 .cse6 .cse13) (or .cse4 .cse6 .cse14))) (or .cse11 .cse5 .cse3) (or .cse11 .cse9 .cse7) (or .cse11 (and .cse0 .cse1 .cse8 (<= 15 ~a8~0))) (or (and .cse1 (or (and .cse0 .cse8 .cse12 .cse3) (and .cse8 (or (and .cse0 .cse10 .cse15) (and .cse0 .cse10 .cse12))))) (and (or .cse5 .cse13) (or .cse6 .cse14) (or .cse6 .cse13))) (or .cse11 .cse14 .cse15))) [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,195 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,196 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:06:58,197 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:58,198 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:06:58,199 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:06:58,200 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:06:58,200 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:58,200 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-21 20:06:58,200 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:06:58,200 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:58,200 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a20~0 |old(~a20~0)|) (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|))) [2020-07-21 20:06:58,201 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:58,201 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-21 20:06:58,201 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:06:58,201 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:06:58,201 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (<= ~a16~0 5)) (.cse0 (<= ~a17~0 0)) (.cse2 (<= ~a8~0 13)) (.cse3 (<= ~a7~0 0))) (or (and .cse0 .cse1) (not (<= 15 |old(~a8~0)|)) (and .cse2 (<= ~a16~0 4)) (and .cse2 (<= ~a21~0 0) .cse1) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and .cse3 .cse1) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse0) (not (<= 5 |old(~a16~0)|)) (and .cse2 .cse3))) [2020-07-21 20:06:58,201 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:58,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:06:58 BoogieIcfgContainer [2020-07-21 20:06:58,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:06:58,227 INFO L168 Benchmark]: Toolchain (without parser) took 19050.57 ms. Allocated memory was 136.3 MB in the beginning and 479.2 MB in the end (delta: 342.9 MB). Free memory was 98.6 MB in the beginning and 117.9 MB in the end (delta: -19.3 MB). Peak memory consumption was 369.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,228 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.93 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 98.2 MB in the beginning and 169.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,229 INFO L168 Benchmark]: Boogie Preprocessor took 130.68 ms. Allocated memory is still 202.9 MB. Free memory was 169.3 MB in the beginning and 164.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,230 INFO L168 Benchmark]: RCFGBuilder took 1283.53 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 164.2 MB in the beginning and 178.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,231 INFO L168 Benchmark]: TraceAbstraction took 16841.63 ms. Allocated memory was 231.7 MB in the beginning and 479.2 MB in the end (delta: 247.5 MB). Free memory was 177.4 MB in the beginning and 117.9 MB in the end (delta: 59.5 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:58,235 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.93 ms. Allocated memory was 136.3 MB in the beginning and 202.9 MB in the end (delta: 66.6 MB). Free memory was 98.2 MB in the beginning and 169.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.68 ms. Allocated memory is still 202.9 MB. Free memory was 169.3 MB in the beginning and 164.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.53 ms. Allocated memory was 202.9 MB in the beginning and 231.7 MB in the end (delta: 28.8 MB). Free memory was 164.2 MB in the beginning and 178.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16841.63 ms. Allocated memory was 231.7 MB in the beginning and 479.2 MB in the end (delta: 247.5 MB). Free memory was 177.4 MB in the beginning and 117.9 MB in the end (delta: 59.5 MB). Peak memory consumption was 352.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 434]: 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 && a16 <= 5) || !(15 <= \old(a8))) || (a8 <= 13 && a16 <= 4)) || ((a8 <= 13 && a21 <= 0) && a16 <= 5)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 5)) || !(\old(a16) <= 5)) || (a8 <= 13 && a17 <= 0)) || !(5 <= \old(a16))) || (a8 <= 13 && a7 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 850 SDtfs, 1838 SDslu, 268 SDs, 0 SdLazy, 5776 SolverSat, 823 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1699 GetRequests, 1665 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5002occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 3139 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 162 PreInvPairs, 236 NumberOfFragments, 445 HoareAnnotationTreeSize, 162 FomulaSimplifications, 11718 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3328 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1676 ConstructedInterpolants, 0 QuantifiedInterpolants, 481038 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3918 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 941/967 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...