/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/Problem02_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:09:18,654 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:09:18,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:09:18,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:09:18,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:09:18,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:09:18,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:09:18,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:09:18,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:09:18,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:09:18,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:09:18,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:09:18,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:09:18,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:09:18,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:09:18,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:09:18,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:09:18,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:09:18,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:09:18,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:09:18,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:09:18,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:09:18,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:09:18,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:09:18,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:09:18,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:09:18,754 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 20:09:18,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:09:18,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:09:18,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:09:18,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:09:18,778 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:09:18,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:09:18,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:09:18,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:09:18,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:09:18,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:09:18,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:09:18,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:09:18,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:09:18,781 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:09:18,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:09:18,782 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:09:18,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:09:18,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:09:18,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:09:18,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:09:18,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:09:18,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:18,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:09:18,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:09:18,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:09:18,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:09:18,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:18,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:09:18,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:09:18,784 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 20:09:19,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:09:19,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:09:19,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:09:19,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:09:19,161 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:09:19,162 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label20.c [2020-07-21 20:09:19,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351ac2382/beb5c52db33e4d62ac1f54a291fa674c/FLAGc5fa9d6db [2020-07-21 20:09:19,803 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:09:19,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label20.c [2020-07-21 20:09:19,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351ac2382/beb5c52db33e4d62ac1f54a291fa674c/FLAGc5fa9d6db [2020-07-21 20:09:20,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351ac2382/beb5c52db33e4d62ac1f54a291fa674c [2020-07-21 20:09:20,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:09:20,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:09:20,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:20,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:09:20,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:09:20,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f29f361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20, skipping insertion in model container [2020-07-21 20:09:20,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:09:20,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:09:20,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:20,599 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:09:20,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:20,835 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:09:20,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20 WrapperNode [2020-07-21 20:09:20,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:20,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:09:20,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:09:20,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:09:20,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (1/1) ... [2020-07-21 20:09:20,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:09:20,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:09:20,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:09:20,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:09:20,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (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 20:09:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:09:21,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:09:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:09:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:09:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:09:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:09:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:09:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:09:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:09:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:09:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:09:22,184 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:09:22,185 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:09:22,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:22 BoogieIcfgContainer [2020-07-21 20:09:22,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:09:22,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:09:22,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:09:22,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:09:22,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:09:20" (1/3) ... [2020-07-21 20:09:22,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888c399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:22, skipping insertion in model container [2020-07-21 20:09:22,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:20" (2/3) ... [2020-07-21 20:09:22,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888c399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:22, skipping insertion in model container [2020-07-21 20:09:22,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:22" (3/3) ... [2020-07-21 20:09:22,205 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label20.c [2020-07-21 20:09:22,217 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:09:22,225 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:09:22,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:09:22,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:09:22,263 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:09:22,264 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:09:22,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:09:22,264 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:09:22,264 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:09:22,264 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:09:22,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:09:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:09:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-07-21 20:09:22,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:22,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:22,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:22,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:22,306 INFO L82 PathProgramCache]: Analyzing trace with hash 927745969, now seen corresponding path program 1 times [2020-07-21 20:09:22,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:22,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977761017] [2020-07-21 20:09:22,314 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 20:09:22,540 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:22,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:22,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:22,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:22,651 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 20:09:22,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:22,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977761017] [2020-07-21 20:09:22,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:22,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:22,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466850466] [2020-07-21 20:09:22,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:22,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:22,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:22,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:22,678 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:09:23,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:23,653 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 20:09:23,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:23,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-07-21 20:09:23,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:23,681 INFO L225 Difference]: With dead ends: 615 [2020-07-21 20:09:23,681 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 20:09:23,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 20:09:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 20:09:23,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 20:09:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 20:09:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 20:09:23,803 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 105 [2020-07-21 20:09:23,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:23,804 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 20:09:23,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 20:09:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 20:09:23,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:23,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:24,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:24,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:24,026 INFO L82 PathProgramCache]: Analyzing trace with hash -643989844, now seen corresponding path program 1 times [2020-07-21 20:09:24,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:24,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307202611] [2020-07-21 20:09:24,027 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 20:09:24,139 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:24,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:24,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:24,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:24,217 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 20:09:24,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:24,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307202611] [2020-07-21 20:09:24,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:24,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:24,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294812729] [2020-07-21 20:09:24,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:24,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:24,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:24,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:24,222 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 20:09:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:24,834 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 20:09:24,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:24,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 20:09:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:24,840 INFO L225 Difference]: With dead ends: 919 [2020-07-21 20:09:24,840 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 20:09:24,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 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 20:09:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 20:09:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 20:09:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 20:09:24,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 20:09:24,880 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 120 [2020-07-21 20:09:24,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:24,881 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 20:09:24,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 20:09:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 20:09:24,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:24,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:25,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:25,098 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:25,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1033644135, now seen corresponding path program 1 times [2020-07-21 20:09:25,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:25,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963201129] [2020-07-21 20:09:25,100 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 20:09:25,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:25,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:25,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:25,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:25,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:25,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963201129] [2020-07-21 20:09:25,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:25,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:25,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825309144] [2020-07-21 20:09:25,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:25,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:25,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:25,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:25,304 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 20:09:26,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:26,015 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 20:09:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:26,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-21 20:09:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:26,021 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 20:09:26,021 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 20:09:26,023 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 20:09:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 20:09:26,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 20:09:26,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 20:09:26,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 20:09:26,054 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 127 [2020-07-21 20:09:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:26,055 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 20:09:26,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 20:09:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 20:09:26,058 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:26,058 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:26,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:26,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:26,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:26,273 INFO L82 PathProgramCache]: Analyzing trace with hash -288422879, now seen corresponding path program 1 times [2020-07-21 20:09:26,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:26,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1837138280] [2020-07-21 20:09:26,275 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 20:09:26,376 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:26,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:26,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:09:26,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:26,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:26,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1837138280] [2020-07-21 20:09:26,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:26,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:26,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111228803] [2020-07-21 20:09:26,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:26,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:26,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:26,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:26,490 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 5 states. [2020-07-21 20:09:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:27,384 INFO L93 Difference]: Finished difference Result 1827 states and 2557 transitions. [2020-07-21 20:09:27,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:27,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2020-07-21 20:09:27,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:27,404 INFO L225 Difference]: With dead ends: 1827 [2020-07-21 20:09:27,404 INFO L226 Difference]: Without dead ends: 1224 [2020-07-21 20:09:27,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:09:27,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2020-07-21 20:09:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1208. [2020-07-21 20:09:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-07-21 20:09:27,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1597 transitions. [2020-07-21 20:09:27,495 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1597 transitions. Word has length 131 [2020-07-21 20:09:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:27,495 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1597 transitions. [2020-07-21 20:09:27,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:27,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1597 transitions. [2020-07-21 20:09:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 20:09:27,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:27,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:27,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:27,718 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:27,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2107190021, now seen corresponding path program 1 times [2020-07-21 20:09:27,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:27,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843378719] [2020-07-21 20:09:27,719 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 20:09:27,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:27,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:27,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:27,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:27,887 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:27,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:27,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843378719] [2020-07-21 20:09:27,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:27,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:27,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125396659] [2020-07-21 20:09:27,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:27,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:27,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:27,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:27,892 INFO L87 Difference]: Start difference. First operand 1208 states and 1597 transitions. Second operand 5 states. [2020-07-21 20:09:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:28,851 INFO L93 Difference]: Finished difference Result 2890 states and 3972 transitions. [2020-07-21 20:09:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:28,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-07-21 20:09:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:28,868 INFO L225 Difference]: With dead ends: 2890 [2020-07-21 20:09:28,868 INFO L226 Difference]: Without dead ends: 1688 [2020-07-21 20:09:28,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:09:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2020-07-21 20:09:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1680. [2020-07-21 20:09:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-07-21 20:09:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2186 transitions. [2020-07-21 20:09:28,982 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2186 transitions. Word has length 140 [2020-07-21 20:09:28,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:28,984 INFO L479 AbstractCegarLoop]: Abstraction has 1680 states and 2186 transitions. [2020-07-21 20:09:28,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:09:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2186 transitions. [2020-07-21 20:09:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:09:28,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:28,998 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:29,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:29,212 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:29,212 INFO L82 PathProgramCache]: Analyzing trace with hash -120934292, now seen corresponding path program 1 times [2020-07-21 20:09:29,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:29,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883258944] [2020-07-21 20:09:29,213 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 20:09:29,321 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:29,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:29,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:29,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:29,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:29,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883258944] [2020-07-21 20:09:29,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:29,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:29,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250450231] [2020-07-21 20:09:29,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:29,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:29,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:29,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:29,521 INFO L87 Difference]: Start difference. First operand 1680 states and 2186 transitions. Second operand 6 states. [2020-07-21 20:09:30,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:30,365 INFO L93 Difference]: Finished difference Result 3362 states and 4385 transitions. [2020-07-21 20:09:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:30,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-07-21 20:09:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:30,374 INFO L225 Difference]: With dead ends: 3362 [2020-07-21 20:09:30,375 INFO L226 Difference]: Without dead ends: 1533 [2020-07-21 20:09:30,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 292 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 20:09:30,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2020-07-21 20:09:30,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1526. [2020-07-21 20:09:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-07-21 20:09:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1835 transitions. [2020-07-21 20:09:30,428 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1835 transitions. Word has length 149 [2020-07-21 20:09:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:30,429 INFO L479 AbstractCegarLoop]: Abstraction has 1526 states and 1835 transitions. [2020-07-21 20:09:30,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:30,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1835 transitions. [2020-07-21 20:09:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 20:09:30,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:30,434 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:30,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:30,648 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:30,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:30,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1053781276, now seen corresponding path program 1 times [2020-07-21 20:09:30,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:30,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827201648] [2020-07-21 20:09:30,649 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 20:09:30,772 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:30,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:30,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:30,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:30,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:30,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827201648] [2020-07-21 20:09:30,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:30,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:30,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050395584] [2020-07-21 20:09:30,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:30,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:30,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:30,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:30,875 INFO L87 Difference]: Start difference. First operand 1526 states and 1835 transitions. Second operand 6 states. [2020-07-21 20:09:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:32,185 INFO L93 Difference]: Finished difference Result 4976 states and 6577 transitions. [2020-07-21 20:09:32,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:32,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2020-07-21 20:09:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:32,207 INFO L225 Difference]: With dead ends: 4976 [2020-07-21 20:09:32,207 INFO L226 Difference]: Without dead ends: 3456 [2020-07-21 20:09:32,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:32,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3456 states. [2020-07-21 20:09:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3456 to 3213. [2020-07-21 20:09:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2020-07-21 20:09:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 3885 transitions. [2020-07-21 20:09:32,368 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 3885 transitions. Word has length 153 [2020-07-21 20:09:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:32,369 INFO L479 AbstractCegarLoop]: Abstraction has 3213 states and 3885 transitions. [2020-07-21 20:09:32,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:32,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 3885 transitions. [2020-07-21 20:09:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 20:09:32,379 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:32,379 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:09:32,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:32,593 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:32,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1869326033, now seen corresponding path program 1 times [2020-07-21 20:09:32,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:32,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999126806] [2020-07-21 20:09:32,595 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 20:09:32,706 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:32,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:32,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:32,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:32,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:32,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999126806] [2020-07-21 20:09:32,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:32,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:32,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29281312] [2020-07-21 20:09:32,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:32,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:32,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:32,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:32,747 INFO L87 Difference]: Start difference. First operand 3213 states and 3885 transitions. Second operand 3 states. [2020-07-21 20:09:33,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:33,311 INFO L93 Difference]: Finished difference Result 6267 states and 7621 transitions. [2020-07-21 20:09:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:33,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 20:09:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:33,329 INFO L225 Difference]: With dead ends: 6267 [2020-07-21 20:09:33,329 INFO L226 Difference]: Without dead ends: 3064 [2020-07-21 20:09:33,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 20:09:33,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2020-07-21 20:09:33,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2918. [2020-07-21 20:09:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2020-07-21 20:09:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3378 transitions. [2020-07-21 20:09:33,447 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3378 transitions. Word has length 163 [2020-07-21 20:09:33,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:33,448 INFO L479 AbstractCegarLoop]: Abstraction has 2918 states and 3378 transitions. [2020-07-21 20:09:33,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3378 transitions. [2020-07-21 20:09:33,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-07-21 20:09:33,457 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:33,457 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:33,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:33,673 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:33,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1712063712, now seen corresponding path program 1 times [2020-07-21 20:09:33,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:33,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625321434] [2020-07-21 20:09:33,675 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 20:09:33,818 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:33,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:33,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:33,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-21 20:09:33,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 129 proven. 45 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-07-21 20:09:33,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625321434] [2020-07-21 20:09:33,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:33,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:09:33,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814218555] [2020-07-21 20:09:33,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:09:33,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:33,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:09:33,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:09:33,945 INFO L87 Difference]: Start difference. First operand 2918 states and 3378 transitions. Second operand 6 states. [2020-07-21 20:09:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:34,923 INFO L93 Difference]: Finished difference Result 5536 states and 6438 transitions. [2020-07-21 20:09:34,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:09:34,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-07-21 20:09:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:34,924 INFO L225 Difference]: With dead ends: 5536 [2020-07-21 20:09:34,925 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:09:34,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 434 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 20:09:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:09:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:09:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:09:34,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:09:34,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 219 [2020-07-21 20:09:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:34,938 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:09:34,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:09:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:09:34,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:09:35,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:35,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:09:36,175 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2020-07-21 20:09:36,410 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-07-21 20:09:36,614 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-07-21 20:09:36,619 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:36,619 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 20:09:36,619 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:36,619 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,620 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,620 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,620 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,620 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,620 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:09:36,621 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:09:36,622 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:09:36,623 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 469) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:36,624 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:09:36,625 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:09:36,626 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,627 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:09:36,628 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:09:36,629 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:09:36,630 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:09:36,631 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,632 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:09:36,633 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse1 (<= ~a28~0 |old(~a28~0)|)) (.cse10 (<= 8 ~a17~0)) (.cse2 (= ~a19~0 |old(~a19~0)|)) (.cse12 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (not (<= 11 |old(~a28~0)|))) (.cse3 (<= 11 ~a28~0)) (.cse11 (<= 9 ~a28~0)) (.cse8 (not (<= 9 |old(~a28~0)|))) (.cse15 (not (<= 10 |old(~a28~0)|))) (.cse14 (<= 10 ~a28~0)) (.cse7 (not (<= |old(~a28~0)| 10))) (.cse9 (not (<= 8 |old(~a17~0)|))) (.cse17 (and .cse1 .cse10 .cse2 .cse12)) (.cse13 (not (<= |old(~a19~0)| 0))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse16 (not (<= |old(~a28~0)| 7))) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse4 (= 1 ~a25~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6) (or .cse0 .cse7 .cse8 .cse9 (and .cse1 .cse10 .cse2 .cse11 .cse12)) (or .cse13 .cse6 .cse3) (or .cse0 (and (<= ~a28~0 10) .cse14 .cse2) .cse7 .cse15) (or (and .cse1 .cse2 .cse11 .cse12) .cse8 .cse13) (or .cse0 .cse7 (and .cse1 .cse10 .cse2 .cse4) .cse9 .cse5) (or .cse13 .cse15 .cse14) (or .cse0 .cse16 .cse9 .cse17) (or .cse7 .cse9 .cse17 .cse13) (or .cse0 .cse16 .cse5 (and .cse1 .cse2 .cse4))))) [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:09:36,634 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,635 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:09:36,636 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:09:36,637 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:09:36,638 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:09:36,639 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 20:09:36,640 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:09:36,640 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:09:36,640 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a28~0 |old(~a28~0)|) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|))) [2020-07-21 20:09:36,640 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 7)) (.cse5 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse0 (= 1 ~a19~0)) (.cse1 (= 1 ~a25~0)) (.cse3 (<= 8 ~a17~0)) (.cse6 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 11 ~a28~0) .cse1) (and .cse0 .cse2 .cse1) (and .cse0 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse2) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse5) (and .cse0 .cse4 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse1) (and .cse3 .cse6))) [2020-07-21 20:09:36,640 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:36,640 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:09:36,641 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (<= ~a28~0 7)) (.cse5 (<= 9 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse0 (= 1 ~a19~0)) (.cse1 (= 1 ~a25~0)) (.cse3 (<= 8 ~a17~0)) (.cse6 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= 11 ~a28~0) .cse1) (and .cse0 .cse2 .cse1) (and .cse0 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse2) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and .cse6 .cse5) (and .cse0 .cse4 (<= 10 ~a28~0)) (and .cse0 .cse3 .cse1) (and .cse3 .cse6))) [2020-07-21 20:09:36,641 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:09:36,641 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:09:36,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:09:36 BoogieIcfgContainer [2020-07-21 20:09:36,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:09:36,665 INFO L168 Benchmark]: Toolchain (without parser) took 16574.69 ms. Allocated memory was 137.9 MB in the beginning and 426.8 MB in the end (delta: 288.9 MB). Free memory was 101.5 MB in the beginning and 117.8 MB in the end (delta: -16.3 MB). Peak memory consumption was 272.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,666 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.61 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 101.1 MB in the beginning and 172.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,667 INFO L168 Benchmark]: Boogie Preprocessor took 94.27 ms. Allocated memory is still 205.0 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,668 INFO L168 Benchmark]: RCFGBuilder took 1265.06 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.4 MB in the beginning and 184.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,669 INFO L168 Benchmark]: TraceAbstraction took 14465.47 ms. Allocated memory was 237.0 MB in the beginning and 426.8 MB in the end (delta: 189.8 MB). Free memory was 182.6 MB in the beginning and 117.8 MB in the end (delta: 64.8 MB). Peak memory consumption was 254.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:09:36,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.61 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 101.1 MB in the beginning and 172.5 MB in the end (delta: -71.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.27 ms. Allocated memory is still 205.0 MB. Free memory was 172.5 MB in the beginning and 167.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1265.06 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 167.4 MB in the beginning and 184.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14465.47 ms. Allocated memory was 237.0 MB in the beginning and 426.8 MB in the end (delta: 189.8 MB). Free memory was 182.6 MB in the beginning and 117.8 MB in the end (delta: 64.8 MB). Peak memory consumption was 254.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 469]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || ((1 == a19 && 11 <= a28) && 1 == a25)) || ((1 == a19 && a28 <= 7) && 1 == a25)) || (((1 == a19 && 8 <= a17) && a28 <= 10) && 9 <= a28)) || ((1 == a19 && 8 <= a17) && a28 <= 7)) || !(\old(a28) <= 7)) || !(8 <= \old(a17))) || (a19 <= 0 && 9 <= a28)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((1 == a19 && 8 <= a17) && 1 == a25)) || (8 <= a17 && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1142 SDtfs, 2821 SDslu, 517 SDs, 0 SdLazy, 5472 SolverSat, 989 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1841 GetRequests, 1800 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3213occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 710 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 160 NumberOfFragments, 461 HoareAnnotationTreeSize, 110 FomulaSimplifications, 4126 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1659 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1307 NumberOfCodeBlocks, 1307 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1816 ConstructedInterpolants, 0 QuantifiedInterpolants, 540060 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3359 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 750/805 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...