/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_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:10:13,138 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 20:10:13,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:10:13,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:10:13,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:10:13,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:10:13,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:10:13,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:10:13,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:10:13,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:10:13,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:10:13,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:10:13,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:10:13,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:10:13,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:10:13,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:10:13,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:10:13,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:10:13,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:10:13,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:10:13,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:10:13,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:10:13,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:10:13,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:10:13,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:10:13,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:10:13,231 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 20:10:13,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:10:13,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:10:13,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:10:13,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:10:13,253 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:10:13,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:10:13,253 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:10:13,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:10:13,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:10:13,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:10:13,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:10:13,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:10:13,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:10:13,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:10:13,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:10:13,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:10:13,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:10:13,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:10:13,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:10:13,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:10:13,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:10:13,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:10:13,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:10:13,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:10:13,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:10:13,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:10:13,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:13,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:10:13,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:10:13,258 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 20:10:13,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:10:13,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:10:13,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:10:13,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:10:13,568 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:10:13,569 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-07-21 20:10:13,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9d3ac2/86b6b3e8721b43ada3842d92e98f9839/FLAGdfeb2bd46 [2020-07-21 20:10:14,239 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:10:14,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-07-21 20:10:14,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9d3ac2/86b6b3e8721b43ada3842d92e98f9839/FLAGdfeb2bd46 [2020-07-21 20:10:14,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fc9d3ac2/86b6b3e8721b43ada3842d92e98f9839 [2020-07-21 20:10:14,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:10:14,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:10:14,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:14,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:10:14,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:10:14,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:14" (1/1) ... [2020-07-21 20:10:14,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64b801cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:14, skipping insertion in model container [2020-07-21 20:10:14,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:10:14" (1/1) ... [2020-07-21 20:10:14,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:10:14,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:10:14,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:14,970 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:10:15,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:10:15,260 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:10:15,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15 WrapperNode [2020-07-21 20:10:15,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:10:15,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:10:15,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:10:15,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:10:15,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (1/1) ... [2020-07-21 20:10:15,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:10:15,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:10:15,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:10:15,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:10:15,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (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 20:10:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:10:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:10:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:10:15,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:10:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:10:15,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:10:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:10:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:10:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:10:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:10:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:10:16,653 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:10:16,653 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:10:16,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:16 BoogieIcfgContainer [2020-07-21 20:10:16,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:10:16,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:10:16,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:10:16,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:10:16,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:10:14" (1/3) ... [2020-07-21 20:10:16,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfe73a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:16, skipping insertion in model container [2020-07-21 20:10:16,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:10:15" (2/3) ... [2020-07-21 20:10:16,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dfe73a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:10:16, skipping insertion in model container [2020-07-21 20:10:16,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:10:16" (3/3) ... [2020-07-21 20:10:16,673 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label46.c [2020-07-21 20:10:16,684 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:10:16,692 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:10:16,706 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:10:16,732 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:10:16,732 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:10:16,733 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:10:16,733 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:10:16,733 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:10:16,733 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:10:16,733 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:10:16,733 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:10:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:10:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 20:10:16,771 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:16,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:16,773 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:16,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:16,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1613804370, now seen corresponding path program 1 times [2020-07-21 20:10:16,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:16,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417266531] [2020-07-21 20:10:16,790 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 20:10:16,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:16,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:16,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:10:16,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:17,092 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 20:10:17,093 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:17,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417266531] [2020-07-21 20:10:17,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:17,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:17,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038512640] [2020-07-21 20:10:17,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:17,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:17,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:17,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:17,120 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:10:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:18,151 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 20:10:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:18,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-21 20:10:18,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:18,171 INFO L225 Difference]: With dead ends: 619 [2020-07-21 20:10:18,171 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 20:10:18,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 20:10:18,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 20:10:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 20:10:18,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 20:10:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 20:10:18,270 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 118 [2020-07-21 20:10:18,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:18,272 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 20:10:18,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:18,273 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 20:10:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 20:10:18,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:18,287 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:18,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:18,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:18,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1482861857, now seen corresponding path program 1 times [2020-07-21 20:10:18,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:18,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284335681] [2020-07-21 20:10:18,505 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 20:10:18,621 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:18,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:18,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 20:10:18,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:18,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 20:10:18,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:18,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 20:10:18,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284335681] [2020-07-21 20:10:18,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 20:10:18,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 20:10:18,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038198724] [2020-07-21 20:10:18,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 20:10:18,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:18,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 20:10:18,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:18,842 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-21 20:10:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:19,534 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-21 20:10:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 20:10:19,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-21 20:10:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:19,542 INFO L225 Difference]: With dead ends: 941 [2020-07-21 20:10:19,542 INFO L226 Difference]: Without dead ends: 628 [2020-07-21 20:10:19,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:19,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-21 20:10:19,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-21 20:10:19,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-21 20:10:19,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-21 20:10:19,592 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 127 [2020-07-21 20:10:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:19,593 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-21 20:10:19,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 20:10:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-21 20:10:19,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 20:10:19,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:19,597 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:19,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:19,813 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:19,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash -608996166, now seen corresponding path program 1 times [2020-07-21 20:10:19,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:19,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166200059] [2020-07-21 20:10:19,816 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 20:10:19,922 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:19,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:19,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:19,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 20:10:19,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:19,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166200059] [2020-07-21 20:10:19,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:19,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:19,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946708675] [2020-07-21 20:10:19,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:19,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:19,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:19,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:19,991 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-21 20:10:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:20,673 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-21 20:10:20,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:20,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 20:10:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:20,689 INFO L225 Difference]: With dead ends: 1543 [2020-07-21 20:10:20,689 INFO L226 Difference]: Without dead ends: 921 [2020-07-21 20:10:20,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 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 20:10:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-21 20:10:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-21 20:10:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 20:10:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-21 20:10:20,732 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 135 [2020-07-21 20:10:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:20,733 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-21 20:10:20,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-21 20:10:20,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 20:10:20,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:20,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:20,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:20,950 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:20,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:20,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1779819568, now seen corresponding path program 1 times [2020-07-21 20:10:20,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:20,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [693299110] [2020-07-21 20:10:20,952 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 20:10:21,066 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:21,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:21,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:10:21,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:21,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:21,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [693299110] [2020-07-21 20:10:21,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:21,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:21,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531226767] [2020-07-21 20:10:21,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:21,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:21,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:21,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:21,206 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 7 states. [2020-07-21 20:10:22,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:22,800 INFO L93 Difference]: Finished difference Result 2259 states and 2968 transitions. [2020-07-21 20:10:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:22,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2020-07-21 20:10:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:22,817 INFO L225 Difference]: With dead ends: 2259 [2020-07-21 20:10:22,817 INFO L226 Difference]: Without dead ends: 1346 [2020-07-21 20:10:22,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-07-21 20:10:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2020-07-21 20:10:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-07-21 20:10:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1640 transitions. [2020-07-21 20:10:22,883 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1640 transitions. Word has length 141 [2020-07-21 20:10:22,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:22,884 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 1640 transitions. [2020-07-21 20:10:22,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1640 transitions. [2020-07-21 20:10:22,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:10:22,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:22,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:23,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:23,105 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:23,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:23,105 INFO L82 PathProgramCache]: Analyzing trace with hash 488288567, now seen corresponding path program 1 times [2020-07-21 20:10:23,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:23,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530388684] [2020-07-21 20:10:23,106 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 20:10:23,223 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:23,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:23,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:23,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:23,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:23,373 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:23,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530388684] [2020-07-21 20:10:23,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:23,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:23,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735790758] [2020-07-21 20:10:23,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:23,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:23,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:23,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:23,377 INFO L87 Difference]: Start difference. First operand 1346 states and 1640 transitions. Second operand 6 states. [2020-07-21 20:10:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:24,327 INFO L93 Difference]: Finished difference Result 3156 states and 3954 transitions. [2020-07-21 20:10:24,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:24,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2020-07-21 20:10:24,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:24,348 INFO L225 Difference]: With dead ends: 3156 [2020-07-21 20:10:24,348 INFO L226 Difference]: Without dead ends: 1820 [2020-07-21 20:10:24,356 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 20:10:24,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-07-21 20:10:24,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1662. [2020-07-21 20:10:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-21 20:10:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2099 transitions. [2020-07-21 20:10:24,460 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2099 transitions. Word has length 149 [2020-07-21 20:10:24,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:24,461 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2099 transitions. [2020-07-21 20:10:24,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2099 transitions. [2020-07-21 20:10:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:10:24,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:24,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:24,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:24,684 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:24,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:24,684 INFO L82 PathProgramCache]: Analyzing trace with hash 795304748, now seen corresponding path program 1 times [2020-07-21 20:10:24,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:24,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754119546] [2020-07-21 20:10:24,686 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 20:10:24,781 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:24,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:24,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:10:24,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:24,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:24,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754119546] [2020-07-21 20:10:24,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:24,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:10:24,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676918794] [2020-07-21 20:10:24,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:10:24,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:24,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:10:24,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:10:24,823 INFO L87 Difference]: Start difference. First operand 1662 states and 2099 transitions. Second operand 5 states. [2020-07-21 20:10:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:25,595 INFO L93 Difference]: Finished difference Result 4838 states and 6389 transitions. [2020-07-21 20:10:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:25,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-21 20:10:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:25,617 INFO L225 Difference]: With dead ends: 4838 [2020-07-21 20:10:25,617 INFO L226 Difference]: Without dead ends: 3186 [2020-07-21 20:10:25,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 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 20:10:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2020-07-21 20:10:25,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2994. [2020-07-21 20:10:25,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-07-21 20:10:25,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3682 transitions. [2020-07-21 20:10:25,766 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3682 transitions. Word has length 149 [2020-07-21 20:10:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:25,767 INFO L479 AbstractCegarLoop]: Abstraction has 2994 states and 3682 transitions. [2020-07-21 20:10:25,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:10:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3682 transitions. [2020-07-21 20:10:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-21 20:10:25,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:25,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:25,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:25,994 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:25,995 INFO L82 PathProgramCache]: Analyzing trace with hash -444558417, now seen corresponding path program 1 times [2020-07-21 20:10:25,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:25,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751884245] [2020-07-21 20:10:25,996 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 20:10:26,137 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:26,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:26,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:26,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:26,175 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 20:10:26,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:26,175 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751884245] [2020-07-21 20:10:26,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:26,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:26,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873823613] [2020-07-21 20:10:26,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:26,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:26,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:26,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:26,179 INFO L87 Difference]: Start difference. First operand 2994 states and 3682 transitions. Second operand 3 states. [2020-07-21 20:10:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:26,789 INFO L93 Difference]: Finished difference Result 7138 states and 8796 transitions. [2020-07-21 20:10:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:26,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-21 20:10:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:26,810 INFO L225 Difference]: With dead ends: 7138 [2020-07-21 20:10:26,810 INFO L226 Difference]: Without dead ends: 2974 [2020-07-21 20:10:26,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 20:10:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2020-07-21 20:10:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2974. [2020-07-21 20:10:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2974 states. [2020-07-21 20:10:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 3572 transitions. [2020-07-21 20:10:26,904 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 3572 transitions. Word has length 153 [2020-07-21 20:10:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:26,905 INFO L479 AbstractCegarLoop]: Abstraction has 2974 states and 3572 transitions. [2020-07-21 20:10:26,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 3572 transitions. [2020-07-21 20:10:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-21 20:10:26,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:26,915 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-07-21 20:10:27,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:27,131 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:27,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1407868924, now seen corresponding path program 1 times [2020-07-21 20:10:27,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:27,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230947440] [2020-07-21 20:10:27,133 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 20:10:27,244 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:27,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:27,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:27,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 88 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 20:10:27,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:27,422 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 78 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 20:10:27,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230947440] [2020-07-21 20:10:27,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:27,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:27,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864955867] [2020-07-21 20:10:27,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:27,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:27,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:27,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:27,426 INFO L87 Difference]: Start difference. First operand 2974 states and 3572 transitions. Second operand 6 states. [2020-07-21 20:10:27,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:27,843 INFO L93 Difference]: Finished difference Result 3757 states and 4385 transitions. [2020-07-21 20:10:27,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:10:27,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-21 20:10:27,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:27,851 INFO L225 Difference]: With dead ends: 3757 [2020-07-21 20:10:27,851 INFO L226 Difference]: Without dead ends: 1352 [2020-07-21 20:10:27,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2020-07-21 20:10:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1204. [2020-07-21 20:10:27,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1204 states. [2020-07-21 20:10:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1394 transitions. [2020-07-21 20:10:27,887 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1394 transitions. Word has length 182 [2020-07-21 20:10:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:27,887 INFO L479 AbstractCegarLoop]: Abstraction has 1204 states and 1394 transitions. [2020-07-21 20:10:27,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1394 transitions. [2020-07-21 20:10:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-07-21 20:10:27,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:27,895 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:28,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:28,109 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:28,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:28,109 INFO L82 PathProgramCache]: Analyzing trace with hash -262886545, now seen corresponding path program 1 times [2020-07-21 20:10:28,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:28,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853898438] [2020-07-21 20:10:28,110 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 20:10:28,241 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:28,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:28,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:28,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 20:10:28,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 20:10:28,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853898438] [2020-07-21 20:10:28,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:28,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:10:28,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800836096] [2020-07-21 20:10:28,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:10:28,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:28,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:10:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:28,432 INFO L87 Difference]: Start difference. First operand 1204 states and 1394 transitions. Second operand 7 states. [2020-07-21 20:10:29,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:29,593 INFO L93 Difference]: Finished difference Result 2715 states and 3188 transitions. [2020-07-21 20:10:29,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:10:29,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-07-21 20:10:29,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:29,600 INFO L225 Difference]: With dead ends: 2715 [2020-07-21 20:10:29,600 INFO L226 Difference]: Without dead ends: 1363 [2020-07-21 20:10:29,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 372 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:10:29,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2020-07-21 20:10:29,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1352. [2020-07-21 20:10:29,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-07-21 20:10:29,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1449 transitions. [2020-07-21 20:10:29,631 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1449 transitions. Word has length 187 [2020-07-21 20:10:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:29,632 INFO L479 AbstractCegarLoop]: Abstraction has 1352 states and 1449 transitions. [2020-07-21 20:10:29,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:10:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1449 transitions. [2020-07-21 20:10:29,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-21 20:10:29,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:29,636 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, 2, 2, 2, 2, 2, 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] [2020-07-21 20:10:29,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:29,851 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:29,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:29,851 INFO L82 PathProgramCache]: Analyzing trace with hash 840262598, now seen corresponding path program 1 times [2020-07-21 20:10:29,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:29,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79371708] [2020-07-21 20:10:29,852 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:29,959 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:29,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:29,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:10:29,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:30,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:30,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79371708] [2020-07-21 20:10:30,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:30,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:30,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818536065] [2020-07-21 20:10:30,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:30,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:30,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:30,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:30,122 INFO L87 Difference]: Start difference. First operand 1352 states and 1449 transitions. Second operand 6 states. [2020-07-21 20:10:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:31,114 INFO L93 Difference]: Finished difference Result 3283 states and 3522 transitions. [2020-07-21 20:10:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:10:31,115 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-21 20:10:31,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:31,116 INFO L225 Difference]: With dead ends: 3283 [2020-07-21 20:10:31,116 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:10:31,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 388 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 20:10:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:10:31,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:10:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:10:31,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:10:31,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2020-07-21 20:10:31,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:31,123 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:10:31,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:31,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:10:31,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:10:31,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:31,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:10:32,344 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 61 [2020-07-21 20:10:32,862 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-07-21 20:10:33,321 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2020-07-21 20:10:33,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:33,325 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,326 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:10:33,327 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,328 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:10:33,329 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:33,330 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 508) no Hoare annotation was computed. [2020-07-21 20:10:33,331 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:10:33,332 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:10:33,333 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:10:33,334 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,335 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:10:33,336 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:33,337 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,338 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:10:33,339 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,340 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:10:33,341 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,342 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:10:33,343 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:10:33,344 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (<= |old(~a28~0)| ~a28~0)) (.cse12 (= 1 ~a25~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a28~0 |old(~a28~0)|)) (.cse3 (= ~a11~0 |old(~a11~0)|)) (.cse4 (= ~a19~0 |old(~a19~0)|))) (let ((.cse10 (not (<= |old(~a28~0)| 10))) (.cse11 (<= ~a28~0 10)) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse8 (and .cse1 .cse2 .cse3 .cse4)) (.cse14 (not (= 1 |old(~a19~0)|))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse15 (and .cse2 .cse3 (<= ~a17~0 7) .cse4)) (.cse16 (not (<= |old(~a17~0)| 7))) (.cse17 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse12)) (.cse13 (not (= 1 |old(~a25~0)|))) (.cse6 (not (<= |old(~a17~0)| 8))) (.cse9 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a25~0 |old(~a25~0)|)) .cse6 .cse7) (or (not (<= |old(~a28~0)| 7)) .cse8 .cse6 .cse9) (or .cse10 (and .cse1 .cse3 .cse11 .cse4 .cse5 .cse12) .cse13 .cse6 .cse7) (or .cse14 .cse15 .cse16 .cse7) (or .cse14 .cse10 (and .cse1 .cse3 .cse11 .cse4 .cse5) .cse6 .cse7) (or .cse14 .cse0 .cse8 .cse6 .cse9) (or .cse14 .cse17 .cse13 .cse6 .cse7) (or .cse15 .cse16 .cse9) (or .cse17 .cse13 (not (<= 10 |old(~a28~0)|)) .cse6 .cse9)))) [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,345 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:10:33,346 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,347 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:10:33,348 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:10:33,349 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:10:33,350 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:10:33,351 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:33,352 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:33,353 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:10:33,353 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:10:33,353 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:33,353 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 20:10:33,353 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:10:33,353 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:33,353 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)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 20:10:33,354 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse4 (<= 10 ~a28~0)) (.cse8 (<= ~a11~0 0)) (.cse9 (<= ~a17~0 7)) (.cse3 (<= ~a28~0 10)) (.cse5 (= 1 ~a11~0)) (.cse10 (<= ~a28~0 9)) (.cse11 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse7) (and .cse0 .cse8 .cse9) (and .cse1 .cse2 .cse10 .cse6) (and .cse5 .cse9) (and .cse8 .cse10 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse1 .cse5 .cse11) (and .cse0 .cse1 .cse5 .cse10) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse1 .cse2 .cse11 (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse6 .cse7))) [2020-07-21 20:10:33,354 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:33,354 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:33,354 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse4 (<= 10 ~a28~0)) (.cse8 (<= ~a11~0 0)) (.cse9 (<= ~a17~0 7)) (.cse3 (<= ~a28~0 10)) (.cse5 (= 1 ~a11~0)) (.cse10 (<= ~a28~0 9)) (.cse11 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (= ~a11~0 |old(~a11~0)|)) (.cse6 (not (= 1 |old(~a25~0)|))) (.cse7 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse7) (and .cse0 .cse8 .cse9) (and .cse1 .cse2 .cse10 .cse6) (and .cse5 .cse9) (and .cse8 .cse10 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse3 .cse6 .cse7) (and .cse1 .cse5 .cse11) (and .cse0 .cse1 .cse5 .cse10) (not (<= |old(~a17~0)| 8)) (and .cse0 .cse1 .cse2 .cse11 (= ~a25~0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2 .cse6 .cse7))) [2020-07-21 20:10:33,354 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:10:33,355 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:10:33,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:10:33 BoogieIcfgContainer [2020-07-21 20:10:33,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:10:33,381 INFO L168 Benchmark]: Toolchain (without parser) took 18886.29 ms. Allocated memory was 138.9 MB in the beginning and 496.0 MB in the end (delta: 357.0 MB). Free memory was 102.8 MB in the beginning and 289.0 MB in the end (delta: -186.2 MB). Peak memory consumption was 372.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,382 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.37 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 102.4 MB in the beginning and 172.7 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,384 INFO L168 Benchmark]: Boogie Preprocessor took 105.80 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,384 INFO L168 Benchmark]: RCFGBuilder took 1295.23 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 167.8 MB in the beginning and 183.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,385 INFO L168 Benchmark]: TraceAbstraction took 16714.47 ms. Allocated memory was 239.1 MB in the beginning and 496.0 MB in the end (delta: 256.9 MB). Free memory was 182.0 MB in the beginning and 289.0 MB in the end (delta: -107.0 MB). Peak memory consumption was 351.5 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:33,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.37 ms. Allocated memory was 138.9 MB in the beginning and 205.5 MB in the end (delta: 66.6 MB). Free memory was 102.4 MB in the beginning and 172.7 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.80 ms. Allocated memory is still 205.5 MB. Free memory was 172.7 MB in the beginning and 167.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1295.23 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 167.8 MB in the beginning and 183.5 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16714.47 ms. Allocated memory was 239.1 MB in the beginning and 496.0 MB in the end (delta: 256.9 MB). Free memory was 182.0 MB in the beginning and 289.0 MB in the end (delta: -107.0 MB). Peak memory consumption was 351.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 508]: 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)) || !(\old(a28) <= 7)) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 1 == a11) && !(1 == \old(a25))) && 10 <= a28) && 1 == a25)) || ((1 == a19 && a11 <= 0) && a17 <= 7)) || (((a17 <= \old(a17) && a11 == \old(a11)) && a28 <= 9) && !(1 == \old(a25)))) || (1 == a11 && a17 <= 7)) || ((a11 <= 0 && a28 <= 9) && a17 <= 7)) || !(\old(a11) <= 0)) || ((((a17 <= \old(a17) && a11 == \old(a11)) && a28 <= 10) && !(1 == \old(a25))) && 1 == a25)) || ((a17 <= \old(a17) && 1 == a11) && a28 <= 7)) || (((1 == a19 && a17 <= \old(a17)) && 1 == a11) && a28 <= 9)) || !(\old(a17) <= 8)) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && a28 <= 7) && a25 == \old(a25))) || ((((1 == a19 && a17 <= \old(a17)) && a11 == \old(a11)) && !(1 == \old(a25))) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 837 SDtfs, 4358 SDslu, 485 SDs, 0 SdLazy, 6639 SolverSat, 1182 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2536 GetRequests, 2479 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2994occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 513 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 114 PreInvPairs, 164 NumberOfFragments, 675 HoareAnnotationTreeSize, 114 FomulaSimplifications, 2740 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2298 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1536 NumberOfCodeBlocks, 1536 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2501 ConstructedInterpolants, 0 QuantifiedInterpolants, 791765 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4012 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 761/827 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...