/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 NUM_VARIABLES --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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:34:11,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:34:11,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:34:11,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 16:34:11,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:34:11,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:34:11,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:34:11,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:34:11,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:34:11,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:34:11,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:34:12,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:34:12,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:34:12,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:34:12,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:34:12,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:34:12,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 16:34:12,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:34:12,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:34:12,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:34:12,027 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 16:34:12,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:34:12,064 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:34:12,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:34:12,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:34:12,066 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:34:12,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:34:12,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:34:12,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:34:12,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:34:12,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:34:12,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:34:12,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:34:12,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:34:12,070 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:34:12,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:34:12,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:34:12,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:34:12,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:34:12,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:34:12,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:34:12,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:34:12,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:12,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:34:12,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:34:12,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:34:12,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:34:12,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:12,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:34:12,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:34:12,074 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 -> NUM_VARIABLES 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 16:34:12,348 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:34:12,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:34:12,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:34:12,366 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:34:12,366 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:34:12,367 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 16:34:12,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d57bd49c/ea0e91e2ef76471f96b459a5f3059c73/FLAGbaebd3082 [2020-07-21 16:34:12,936 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:34:12,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label26.c [2020-07-21 16:34:12,951 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d57bd49c/ea0e91e2ef76471f96b459a5f3059c73/FLAGbaebd3082 [2020-07-21 16:34:13,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d57bd49c/ea0e91e2ef76471f96b459a5f3059c73 [2020-07-21 16:34:13,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:34:13,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:34:13,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:13,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:34:13,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:34:13,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:13" (1/1) ... [2020-07-21 16:34:13,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bf130a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:13, skipping insertion in model container [2020-07-21 16:34:13,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:13" (1/1) ... [2020-07-21 16:34:13,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:34:13,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:34:13,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:13,886 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:34:14,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:14,061 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:34:14,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14 WrapperNode [2020-07-21 16:34:14,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:14,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:34:14,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:34:14,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:34:14,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (1/1) ... [2020-07-21 16:34:14,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:34:14,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:34:14,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:34:14,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:34:14,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (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 16:34:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:34:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:34:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:34:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:34:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:34:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:34:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:34:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:34:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:34:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:34:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:34:15,532 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:34:15,533 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:34:15,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:15 BoogieIcfgContainer [2020-07-21 16:34:15,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:34:15,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:34:15,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:34:15,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:34:15,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:34:13" (1/3) ... [2020-07-21 16:34:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25abf917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:15, skipping insertion in model container [2020-07-21 16:34:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:14" (2/3) ... [2020-07-21 16:34:15,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25abf917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:15, skipping insertion in model container [2020-07-21 16:34:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:15" (3/3) ... [2020-07-21 16:34:15,559 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label26.c [2020-07-21 16:34:15,573 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:34:15,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:34:15,606 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:34:15,645 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:34:15,646 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:34:15,646 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:34:15,647 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:34:15,647 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:34:15,647 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:34:15,648 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:34:15,648 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:34:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:34:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 16:34:15,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:15,700 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, 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 16:34:15,700 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:15,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash 2085668238, now seen corresponding path program 1 times [2020-07-21 16:34:15,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:15,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194629986] [2020-07-21 16:34:15,718 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 16:34:15,907 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:15,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:15,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:15,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:16,044 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 16:34:16,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:16,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194629986] [2020-07-21 16:34:16,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:16,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:16,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378126406] [2020-07-21 16:34:16,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:16,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:16,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:16,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:16,071 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:34:16,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:16,988 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 16:34:16,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:16,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-07-21 16:34:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:17,008 INFO L225 Difference]: With dead ends: 615 [2020-07-21 16:34:17,009 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 16:34:17,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 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 16:34:17,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 16:34:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 16:34:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 16:34:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 16:34:17,118 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 142 [2020-07-21 16:34:17,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:17,120 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 16:34:17,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:17,120 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 16:34:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 16:34:17,128 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:17,129 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:17,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:17,337 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:17,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2119639181, now seen corresponding path program 1 times [2020-07-21 16:34:17,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:17,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140460061] [2020-07-21 16:34:17,339 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 16:34:17,481 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:17,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:17,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:17,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:17,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:17,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140460061] [2020-07-21 16:34:17,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:17,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:17,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245607398] [2020-07-21 16:34:17,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:17,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:17,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:17,557 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 16:34:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:18,196 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 16:34:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:18,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2020-07-21 16:34:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:18,204 INFO L225 Difference]: With dead ends: 919 [2020-07-21 16:34:18,204 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 16:34:18,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 16:34:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 16:34:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 16:34:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 16:34:18,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 16:34:18,232 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 157 [2020-07-21 16:34:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:18,232 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 16:34:18,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 16:34:18,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-21 16:34:18,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:18,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:18,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:18,450 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:18,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1005880998, now seen corresponding path program 1 times [2020-07-21 16:34:18,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:18,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524380090] [2020-07-21 16:34:18,453 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 16:34:18,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:18,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:18,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:18,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:18,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:18,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524380090] [2020-07-21 16:34:18,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:18,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:18,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135679607] [2020-07-21 16:34:18,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:18,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:18,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:18,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:18,685 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 16:34:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:19,344 INFO L93 Difference]: Finished difference Result 1359 states and 1917 transitions. [2020-07-21 16:34:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:19,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-21 16:34:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:19,353 INFO L225 Difference]: With dead ends: 1359 [2020-07-21 16:34:19,353 INFO L226 Difference]: Without dead ends: 903 [2020-07-21 16:34:19,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 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 16:34:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-07-21 16:34:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 902. [2020-07-21 16:34:19,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-07-21 16:34:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1159 transitions. [2020-07-21 16:34:19,416 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1159 transitions. Word has length 164 [2020-07-21 16:34:19,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:19,417 INFO L479 AbstractCegarLoop]: Abstraction has 902 states and 1159 transitions. [2020-07-21 16:34:19,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1159 transitions. [2020-07-21 16:34:19,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 16:34:19,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:19,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:19,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:19,636 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:19,637 INFO L82 PathProgramCache]: Analyzing trace with hash -315093218, now seen corresponding path program 1 times [2020-07-21 16:34:19,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:19,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1756786686] [2020-07-21 16:34:19,638 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 16:34:19,737 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:19,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:19,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:19,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:19,793 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:19,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:19,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1756786686] [2020-07-21 16:34:19,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:19,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:19,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053892076] [2020-07-21 16:34:19,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:19,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:19,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:19,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:19,797 INFO L87 Difference]: Start difference. First operand 902 states and 1159 transitions. Second operand 3 states. [2020-07-21 16:34:20,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:20,448 INFO L93 Difference]: Finished difference Result 2236 states and 2978 transitions. [2020-07-21 16:34:20,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:20,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-07-21 16:34:20,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:20,463 INFO L225 Difference]: With dead ends: 2236 [2020-07-21 16:34:20,463 INFO L226 Difference]: Without dead ends: 1340 [2020-07-21 16:34:20,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 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 16:34:20,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2020-07-21 16:34:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1194. [2020-07-21 16:34:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-21 16:34:20,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1490 transitions. [2020-07-21 16:34:20,508 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1490 transitions. Word has length 168 [2020-07-21 16:34:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:20,509 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1490 transitions. [2020-07-21 16:34:20,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1490 transitions. [2020-07-21 16:34:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-21 16:34:20,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:20,515 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:20,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:20,729 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:20,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1336045319, now seen corresponding path program 1 times [2020-07-21 16:34:20,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:20,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311371309] [2020-07-21 16:34:20,731 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 16:34:20,852 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:20,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:20,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:20,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:20,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:21,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311371309] [2020-07-21 16:34:21,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:21,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:21,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650945516] [2020-07-21 16:34:21,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:21,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:21,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:21,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:21,065 INFO L87 Difference]: Start difference. First operand 1194 states and 1490 transitions. Second operand 7 states. [2020-07-21 16:34:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:22,736 INFO L93 Difference]: Finished difference Result 3570 states and 4728 transitions. [2020-07-21 16:34:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:22,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-07-21 16:34:22,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:22,749 INFO L225 Difference]: With dead ends: 3570 [2020-07-21 16:34:22,749 INFO L226 Difference]: Without dead ends: 2382 [2020-07-21 16:34:22,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2020-07-21 16:34:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2236. [2020-07-21 16:34:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2236 states. [2020-07-21 16:34:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2800 transitions. [2020-07-21 16:34:22,822 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2800 transitions. Word has length 181 [2020-07-21 16:34:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:22,822 INFO L479 AbstractCegarLoop]: Abstraction has 2236 states and 2800 transitions. [2020-07-21 16:34:22,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2800 transitions. [2020-07-21 16:34:22,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-21 16:34:22,831 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:22,831 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:23,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:23,046 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:23,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:23,046 INFO L82 PathProgramCache]: Analyzing trace with hash 441214513, now seen corresponding path program 1 times [2020-07-21 16:34:23,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:23,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854785457] [2020-07-21 16:34:23,047 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 16:34:23,160 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:23,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:23,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:23,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:23,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:23,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854785457] [2020-07-21 16:34:23,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:23,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:23,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393277124] [2020-07-21 16:34:23,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:23,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:23,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:23,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:23,344 INFO L87 Difference]: Start difference. First operand 2236 states and 2800 transitions. Second operand 7 states. [2020-07-21 16:34:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:24,300 INFO L93 Difference]: Finished difference Result 5225 states and 6791 transitions. [2020-07-21 16:34:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:24,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-07-21 16:34:24,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:24,320 INFO L225 Difference]: With dead ends: 5225 [2020-07-21 16:34:24,320 INFO L226 Difference]: Without dead ends: 2999 [2020-07-21 16:34:24,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2020-07-21 16:34:24,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2270. [2020-07-21 16:34:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-07-21 16:34:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2867 transitions. [2020-07-21 16:34:24,489 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2867 transitions. Word has length 193 [2020-07-21 16:34:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:24,489 INFO L479 AbstractCegarLoop]: Abstraction has 2270 states and 2867 transitions. [2020-07-21 16:34:24,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2867 transitions. [2020-07-21 16:34:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 16:34:24,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:24,499 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:24,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:24,714 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:24,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:24,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2102913996, now seen corresponding path program 1 times [2020-07-21 16:34:24,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:24,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892005945] [2020-07-21 16:34:24,716 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 16:34:24,837 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:24,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:24,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:24,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-07-21 16:34:24,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:24,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892005945] [2020-07-21 16:34:24,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:24,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:24,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470437559] [2020-07-21 16:34:24,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:24,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:24,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:24,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:24,905 INFO L87 Difference]: Start difference. First operand 2270 states and 2867 transitions. Second operand 3 states. [2020-07-21 16:34:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:25,417 INFO L93 Difference]: Finished difference Result 4100 states and 5144 transitions. [2020-07-21 16:34:25,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:25,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-07-21 16:34:25,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:25,431 INFO L225 Difference]: With dead ends: 4100 [2020-07-21 16:34:25,431 INFO L226 Difference]: Without dead ends: 2270 [2020-07-21 16:34:25,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 199 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 16:34:25,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2020-07-21 16:34:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2124. [2020-07-21 16:34:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-07-21 16:34:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2561 transitions. [2020-07-21 16:34:25,506 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2561 transitions. Word has length 201 [2020-07-21 16:34:25,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:25,507 INFO L479 AbstractCegarLoop]: Abstraction has 2124 states and 2561 transitions. [2020-07-21 16:34:25,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2561 transitions. [2020-07-21 16:34:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 16:34:25,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:25,515 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 16:34:25,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:25,729 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1557426684, now seen corresponding path program 1 times [2020-07-21 16:34:25,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:25,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595354442] [2020-07-21 16:34:25,731 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 16:34:25,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:25,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:25,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:25,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:25,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:26,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595354442] [2020-07-21 16:34:26,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:26,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:26,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922715989] [2020-07-21 16:34:26,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:26,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:26,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:26,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:26,046 INFO L87 Difference]: Start difference. First operand 2124 states and 2561 transitions. Second operand 6 states. [2020-07-21 16:34:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:26,814 INFO L93 Difference]: Finished difference Result 4272 states and 5278 transitions. [2020-07-21 16:34:26,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:26,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-07-21 16:34:26,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:26,826 INFO L225 Difference]: With dead ends: 4272 [2020-07-21 16:34:26,827 INFO L226 Difference]: Without dead ends: 2158 [2020-07-21 16:34:26,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 438 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 16:34:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-07-21 16:34:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2128. [2020-07-21 16:34:26,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-07-21 16:34:26,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2455 transitions. [2020-07-21 16:34:26,897 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2455 transitions. Word has length 221 [2020-07-21 16:34:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:26,898 INFO L479 AbstractCegarLoop]: Abstraction has 2128 states and 2455 transitions. [2020-07-21 16:34:26,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2455 transitions. [2020-07-21 16:34:26,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 16:34:26,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:26,906 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 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, 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 16:34:27,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:27,121 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:27,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:27,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1374694561, now seen corresponding path program 1 times [2020-07-21 16:34:27,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:27,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741584377] [2020-07-21 16:34:27,122 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 16:34:27,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:27,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:27,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:27,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 16:34:27,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:27,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741584377] [2020-07-21 16:34:27,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:27,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:27,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522129862] [2020-07-21 16:34:27,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:27,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:27,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:27,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:27,290 INFO L87 Difference]: Start difference. First operand 2128 states and 2455 transitions. Second operand 5 states. [2020-07-21 16:34:27,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:27,752 INFO L93 Difference]: Finished difference Result 4117 states and 4884 transitions. [2020-07-21 16:34:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:34:27,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-07-21 16:34:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:27,769 INFO L225 Difference]: With dead ends: 4117 [2020-07-21 16:34:27,769 INFO L226 Difference]: Without dead ends: 1999 [2020-07-21 16:34:27,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-21 16:34:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1961. [2020-07-21 16:34:27,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1961 states. [2020-07-21 16:34:27,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2198 transitions. [2020-07-21 16:34:27,827 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2198 transitions. Word has length 235 [2020-07-21 16:34:27,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:27,828 INFO L479 AbstractCegarLoop]: Abstraction has 1961 states and 2198 transitions. [2020-07-21 16:34:27,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2198 transitions. [2020-07-21 16:34:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-21 16:34:27,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:27,836 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, 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, 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 16:34:28,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:28,051 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:28,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1537639004, now seen corresponding path program 1 times [2020-07-21 16:34:28,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:28,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902986330] [2020-07-21 16:34:28,053 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 16:34:28,209 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:28,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:28,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:28,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 62 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 16:34:28,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 101 proven. 22 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 16:34:28,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902986330] [2020-07-21 16:34:28,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:28,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:28,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679139841] [2020-07-21 16:34:28,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:28,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:28,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:28,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:28,455 INFO L87 Difference]: Start difference. First operand 1961 states and 2198 transitions. Second operand 6 states. [2020-07-21 16:34:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:29,182 INFO L93 Difference]: Finished difference Result 3484 states and 3879 transitions. [2020-07-21 16:34:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:29,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2020-07-21 16:34:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:29,189 INFO L225 Difference]: With dead ends: 3484 [2020-07-21 16:34:29,190 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 16:34:29,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 482 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 16:34:29,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 16:34:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1803. [2020-07-21 16:34:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2020-07-21 16:34:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 1954 transitions. [2020-07-21 16:34:29,236 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 1954 transitions. Word has length 243 [2020-07-21 16:34:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:29,237 INFO L479 AbstractCegarLoop]: Abstraction has 1803 states and 1954 transitions. [2020-07-21 16:34:29,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 1954 transitions. [2020-07-21 16:34:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-07-21 16:34:29,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:29,245 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:34:29,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:29,459 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:29,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:29,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1660093140, now seen corresponding path program 1 times [2020-07-21 16:34:29,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:29,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856345722] [2020-07-21 16:34:29,460 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:29,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:29,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:29,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:29,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:29,745 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 16:34:29,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 16:34:29,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856345722] [2020-07-21 16:34:29,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:29,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:29,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351460211] [2020-07-21 16:34:29,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:29,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:29,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:29,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:29,860 INFO L87 Difference]: Start difference. First operand 1803 states and 1954 transitions. Second operand 6 states. [2020-07-21 16:34:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:30,661 INFO L93 Difference]: Finished difference Result 4188 states and 4550 transitions. [2020-07-21 16:34:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:34:30,661 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 247 [2020-07-21 16:34:30,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:30,669 INFO L225 Difference]: With dead ends: 4188 [2020-07-21 16:34:30,669 INFO L226 Difference]: Without dead ends: 1807 [2020-07-21 16:34:30,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 490 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 16:34:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-07-21 16:34:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1363. [2020-07-21 16:34:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-07-21 16:34:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1441 transitions. [2020-07-21 16:34:30,709 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1441 transitions. Word has length 247 [2020-07-21 16:34:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:30,709 INFO L479 AbstractCegarLoop]: Abstraction has 1363 states and 1441 transitions. [2020-07-21 16:34:30,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1441 transitions. [2020-07-21 16:34:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 16:34:30,715 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:30,715 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:30,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:30,931 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:30,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:30,931 INFO L82 PathProgramCache]: Analyzing trace with hash 246093775, now seen corresponding path program 1 times [2020-07-21 16:34:30,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:30,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39235946] [2020-07-21 16:34:30,932 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:31,162 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:31,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:31,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:31,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-07-21 16:34:31,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 165 proven. 36 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 16:34:31,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39235946] [2020-07-21 16:34:31,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:31,357 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:31,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105543126] [2020-07-21 16:34:31,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:31,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:31,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:31,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:31,358 INFO L87 Difference]: Start difference. First operand 1363 states and 1441 transitions. Second operand 6 states. [2020-07-21 16:34:32,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:32,198 INFO L93 Difference]: Finished difference Result 2737 states and 2911 transitions. [2020-07-21 16:34:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:32,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 282 [2020-07-21 16:34:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:32,203 INFO L225 Difference]: With dead ends: 2737 [2020-07-21 16:34:32,203 INFO L226 Difference]: Without dead ends: 1380 [2020-07-21 16:34:32,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:34:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-07-21 16:34:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1367. [2020-07-21 16:34:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-21 16:34:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1429 transitions. [2020-07-21 16:34:32,232 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1429 transitions. Word has length 282 [2020-07-21 16:34:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:32,232 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1429 transitions. [2020-07-21 16:34:32,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1429 transitions. [2020-07-21 16:34:32,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-07-21 16:34:32,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:32,240 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:32,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:32,453 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:32,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1557581639, now seen corresponding path program 1 times [2020-07-21 16:34:32,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:32,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107621523] [2020-07-21 16:34:32,454 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:32,639 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:32,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:32,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:32,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2020-07-21 16:34:32,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:32,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107621523] [2020-07-21 16:34:32,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:32,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:32,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958252209] [2020-07-21 16:34:32,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:32,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:32,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:32,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:32,721 INFO L87 Difference]: Start difference. First operand 1367 states and 1429 transitions. Second operand 3 states. [2020-07-21 16:34:33,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:33,273 INFO L93 Difference]: Finished difference Result 3302 states and 3466 transitions. [2020-07-21 16:34:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:33,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2020-07-21 16:34:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:33,275 INFO L225 Difference]: With dead ends: 3302 [2020-07-21 16:34:33,276 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:34:33,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 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 16:34:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:34:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:34:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:34:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:34:33,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-07-21 16:34:33,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:33,287 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:34:33,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:34:33,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:34:33,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:33,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:34:35,145 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2020-07-21 16:34:35,502 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-21 16:34:35,834 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-07-21 16:34:35,838 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:35,839 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)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0)) [2020-07-21 16:34:35,839 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:35,839 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,839 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:34:35,840 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:35,841 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:34:35,842 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:35,843 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,844 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 580) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:35,845 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:34:35,846 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:34:35,847 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:34:35,848 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,849 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:34:35,850 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:35,851 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,852 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:34:35,853 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,854 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:34:35,855 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:34:35,856 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:34:35,857 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:34:35,858 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:34:35,859 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:34:35,859 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,859 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,859 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,859 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 |old(~a17~0)|)) (.cse17 (<= ~a28~0 9)) (.cse11 (= ~a19~0 |old(~a19~0)|)) (.cse12 (<= |old(~a28~0)| ~a28~0))) (let ((.cse3 (and .cse8 .cse17 .cse11 .cse12)) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse14 (not (<= |old(~a28~0)| 8))) (.cse0 (not (<= |old(~a28~0)| 9))) (.cse9 (= 1 ~a11~0)) (.cse13 (not (= 1 |old(~a11~0)|))) (.cse6 (not (<= |old(~a28~0)| 10))) (.cse16 (<= ~a17~0 8)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (<= 10 |old(~a28~0)|))) (.cse19 (<= 8 ~a17~0)) (.cse20 (not (<= 8 |old(~a17~0)|))) (.cse1 (not (<= |old(~a19~0)| 0))) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse15 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (not (<= |old(~a28~0)| 7))) (.cse5 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse3) (or .cse4 .cse6 .cse2 .cse7 (and .cse8 .cse9 .cse10 .cse11 .cse12) .cse13) (or .cse14 (and .cse15 .cse16 .cse11 .cse12) .cse1 .cse5) (or .cse4 (not (<= 9 |old(~a28~0)|)) .cse9 .cse0 .cse5 .cse13) (or .cse4 .cse14 (<= ~a28~0 8) .cse5) (or .cse6 .cse1 .cse7 .cse5 (and .cse8 .cse10 .cse11 .cse12)) (or .cse4 (not (<= 11 |old(~a28~0)|)) .cse5 (and .cse8 .cse15 .cse11 .cse12)) (or (and .cse9 .cse16 .cse17 .cse11 .cse12) .cse0 .cse1 .cse5 .cse13) (or .cse4 .cse9 .cse18 .cse5 .cse13) (or .cse4 .cse6 (and .cse16 .cse19 .cse10 .cse11 .cse12) .cse20 .cse7 .cse5) (or .cse18 .cse19 .cse20 .cse1 .cse5) (or .cse4 .cse15 .cse18 .cse5)))) [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:34:35,860 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,861 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:34:35,862 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:34:35,863 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:34:35,864 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:34:35,865 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:35,866 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-21 16:34:35,866 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:34:35,866 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:35,867 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a17~0)| 8)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0))) [2020-07-21 16:34:35,867 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-21 16:34:35,867 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:35,867 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:35,867 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse5 (= 1 ~a11~0)) (.cse3 (<= ~a17~0 7)) (.cse0 (= 1 ~a19~0)) (.cse2 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse4 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse4) (and .cse0 .cse5 .cse3) (not (<= |old(~a28~0)| 7)) (and .cse1 (<= ~a28~0 10) (<= 10 ~a28~0) .cse4) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= 11 ~a28~0)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a28~0 8) .cse4) (not (<= |old(~a17~0)| 8)))) [2020-07-21 16:34:35,867 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:34:35,867 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:34:35,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:34:35 BoogieIcfgContainer [2020-07-21 16:34:35,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:34:35,907 INFO L168 Benchmark]: Toolchain (without parser) took 22644.02 ms. Allocated memory was 144.7 MB in the beginning and 582.5 MB in the end (delta: 437.8 MB). Free memory was 101.4 MB in the beginning and 349.9 MB in the end (delta: -248.4 MB). Peak memory consumption was 456.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:35,907 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 16:34:35,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.49 ms. Allocated memory was 144.7 MB in the beginning and 207.6 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 173.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:35,915 INFO L168 Benchmark]: Boogie Preprocessor took 148.32 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 168.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:35,919 INFO L168 Benchmark]: RCFGBuilder took 1333.00 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 178.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:35,920 INFO L168 Benchmark]: TraceAbstraction took 20358.33 ms. Allocated memory was 237.0 MB in the beginning and 582.5 MB in the end (delta: 345.5 MB). Free memory was 176.6 MB in the beginning and 349.9 MB in the end (delta: -173.3 MB). Peak memory consumption was 439.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:35,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.49 ms. Allocated memory was 144.7 MB in the beginning and 207.6 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 173.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.32 ms. Allocated memory is still 207.6 MB. Free memory was 173.6 MB in the beginning and 168.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1333.00 ms. Allocated memory was 207.6 MB in the beginning and 237.0 MB in the end (delta: 29.4 MB). Free memory was 168.7 MB in the beginning and 178.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20358.33 ms. Allocated memory was 237.0 MB in the beginning and 582.5 MB in the end (delta: 345.5 MB). Free memory was 176.6 MB in the beginning and 349.9 MB in the end (delta: -173.3 MB). Peak memory consumption was 439.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 580]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || ((a28 <= 9 && a17 <= 7) && a19 <= 0)) || (((1 == a11 && a17 <= 8) && a28 <= 9) && a19 <= 0)) || ((1 == a19 && 1 == a11) && a17 <= 7)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 <= 0)) || !(8 <= \old(a17))) || ((1 == a19 && a17 <= 8) && 11 <= a28)) || ((1 == a19 && a17 <= 8) && a28 <= 9)) || ((a17 <= 8 && a28 <= 8) && a19 <= 0)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.8s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1322 SDtfs, 3496 SDslu, 600 SDs, 0 SdLazy, 7871 SolverSat, 1263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4123 GetRequests, 4063 SyntacticMatches, 8 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2270occurred 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: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1843 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 139 PreInvPairs, 175 NumberOfFragments, 604 HoareAnnotationTreeSize, 139 FomulaSimplifications, 4120 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3062 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2739 NumberOfCodeBlocks, 2739 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4087 ConstructedInterpolants, 0 QuantifiedInterpolants, 1709871 SizeOfPredicates, 17 NumberOfNonLiveVariables, 6024 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 1826/1904 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...