/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:24:02,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:24:02,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:24:02,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:24:02,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:24:02,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:24:02,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:24:02,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:24:02,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:24:02,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:24:02,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:24:02,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:24:02,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:24:02,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:24:02,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:24:02,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:24:02,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:24:02,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:24:02,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:24:02,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:24:02,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:24:02,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:24:02,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:24:02,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:24:02,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:24:02,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:24:02,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:24:02,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:24:02,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:24:02,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:24:02,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:24:02,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:24:02,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:24:02,138 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:24:02,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:24:02,138 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:24:02,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:24:02,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:24:02,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:24:02,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:24:02,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:24:02,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:24:02,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:24:02,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:24:02,140 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:24:02,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:24:02,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:24:02,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:24:02,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:24:02,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:24:02,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:24:02,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:24:02,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:24:02,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:24:02,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:24:02,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:02,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:24:02,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:24:02,143 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 -> 4 [2020-07-20 17:24:02,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:24:02,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:24:02,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:24:02,445 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:24:02,445 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:24:02,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 17:24:02,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b85b901/c9576c3b69e14afea6b3c67add6c0336/FLAG67927e23e [2020-07-20 17:24:03,119 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:24:03,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-20 17:24:03,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b85b901/c9576c3b69e14afea6b3c67add6c0336/FLAG67927e23e [2020-07-20 17:24:03,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0b85b901/c9576c3b69e14afea6b3c67add6c0336 [2020-07-20 17:24:03,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:24:03,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:24:03,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:24:03,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:24:03,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:24:03,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:24:03" (1/1) ... [2020-07-20 17:24:03,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd1c41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:03, skipping insertion in model container [2020-07-20 17:24:03,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:24:03" (1/1) ... [2020-07-20 17:24:03,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:24:03,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:24:03,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:24:03,988 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:24:04,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:24:04,118 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:24:04,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04 WrapperNode [2020-07-20 17:24:04,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:24:04,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:24:04,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:24:04,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:24:04,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... [2020-07-20 17:24:04,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:24:04,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:24:04,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:24:04,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:24:04,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:24:04,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:24:04,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:24:04,309 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:24:04,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:24:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:24:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:24:05,585 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:24:05,586 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:24:05,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:24:05 BoogieIcfgContainer [2020-07-20 17:24:05,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:24:05,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:24:05,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:24:05,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:24:05,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:24:03" (1/3) ... [2020-07-20 17:24:05,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:24:05, skipping insertion in model container [2020-07-20 17:24:05,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:24:04" (2/3) ... [2020-07-20 17:24:05,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611c97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:24:05, skipping insertion in model container [2020-07-20 17:24:05,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:24:05" (3/3) ... [2020-07-20 17:24:05,609 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-07-20 17:24:05,620 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:24:05,634 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:24:05,649 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:24:05,685 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:24:05,686 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:24:05,686 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:24:05,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:24:05,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:24:05,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:24:05,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:24:05,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:24:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 17:24:05,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 17:24:05,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:05,726 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] [2020-07-20 17:24:05,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-07-20 17:24:05,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:05,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037520569] [2020-07-20 17:24:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:05,956 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:05,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:05,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:24:05,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:06,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:06,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037520569] [2020-07-20 17:24:06,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:06,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:24:06,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749790601] [2020-07-20 17:24:06,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:24:06,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:06,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:24:06,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:06,106 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 17:24:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:07,061 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-20 17:24:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:24:07,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 17:24:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:07,101 INFO L225 Difference]: With dead ends: 547 [2020-07-20 17:24:07,101 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 17:24:07,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:07,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 17:24:07,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 17:24:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 17:24:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-20 17:24:07,238 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2020-07-20 17:24:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:07,239 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-20 17:24:07,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:24:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-20 17:24:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 17:24:07,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:07,251 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:24:07,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:07,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:07,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:07,467 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-07-20 17:24:07,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:07,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790506047] [2020-07-20 17:24:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:07,608 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:07,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:07,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:24:07,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:07,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:07,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790506047] [2020-07-20 17:24:07,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:07,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:24:07,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270542480] [2020-07-20 17:24:07,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:24:07,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:07,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:24:07,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:07,732 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 3 states. [2020-07-20 17:24:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:08,350 INFO L93 Difference]: Finished difference Result 820 states and 1199 transitions. [2020-07-20 17:24:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:24:08,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-20 17:24:08,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:08,364 INFO L225 Difference]: With dead ends: 820 [2020-07-20 17:24:08,364 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 17:24:08,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:08,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 17:24:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 413. [2020-07-20 17:24:08,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-07-20 17:24:08,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 563 transitions. [2020-07-20 17:24:08,391 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 563 transitions. Word has length 130 [2020-07-20 17:24:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:08,392 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 563 transitions. [2020-07-20 17:24:08,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:24:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 563 transitions. [2020-07-20 17:24:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 17:24:08,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:08,395 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 17:24:08,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:08,611 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:08,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-07-20 17:24:08,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:08,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988542586] [2020-07-20 17:24:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:08,765 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:08,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:08,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:24:08,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:08,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:08,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988542586] [2020-07-20 17:24:08,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:08,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:24:08,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391879840] [2020-07-20 17:24:08,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:24:08,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:08,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:24:08,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:08,853 INFO L87 Difference]: Start difference. First operand 413 states and 563 transitions. Second operand 3 states. [2020-07-20 17:24:09,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:09,499 INFO L93 Difference]: Finished difference Result 1225 states and 1703 transitions. [2020-07-20 17:24:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:24:09,499 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 17:24:09,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:09,505 INFO L225 Difference]: With dead ends: 1225 [2020-07-20 17:24:09,506 INFO L226 Difference]: Without dead ends: 818 [2020-07-20 17:24:09,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-20 17:24:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-20 17:24:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 17:24:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1082 transitions. [2020-07-20 17:24:09,553 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1082 transitions. Word has length 137 [2020-07-20 17:24:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:09,555 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1082 transitions. [2020-07-20 17:24:09,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:24:09,555 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1082 transitions. [2020-07-20 17:24:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 17:24:09,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:09,561 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] [2020-07-20 17:24:09,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:09,776 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:09,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:09,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2020-07-20 17:24:09,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:09,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216263331] [2020-07-20 17:24:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:09,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:09,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:09,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:24:09,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:09,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:09,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216263331] [2020-07-20 17:24:09,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:09,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:24:09,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63796154] [2020-07-20 17:24:09,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:24:10,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:10,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:24:10,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:10,001 INFO L87 Difference]: Start difference. First operand 818 states and 1082 transitions. Second operand 3 states. [2020-07-20 17:24:10,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:10,614 INFO L93 Difference]: Finished difference Result 2035 states and 2762 transitions. [2020-07-20 17:24:10,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:24:10,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 17:24:10,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:10,628 INFO L225 Difference]: With dead ends: 2035 [2020-07-20 17:24:10,628 INFO L226 Difference]: Without dead ends: 1223 [2020-07-20 17:24:10,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-07-20 17:24:10,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2020-07-20 17:24:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 17:24:10,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1601 transitions. [2020-07-20 17:24:10,671 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1601 transitions. Word has length 146 [2020-07-20 17:24:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:10,672 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1601 transitions. [2020-07-20 17:24:10,672 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:24:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1601 transitions. [2020-07-20 17:24:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-20 17:24:10,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:10,677 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:24:10,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:10,890 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:10,891 INFO L82 PathProgramCache]: Analyzing trace with hash 118923832, now seen corresponding path program 1 times [2020-07-20 17:24:10,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:10,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411344733] [2020-07-20 17:24:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:11,038 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:11,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:11,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:24:11,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-20 17:24:11,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:11,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411344733] [2020-07-20 17:24:11,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:11,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:24:11,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320035229] [2020-07-20 17:24:11,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:24:11,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:11,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:24:11,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:24:11,135 INFO L87 Difference]: Start difference. First operand 1223 states and 1601 transitions. Second operand 5 states. [2020-07-20 17:24:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:11,974 INFO L93 Difference]: Finished difference Result 3036 states and 4098 transitions. [2020-07-20 17:24:11,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:24:11,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-07-20 17:24:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:11,994 INFO L225 Difference]: With dead ends: 3036 [2020-07-20 17:24:11,994 INFO L226 Difference]: Without dead ends: 1819 [2020-07-20 17:24:11,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:24:12,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1819 states. [2020-07-20 17:24:12,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1819 to 1781. [2020-07-20 17:24:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-07-20 17:24:12,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2305 transitions. [2020-07-20 17:24:12,100 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2305 transitions. Word has length 174 [2020-07-20 17:24:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:12,101 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2305 transitions. [2020-07-20 17:24:12,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:24:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2305 transitions. [2020-07-20 17:24:12,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 17:24:12,115 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:12,116 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:24:12,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:12,330 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:12,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:12,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1521407610, now seen corresponding path program 1 times [2020-07-20 17:24:12,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:12,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580044871] [2020-07-20 17:24:12,332 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:12,454 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:12,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:12,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:24:12,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:12,532 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:12,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:24:12,614 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:24:12,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580044871] [2020-07-20 17:24:12,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:24:12,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:24:12,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693160369] [2020-07-20 17:24:12,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:24:12,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:12,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:24:12,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:24:12,617 INFO L87 Difference]: Start difference. First operand 1781 states and 2305 transitions. Second operand 6 states. [2020-07-20 17:24:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:13,349 INFO L93 Difference]: Finished difference Result 3894 states and 5179 transitions. [2020-07-20 17:24:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:24:13,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-20 17:24:13,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:13,368 INFO L225 Difference]: With dead ends: 3894 [2020-07-20 17:24:13,368 INFO L226 Difference]: Without dead ends: 2119 [2020-07-20 17:24:13,379 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:24:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2119 states. [2020-07-20 17:24:13,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2119 to 1666. [2020-07-20 17:24:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1666 states. [2020-07-20 17:24:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2053 transitions. [2020-07-20 17:24:13,496 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2053 transitions. Word has length 175 [2020-07-20 17:24:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:13,497 INFO L479 AbstractCegarLoop]: Abstraction has 1666 states and 2053 transitions. [2020-07-20 17:24:13,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:24:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2053 transitions. [2020-07-20 17:24:13,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-20 17:24:13,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:24:13,503 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:24:13,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:13,717 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:24:13,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:24:13,717 INFO L82 PathProgramCache]: Analyzing trace with hash 795457010, now seen corresponding path program 1 times [2020-07-20 17:24:13,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:24:13,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066919448] [2020-07-20 17:24:13,718 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 17:24:13,839 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:24:13,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:24:13,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:24:13,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:24:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 17:24:13,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:24:13,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066919448] [2020-07-20 17:24:13,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:24:13,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:24:13,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842342841] [2020-07-20 17:24:13,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:24:13,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:24:13,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:24:13,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:13,891 INFO L87 Difference]: Start difference. First operand 1666 states and 2053 transitions. Second operand 3 states. [2020-07-20 17:24:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:24:14,437 INFO L93 Difference]: Finished difference Result 4414 states and 5526 transitions. [2020-07-20 17:24:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:24:14,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-20 17:24:14,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:24:14,438 INFO L225 Difference]: With dead ends: 4414 [2020-07-20 17:24:14,438 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:24:14,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:24:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:24:14,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:24:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:24:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:24:14,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-20 17:24:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:24:14,450 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:24:14,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:24:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:24:14,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:24:14,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:24:14,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:24:15,670 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 58 [2020-07-20 17:24:15,792 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-20 17:24:15,896 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37 [2020-07-20 17:24:15,901 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:24:15,901 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-20 17:24:15,901 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:24:15,901 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 17:24:15,901 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 17:24:15,902 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 17:24:15,903 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 17:24:15,905 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,905 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,905 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,905 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,906 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,906 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,906 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 17:24:15,906 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 17:24:15,906 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 17:24:15,907 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 17:24:15,910 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,911 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,912 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,912 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 17:24:15,912 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 17:24:15,912 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 17:24:15,912 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 17:24:15,913 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 17:24:15,913 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 17:24:15,913 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 17:24:15,913 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,914 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,915 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 17:24:15,916 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 17:24:15,916 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 17:24:15,917 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 17:24:15,918 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,919 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 17:24:15,920 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 17:24:15,921 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 17:24:15,922 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 17:24:15,923 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse3 (= 1 ~a20~0)) (.cse10 (not (<= 15 |old(~a8~0)|))) (.cse12 (<= 5 ~a16~0)) (.cse8 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse5 (<= ~a8~0 13)) (.cse4 (<= ~a16~0 |old(~a16~0)|)) (.cse11 (<= ~a17~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse9 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 .cse6) .cse2 .cse7) (or (and (or .cse1 .cse8 .cse7 .cse9) (or .cse10 .cse8 .cse7 .cse9)) (and .cse11 .cse12)) (or .cse10 (and .cse4 (<= 15 ~a8~0) .cse6) .cse7) (or .cse0 .cse2 .cse9 (and .cse4 .cse5 .cse11 .cse3 .cse6)) (or .cse0 .cse10 .cse3 .cse7) (or .cse0 .cse1 .cse7 (and .cse4 .cse3 .cse6)) (or .cse10 .cse12 .cse8 .cse7) (or .cse1 .cse2 (and .cse4 .cse5 .cse6)) (or (and .cse4 .cse11 .cse6) .cse1 .cse7 .cse9))) [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 17:24:15,924 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,925 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 17:24:15,926 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 17:24:15,927 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-20 17:24:15,928 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-20 17:24:15,928 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:24:15,928 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-20 17:24:15,929 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 17:24:15,929 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 17:24:15,929 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (and .cse3 .cse4 .cse2))) [2020-07-20 17:24:15,929 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:24:15,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:24:15 BoogieIcfgContainer [2020-07-20 17:24:15,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:24:15,955 INFO L168 Benchmark]: Toolchain (without parser) took 12561.14 ms. Allocated memory was 144.7 MB in the beginning and 375.9 MB in the end (delta: 231.2 MB). Free memory was 100.5 MB in the beginning and 217.6 MB in the end (delta: -117.1 MB). Peak memory consumption was 248.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,955 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.52 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 171.1 MB in the end (delta: -71.0 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,957 INFO L168 Benchmark]: Boogie Preprocessor took 111.65 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,958 INFO L168 Benchmark]: RCFGBuilder took 1364.92 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 180.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,959 INFO L168 Benchmark]: TraceAbstraction took 10354.93 ms. Allocated memory was 237.0 MB in the beginning and 375.9 MB in the end (delta: 138.9 MB). Free memory was 179.1 MB in the beginning and 217.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 234.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:24:15,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 722.52 ms. Allocated memory was 144.7 MB in the beginning and 205.0 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 171.1 MB in the end (delta: -71.0 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.65 ms. Allocated memory is still 205.0 MB. Free memory was 171.1 MB in the beginning and 166.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1364.92 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 166.1 MB in the beginning and 180.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10354.93 ms. Allocated memory was 237.0 MB in the beginning and 375.9 MB in the end (delta: 138.9 MB). Free memory was 179.1 MB in the beginning and 217.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 234.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || ((a16 <= 5 && 1 == a21) && 1 == a20)) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || !(\old(a16) <= 5)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || !(5 <= \old(a16))) || !(1 == \old(a21))) || ((a8 <= 13 && a17 <= 0) && 1 == a20) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 604 SDtfs, 1062 SDslu, 134 SDs, 0 SdLazy, 2859 SolverSat, 572 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1236 GetRequests, 1218 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1781occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 626 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 112 NumberOfFragments, 442 HoareAnnotationTreeSize, 72 FomulaSimplifications, 2315 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 961 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1061 NumberOfCodeBlocks, 1061 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1228 ConstructedInterpolants, 0 QuantifiedInterpolants, 427020 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2808 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 286/290 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...