/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:04:56,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:04:56,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:04:56,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:04:56,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:04:56,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:04:56,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:04:56,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:04:56,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:04:56,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:04:56,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:04:56,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:04:56,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:04:56,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:04:56,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:04:56,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:04:56,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:04:56,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:04:56,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:04:56,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:04:56,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:04:56,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:04:56,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:04:56,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:04:56,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:04:56,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:04:56,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:04:56,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:04:56,107 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 22:04:56,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:04:56,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:04:56,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:04:56,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:04:56,137 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:04:56,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:04:56,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:04:56,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:04:56,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:04:56,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:04:56,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:04:56,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:04:56,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:04:56,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:04:56,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:04:56,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:04:56,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:04:56,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:04:56,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:04:56,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:04:56,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:04:56,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:04:56,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:04:56,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:04:56,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:04:56,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:04:56,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:04:56,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:04:56,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:04:56,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:04:56,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:04:56,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:04:56,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:04:56,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:04:56,477 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:04:56,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-20 22:04:56,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a8cbbaa/5d0f69768397427a8ec9195656e94c0e/FLAG30ce26610 [2020-07-20 22:04:57,130 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:04:57,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-20 22:04:57,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a8cbbaa/5d0f69768397427a8ec9195656e94c0e/FLAG30ce26610 [2020-07-20 22:04:57,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a8cbbaa/5d0f69768397427a8ec9195656e94c0e [2020-07-20 22:04:57,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:04:57,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:04:57,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:57,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:04:57,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:04:57,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:57" (1/1) ... [2020-07-20 22:04:57,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c24edc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:57, skipping insertion in model container [2020-07-20 22:04:57,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:04:57" (1/1) ... [2020-07-20 22:04:57,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:04:57,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:04:57,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:57,886 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:04:58,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:04:58,178 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:04:58,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58 WrapperNode [2020-07-20 22:04:58,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:04:58,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:04:58,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:04:58,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:04:58,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (1/1) ... [2020-07-20 22:04:58,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:04:58,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:04:58,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:04:58,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:04:58,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (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 22:04:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:04:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:04:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 22:04:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:04:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 22:04:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:04:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 22:04:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 22:04:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:04:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:04:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:04:59,568 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:04:59,569 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 22:04:59,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:59 BoogieIcfgContainer [2020-07-20 22:04:59,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:04:59,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:04:59,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:04:59,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:04:59,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:04:57" (1/3) ... [2020-07-20 22:04:59,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1b3b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:59, skipping insertion in model container [2020-07-20 22:04:59,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:04:58" (2/3) ... [2020-07-20 22:04:59,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1b3b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:04:59, skipping insertion in model container [2020-07-20 22:04:59,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:04:59" (3/3) ... [2020-07-20 22:04:59,594 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2020-07-20 22:04:59,606 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:04:59,619 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:04:59,634 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:04:59,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:04:59,675 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:04:59,675 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:04:59,675 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:04:59,676 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:04:59,676 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:04:59,676 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:04:59,676 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:04:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 22:04:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 22:04:59,725 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:04:59,726 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, 1, 1, 1, 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 22:04:59,727 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:04:59,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:04:59,733 INFO L82 PathProgramCache]: Analyzing trace with hash -421614983, now seen corresponding path program 1 times [2020-07-20 22:04:59,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:04:59,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088875924] [2020-07-20 22:04:59,743 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 22:04:59,940 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:04:59,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:04:59,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:04:59,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:00,086 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 22:05:00,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:00,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088875924] [2020-07-20 22:05:00,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:00,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:00,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763465255] [2020-07-20 22:05:00,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:00,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:00,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:00,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:00,120 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 22:05:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:01,017 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 22:05:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:01,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-20 22:05:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:01,037 INFO L225 Difference]: With dead ends: 615 [2020-07-20 22:05:01,038 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 22:05:01,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 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 22:05:01,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 22:05:01,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 22:05:01,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 22:05:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 22:05:01,129 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 147 [2020-07-20 22:05:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:01,133 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 22:05:01,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:01,136 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 22:05:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-20 22:05:01,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:01,149 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:01,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:01,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:01,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:01,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1468794956, now seen corresponding path program 1 times [2020-07-20 22:05:01,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:01,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311468455] [2020-07-20 22:05:01,366 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 22:05:01,501 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:01,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:01,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:01,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:01,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:01,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311468455] [2020-07-20 22:05:01,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:01,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:01,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111939918] [2020-07-20 22:05:01,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:01,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:01,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:01,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:01,570 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-20 22:05:02,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:02,218 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-20 22:05:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:02,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-07-20 22:05:02,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:02,239 INFO L225 Difference]: With dead ends: 919 [2020-07-20 22:05:02,239 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 22:05:02,241 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 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 22:05:02,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 22:05:02,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-20 22:05:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-20 22:05:02,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-20 22:05:02,304 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 162 [2020-07-20 22:05:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:02,305 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-20 22:05:02,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-20 22:05:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-20 22:05:02,315 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:02,315 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:02,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:02,516 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:02,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:02,518 INFO L82 PathProgramCache]: Analyzing trace with hash -178268063, now seen corresponding path program 1 times [2020-07-20 22:05:02,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:02,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955118487] [2020-07-20 22:05:02,519 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 22:05:02,664 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:02,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:02,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:02,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:02,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:02,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955118487] [2020-07-20 22:05:02,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:02,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:02,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779656281] [2020-07-20 22:05:02,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:02,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:02,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:02,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:02,734 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-20 22:05:03,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:03,429 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-20 22:05:03,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:03,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-20 22:05:03,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:03,437 INFO L225 Difference]: With dead ends: 1209 [2020-07-20 22:05:03,438 INFO L226 Difference]: Without dead ends: 753 [2020-07-20 22:05:03,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 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 22:05:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-20 22:05:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-20 22:05:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-20 22:05:03,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-20 22:05:03,465 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 169 [2020-07-20 22:05:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:03,466 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-20 22:05:03,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-20 22:05:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-20 22:05:03,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:03,471 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:03,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:03,685 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:03,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:03,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1977015017, now seen corresponding path program 1 times [2020-07-20 22:05:03,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:03,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791278499] [2020-07-20 22:05:03,688 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 22:05:03,791 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:03,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:03,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:03,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:03,842 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 22:05:03,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:03,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791278499] [2020-07-20 22:05:03,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:03,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:03,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613642991] [2020-07-20 22:05:03,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:03,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:03,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:03,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:03,845 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states. [2020-07-20 22:05:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:04,518 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions. [2020-07-20 22:05:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:04,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-07-20 22:05:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:04,524 INFO L225 Difference]: With dead ends: 1505 [2020-07-20 22:05:04,524 INFO L226 Difference]: Without dead ends: 902 [2020-07-20 22:05:04,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 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 22:05:04,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-20 22:05:04,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756. [2020-07-20 22:05:04,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-20 22:05:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions. [2020-07-20 22:05:04,553 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 173 [2020-07-20 22:05:04,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:04,554 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions. [2020-07-20 22:05:04,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions. [2020-07-20 22:05:04,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-20 22:05:04,558 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:04,558 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:04,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:04,772 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:04,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:04,773 INFO L82 PathProgramCache]: Analyzing trace with hash -347277386, now seen corresponding path program 1 times [2020-07-20 22:05:04,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:04,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336013078] [2020-07-20 22:05:04,774 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 22:05:04,884 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:04,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:04,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:04,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:04,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:05,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336013078] [2020-07-20 22:05:05,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:05,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:05,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475480221] [2020-07-20 22:05:05,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:05,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:05,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:05,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:05,038 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states. [2020-07-20 22:05:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:06,014 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions. [2020-07-20 22:05:06,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:05:06,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-20 22:05:06,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:06,023 INFO L225 Difference]: With dead ends: 1824 [2020-07-20 22:05:06,023 INFO L226 Difference]: Without dead ends: 1074 [2020-07-20 22:05:06,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 390 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:05:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-07-20 22:05:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 920. [2020-07-20 22:05:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-07-20 22:05:06,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1204 transitions. [2020-07-20 22:05:06,078 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1204 transitions. Word has length 198 [2020-07-20 22:05:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:06,079 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1204 transitions. [2020-07-20 22:05:06,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:05:06,079 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1204 transitions. [2020-07-20 22:05:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 22:05:06,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:06,091 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:06,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:06,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:06,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:06,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1272202501, now seen corresponding path program 1 times [2020-07-20 22:05:06,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:06,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585234057] [2020-07-20 22:05:06,307 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 22:05:06,426 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:06,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:06,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:05:06,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 22:05:06,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-20 22:05:06,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585234057] [2020-07-20 22:05:06,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:06,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 22:05:06,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393052379] [2020-07-20 22:05:06,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 22:05:06,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 22:05:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:06,579 INFO L87 Difference]: Start difference. First operand 920 states and 1204 transitions. Second operand 7 states. [2020-07-20 22:05:08,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:08,165 INFO L93 Difference]: Finished difference Result 3366 states and 4682 transitions. [2020-07-20 22:05:08,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 22:05:08,165 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-20 22:05:08,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:08,185 INFO L225 Difference]: With dead ends: 3366 [2020-07-20 22:05:08,185 INFO L226 Difference]: Without dead ends: 2452 [2020-07-20 22:05:08,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:05:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-07-20 22:05:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2444. [2020-07-20 22:05:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2020-07-20 22:05:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3109 transitions. [2020-07-20 22:05:08,309 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3109 transitions. Word has length 206 [2020-07-20 22:05:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:08,309 INFO L479 AbstractCegarLoop]: Abstraction has 2444 states and 3109 transitions. [2020-07-20 22:05:08,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 22:05:08,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3109 transitions. [2020-07-20 22:05:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-20 22:05:08,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:08,327 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:05:08,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:08,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:08,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1421213303, now seen corresponding path program 1 times [2020-07-20 22:05:08,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:08,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281871532] [2020-07-20 22:05:08,543 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 22:05:08,661 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:08,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:08,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:08,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:08,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:08,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281871532] [2020-07-20 22:05:08,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:08,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:08,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146169323] [2020-07-20 22:05:08,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:08,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:08,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:08,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:08,736 INFO L87 Difference]: Start difference. First operand 2444 states and 3109 transitions. Second operand 3 states. [2020-07-20 22:05:09,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:09,365 INFO L93 Difference]: Finished difference Result 7106 states and 9193 transitions. [2020-07-20 22:05:09,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:09,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-20 22:05:09,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:09,397 INFO L225 Difference]: With dead ends: 7106 [2020-07-20 22:05:09,397 INFO L226 Difference]: Without dead ends: 4672 [2020-07-20 22:05:09,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 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 22:05:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2020-07-20 22:05:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4371. [2020-07-20 22:05:09,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-07-20 22:05:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 5553 transitions. [2020-07-20 22:05:09,564 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 5553 transitions. Word has length 205 [2020-07-20 22:05:09,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:09,565 INFO L479 AbstractCegarLoop]: Abstraction has 4371 states and 5553 transitions. [2020-07-20 22:05:09,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 5553 transitions. [2020-07-20 22:05:09,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-20 22:05:09,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:09,588 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:09,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:09,803 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:09,803 INFO L82 PathProgramCache]: Analyzing trace with hash 575607827, now seen corresponding path program 1 times [2020-07-20 22:05:09,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:09,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033116718] [2020-07-20 22:05:09,804 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:09,931 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:09,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:09,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 22:05:09,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 22:05:09,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:09,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033116718] [2020-07-20 22:05:09,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:09,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:05:09,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242463260] [2020-07-20 22:05:09,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:05:09,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:09,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:05:09,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:05:09,995 INFO L87 Difference]: Start difference. First operand 4371 states and 5553 transitions. Second operand 5 states. [2020-07-20 22:05:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:10,757 INFO L93 Difference]: Finished difference Result 8420 states and 10581 transitions. [2020-07-20 22:05:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 22:05:10,758 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-07-20 22:05:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:10,779 INFO L225 Difference]: With dead ends: 8420 [2020-07-20 22:05:10,779 INFO L226 Difference]: Without dead ends: 4059 [2020-07-20 22:05:10,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 22:05:10,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2020-07-20 22:05:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 2719. [2020-07-20 22:05:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-07-20 22:05:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3192 transitions. [2020-07-20 22:05:10,889 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3192 transitions. Word has length 236 [2020-07-20 22:05:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:10,890 INFO L479 AbstractCegarLoop]: Abstraction has 2719 states and 3192 transitions. [2020-07-20 22:05:10,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:05:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3192 transitions. [2020-07-20 22:05:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-20 22:05:10,899 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:10,901 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:05:11,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:11,115 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1177788655, now seen corresponding path program 1 times [2020-07-20 22:05:11,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:11,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1608803436] [2020-07-20 22:05:11,118 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:11,236 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:11,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:11,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:11,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:11,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 22:05:11,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1608803436] [2020-07-20 22:05:11,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:11,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:05:11,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848966868] [2020-07-20 22:05:11,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:05:11,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:11,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:05:11,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:11,444 INFO L87 Difference]: Start difference. First operand 2719 states and 3192 transitions. Second operand 6 states. [2020-07-20 22:05:12,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:12,407 INFO L93 Difference]: Finished difference Result 6464 states and 7579 transitions. [2020-07-20 22:05:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 22:05:12,409 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-20 22:05:12,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:12,421 INFO L225 Difference]: With dead ends: 6464 [2020-07-20 22:05:12,421 INFO L226 Difference]: Without dead ends: 2572 [2020-07-20 22:05:12,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 22:05:12,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2020-07-20 22:05:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2418. [2020-07-20 22:05:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2020-07-20 22:05:12,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 2728 transitions. [2020-07-20 22:05:12,487 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 2728 transitions. Word has length 235 [2020-07-20 22:05:12,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:12,487 INFO L479 AbstractCegarLoop]: Abstraction has 2418 states and 2728 transitions. [2020-07-20 22:05:12,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:05:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 2728 transitions. [2020-07-20 22:05:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-20 22:05:12,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:12,497 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 22:05:12,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:12,713 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:12,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:12,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1787452681, now seen corresponding path program 1 times [2020-07-20 22:05:12,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:12,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597230774] [2020-07-20 22:05:12,715 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:12,857 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:12,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:12,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:05:12,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 22:05:12,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 22:05:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 123 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-20 22:05:13,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597230774] [2020-07-20 22:05:13,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 22:05:13,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 22:05:13,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263436938] [2020-07-20 22:05:13,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 22:05:13,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:13,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 22:05:13,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 22:05:13,045 INFO L87 Difference]: Start difference. First operand 2418 states and 2728 transitions. Second operand 6 states. [2020-07-20 22:05:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:13,485 INFO L93 Difference]: Finished difference Result 4521 states and 5117 transitions. [2020-07-20 22:05:13,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:05:13,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-07-20 22:05:13,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:13,494 INFO L225 Difference]: With dead ends: 4521 [2020-07-20 22:05:13,494 INFO L226 Difference]: Without dead ends: 2109 [2020-07-20 22:05:13,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 482 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 22:05:13,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-07-20 22:05:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2107. [2020-07-20 22:05:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-07-20 22:05:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2329 transitions. [2020-07-20 22:05:13,543 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2329 transitions. Word has length 244 [2020-07-20 22:05:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:13,544 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 2329 transitions. [2020-07-20 22:05:13,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 22:05:13,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2329 transitions. [2020-07-20 22:05:13,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-20 22:05:13,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:05:13,553 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 22:05:13,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:13,766 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:05:13,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:05:13,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1449891231, now seen corresponding path program 1 times [2020-07-20 22:05:13,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:05:13,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609175469] [2020-07-20 22:05:13,768 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:13,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 22:05:13,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:05:13,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 22:05:13,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:05:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-20 22:05:13,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:05:13,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609175469] [2020-07-20 22:05:13,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:05:13,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:05:13,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315633701] [2020-07-20 22:05:13,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:05:13,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:05:13,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:05:13,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:05:13,977 INFO L87 Difference]: Start difference. First operand 2107 states and 2329 transitions. Second operand 3 states. [2020-07-20 22:05:14,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:05:14,629 INFO L93 Difference]: Finished difference Result 4931 states and 5512 transitions. [2020-07-20 22:05:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:05:14,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-20 22:05:14,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:05:14,631 INFO L225 Difference]: With dead ends: 4931 [2020-07-20 22:05:14,631 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:05:14,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 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 22:05:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:05:14,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:05:14,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:05:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:05:14,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2020-07-20 22:05:14,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:05:14,647 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:05:14,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:05:14,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:05:14,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:05:14,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:05:14,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:05:16,548 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-07-20 22:05:16,914 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-20 22:05:17,250 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-20 22:05:17,254 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:05:17,254 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-20 22:05:17,255 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:05:17,255 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,255 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,255 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,255 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 22:05:17,256 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:05:17,257 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,258 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 22:05:17,259 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,260 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 22:05:17,261 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 22:05:17,262 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 22:05:17,263 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,264 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 22:05:17,265 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:05:17,266 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 22:05:17,267 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,268 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 22:05:17,269 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,270 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 22:05:17,271 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 22:05:17,272 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,273 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= 1 |old(~a19~0)|)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (<= ~a28~0 8) .cse7)) (.cse8 (not (<= |old(~a17~0)| 7))) (.cse2 (not (<= |old(~a28~0)| 8))) (.cse15 (not (<= |old(~a28~0)| 7))) (.cse10 (not (<= |old(~a25~0)| 0))) (.cse11 (<= ~a25~0 0)) (.cse12 (not (<= 8 |old(~a17~0)|))) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse16 (<= ~a17~0 8)) (.cse9 (not .cse0)) (.cse13 (= 1 ~a11~0)) (.cse4 (not (<= 10 |old(~a28~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse14 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 (and .cse5 .cse6 (<= 10 ~a28~0) .cse7)) (or .cse1 .cse2 .cse8) (or .cse9 .cse10 .cse11 .cse4 .cse3) (or .cse2 .cse10 .cse11 .cse8) (or .cse9 .cse12 .cse10 .cse11 .cse3) (or .cse0 (and .cse5 .cse6 .cse13 .cse7) .cse8 .cse14) (or .cse0 (and .cse5 .cse6 .cse11 .cse7) .cse10 .cse8) (or .cse0 .cse13 .cse2 .cse3 .cse14) (or .cse15 .cse6 .cse3) (or .cse15 .cse13 .cse3 .cse14) (or .cse9 .cse13 .cse12 .cse3 .cse14) (or .cse9 (not (<= 11 |old(~a28~0)|)) (<= 11 ~a28~0) .cse3) (or .cse0 .cse10 (and .cse13 .cse6 .cse16 .cse11 .cse7) .cse3 .cse14) (or .cse9 .cse12 (and .cse6 .cse16 (<= 8 ~a17~0) .cse7) .cse3) (or .cse9 .cse13 .cse4 .cse3 .cse14)))) [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 22:05:17,274 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 22:05:17,275 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 22:05:17,276 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:05:17,277 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 22:05:17,278 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 22:05:17,279 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 22:05:17,280 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 22:05:17,281 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:05:17,281 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-20 22:05:17,281 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:05:17,281 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:05:17,281 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-20 22:05:17,281 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-20 22:05:17,282 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:05:17,282 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 22:05:17,282 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-20 22:05:17,282 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 22:05:17,282 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 22:05:17,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:05:17 BoogieIcfgContainer [2020-07-20 22:05:17,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:05:17,306 INFO L168 Benchmark]: Toolchain (without parser) took 19896.26 ms. Allocated memory was 145.2 MB in the beginning and 505.4 MB in the end (delta: 360.2 MB). Free memory was 101.4 MB in the beginning and 393.1 MB in the end (delta: -291.7 MB). Peak memory consumption was 371.2 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,307 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.10 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 178.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,309 INFO L168 Benchmark]: Boogie Preprocessor took 123.12 ms. Allocated memory is still 207.6 MB. Free memory was 178.9 MB in the beginning and 173.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,310 INFO L168 Benchmark]: RCFGBuilder took 1276.67 ms. Allocated memory was 207.6 MB in the beginning and 240.1 MB in the end (delta: 32.5 MB). Free memory was 173.8 MB in the beginning and 190.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,311 INFO L168 Benchmark]: TraceAbstraction took 17720.55 ms. Allocated memory was 240.1 MB in the beginning and 505.4 MB in the end (delta: 265.3 MB). Free memory was 190.1 MB in the beginning and 393.1 MB in the end (delta: -203.0 MB). Peak memory consumption was 365.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:05:17,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.10 ms. Allocated memory was 145.2 MB in the beginning and 207.6 MB in the end (delta: 62.4 MB). Free memory was 101.0 MB in the beginning and 178.9 MB in the end (delta: -77.9 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.12 ms. Allocated memory is still 207.6 MB. Free memory was 178.9 MB in the beginning and 173.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1276.67 ms. Allocated memory was 207.6 MB in the beginning and 240.1 MB in the end (delta: 32.5 MB). Free memory was 173.8 MB in the beginning and 190.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17720.55 ms. Allocated memory was 240.1 MB in the beginning and 505.4 MB in the end (delta: 265.3 MB). Free memory was 190.1 MB in the beginning and 393.1 MB in the end (delta: -203.0 MB). Peak memory consumption was 365.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || (a17 <= 8 && a28 <= 8)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || !(8 <= \old(a17))) || ((1 == a11 && a17 <= 7) && !(1 == a19))) || (a17 <= 8 && 10 <= a28)) || ((a25 <= 0 && a17 <= 7) && !(1 == a19))) || !(\old(a17) <= 8)) || (((1 == a11 && a17 <= 8) && a25 <= 0) && !(1 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.1s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1305 SDtfs, 2564 SDslu, 459 SDs, 0 SdLazy, 6219 SolverSat, 1180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3118 GetRequests, 3075 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4371occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 2395 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 174 PreInvPairs, 230 NumberOfFragments, 557 HoareAnnotationTreeSize, 174 FomulaSimplifications, 1871 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2514 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2228 NumberOfCodeBlocks, 2228 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 3096 ConstructedInterpolants, 0 QuantifiedInterpolants, 1164194 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4915 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 1228/1278 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...