/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:34:31,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:34:31,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:34:31,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:34:31,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:34:31,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:34:31,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:34:31,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:34:31,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:34:31,222 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:34:31,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:34:31,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:34:31,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:34:31,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:34:31,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:34:31,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:34:31,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:34:31,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:34:31,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:34:31,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:34:31,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:34:31,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:34:31,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:34:31,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:34:31,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 16:34:31,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 16:34:31,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 16:34:31,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 16:34:31,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 16:34:31,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 16:34:31,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 16:34:31,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 16:34:31,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 16:34:31,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 16:34:31,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 16:34:31,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 16:34:31,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 16:34:31,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 16:34:31,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:34:31,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:34:31,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:34:31,251 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 16:34:31,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:34:31,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:34:31,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:34:31,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:34:31,268 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:34:31,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:34:31,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:34:31,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:34:31,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:34:31,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:34:31,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:34:31,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:34:31,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:34:31,270 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:34:31,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:34:31,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:34:31,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:34:31,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:34:31,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:34:31,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:34:31,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:34:31,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:31,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:34:31,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:34:31,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:34:31,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:34:31,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:31,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:34:31,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:34:31,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:34:31,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:34:31,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:34:31,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:34:31,595 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:34:31,598 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:34:31,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 16:34:31,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200b9a369/b60cb8dd17bc4933817808600709b219/FLAG562245f26 [2020-07-21 16:34:32,304 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:34:32,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 16:34:32,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200b9a369/b60cb8dd17bc4933817808600709b219/FLAG562245f26 [2020-07-21 16:34:32,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200b9a369/b60cb8dd17bc4933817808600709b219 [2020-07-21 16:34:32,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:34:32,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:34:32,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:32,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:34:32,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:34:32,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:32" (1/1) ... [2020-07-21 16:34:32,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de81784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:32, skipping insertion in model container [2020-07-21 16:34:32,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:34:32" (1/1) ... [2020-07-21 16:34:32,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:34:32,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:34:33,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:33,151 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:34:33,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:34:33,353 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:34:33,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33 WrapperNode [2020-07-21 16:34:33,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:34:33,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:34:33,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:34:33,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:34:33,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... [2020-07-21 16:34:33,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:34:33,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:34:33,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:34:33,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:34:33,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:34:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:34:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:34:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:34:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:34:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:34:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:34:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:34:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:34:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:34:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:34:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:34:34,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:34:34,703 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:34:34,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:34 BoogieIcfgContainer [2020-07-21 16:34:34,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:34:34,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:34:34,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:34:34,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:34:34,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:34:32" (1/3) ... [2020-07-21 16:34:34,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb91bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:34, skipping insertion in model container [2020-07-21 16:34:34,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:34:33" (2/3) ... [2020-07-21 16:34:34,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb91bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:34:34, skipping insertion in model container [2020-07-21 16:34:34,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:34:34" (3/3) ... [2020-07-21 16:34:34,719 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2020-07-21 16:34:34,731 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:34:34,739 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:34:34,754 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:34:34,781 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:34:34,781 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:34:34,781 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:34:34,782 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:34:34,782 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:34:34,782 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:34:34,782 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:34:34,783 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:34:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 16:34:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 16:34:34,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:34,828 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] [2020-07-21 16:34:34,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:34,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:34,836 INFO L82 PathProgramCache]: Analyzing trace with hash -421614983, now seen corresponding path program 1 times [2020-07-21 16:34:34,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:34,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652507319] [2020-07-21 16:34:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:35,089 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:35,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:35,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:34:35,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:35,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:35,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652507319] [2020-07-21 16:34:35,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:35,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:35,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777264900] [2020-07-21 16:34:35,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:35,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:35,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:35,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:35,263 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 16:34:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:36,218 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 16:34:36,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:36,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-21 16:34:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:36,253 INFO L225 Difference]: With dead ends: 615 [2020-07-21 16:34:36,254 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 16:34:36,266 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 [2020-07-21 16:34:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 16:34:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 16:34:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 16:34:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 16:34:36,365 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 147 [2020-07-21 16:34:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:36,367 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 16:34:36,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 16:34:36,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-21 16:34:36,373 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:36,373 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] [2020-07-21 16:34:36,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:36,587 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:36,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1468794956, now seen corresponding path program 1 times [2020-07-21 16:34:36,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:36,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55227245] [2020-07-21 16:34:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:36,737 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:36,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:36,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:36,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:36,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:36,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55227245] [2020-07-21 16:34:36,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:36,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:36,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690969969] [2020-07-21 16:34:36,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:36,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:36,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:36,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:36,824 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 16:34:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:37,436 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 16:34:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:37,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-07-21 16:34:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:37,449 INFO L225 Difference]: With dead ends: 919 [2020-07-21 16:34:37,449 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 16:34:37,450 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 [2020-07-21 16:34:37,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 16:34:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 16:34:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 16:34:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 16:34:37,491 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 162 [2020-07-21 16:34:37,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:37,492 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 16:34:37,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 16:34:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 16:34:37,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:37,499 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] [2020-07-21 16:34:37,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:37,716 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:37,717 INFO L82 PathProgramCache]: Analyzing trace with hash -178268063, now seen corresponding path program 1 times [2020-07-21 16:34:37,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:37,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921515654] [2020-07-21 16:34:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:37,835 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:37,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:37,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:37,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:37,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:37,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921515654] [2020-07-21 16:34:37,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:37,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:37,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622738594] [2020-07-21 16:34:37,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:37,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:37,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:37,899 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 16:34:38,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:38,596 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 16:34:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:38,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-21 16:34:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:38,605 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 16:34:38,606 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 16:34:38,607 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 [2020-07-21 16:34:38,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 16:34:38,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 16:34:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 16:34:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 16:34:38,632 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 169 [2020-07-21 16:34:38,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:38,633 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 16:34:38,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:38,633 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 16:34:38,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 16:34:38,639 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:38,640 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] [2020-07-21 16:34:38,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:38,853 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:38,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1977015017, now seen corresponding path program 1 times [2020-07-21 16:34:38,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:38,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032248929] [2020-07-21 16:34:38,856 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:38,958 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:38,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:38,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:38,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:39,036 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:39,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:39,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032248929] [2020-07-21 16:34:39,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:39,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:39,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098689509] [2020-07-21 16:34:39,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:39,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:39,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:39,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:39,039 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states. [2020-07-21 16:34:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:39,662 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions. [2020-07-21 16:34:39,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:39,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-07-21 16:34:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:39,670 INFO L225 Difference]: With dead ends: 1505 [2020-07-21 16:34:39,671 INFO L226 Difference]: Without dead ends: 902 [2020-07-21 16:34:39,673 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 [2020-07-21 16:34:39,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-21 16:34:39,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756. [2020-07-21 16:34:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-21 16:34:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions. [2020-07-21 16:34:39,698 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 173 [2020-07-21 16:34:39,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:39,698 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions. [2020-07-21 16:34:39,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:39,699 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions. [2020-07-21 16:34:39,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 16:34:39,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:39,704 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] [2020-07-21 16:34:39,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:39,914 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -347277386, now seen corresponding path program 1 times [2020-07-21 16:34:39,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:39,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106838828] [2020-07-21 16:34:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:40,027 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:40,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:40,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:40,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:40,087 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:40,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:40,182 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:40,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106838828] [2020-07-21 16:34:40,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:40,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:40,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611460799] [2020-07-21 16:34:40,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:40,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:40,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:40,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:40,185 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states. [2020-07-21 16:34:41,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:41,214 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions. [2020-07-21 16:34:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:41,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 16:34:41,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:41,221 INFO L225 Difference]: With dead ends: 1824 [2020-07-21 16:34:41,221 INFO L226 Difference]: Without dead ends: 1074 [2020-07-21 16:34:41,224 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 [2020-07-21 16:34:41,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-07-21 16:34:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 920. [2020-07-21 16:34:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-07-21 16:34:41,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1204 transitions. [2020-07-21 16:34:41,257 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1204 transitions. Word has length 198 [2020-07-21 16:34:41,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:41,258 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1204 transitions. [2020-07-21 16:34:41,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1204 transitions. [2020-07-21 16:34:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 16:34:41,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:41,263 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] [2020-07-21 16:34:41,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:41,479 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:41,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:41,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1272202501, now seen corresponding path program 1 times [2020-07-21 16:34:41,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:41,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804167218] [2020-07-21 16:34:41,482 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:41,598 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:41,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:41,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:41,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:41,658 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 16:34:41,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 16:34:41,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804167218] [2020-07-21 16:34:41,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:41,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:34:41,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242380139] [2020-07-21 16:34:41,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:34:41,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:41,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:34:41,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:34:41,777 INFO L87 Difference]: Start difference. First operand 920 states and 1204 transitions. Second operand 7 states. [2020-07-21 16:34:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:43,409 INFO L93 Difference]: Finished difference Result 3366 states and 4682 transitions. [2020-07-21 16:34:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:34:43,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-21 16:34:43,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:43,426 INFO L225 Difference]: With dead ends: 3366 [2020-07-21 16:34:43,426 INFO L226 Difference]: Without dead ends: 2452 [2020-07-21 16:34:43,435 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 [2020-07-21 16:34:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-07-21 16:34:43,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2444. [2020-07-21 16:34:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2020-07-21 16:34:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3109 transitions. [2020-07-21 16:34:43,539 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3109 transitions. Word has length 206 [2020-07-21 16:34:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:43,540 INFO L479 AbstractCegarLoop]: Abstraction has 2444 states and 3109 transitions. [2020-07-21 16:34:43,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:34:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3109 transitions. [2020-07-21 16:34:43,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-21 16:34:43,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:43,556 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] [2020-07-21 16:34:43,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:43,771 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:43,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1421213303, now seen corresponding path program 1 times [2020-07-21 16:34:43,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:43,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [109145120] [2020-07-21 16:34:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:43,897 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:43,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:43,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:43,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:43,968 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:43,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:43,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [109145120] [2020-07-21 16:34:43,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:43,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:43,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882139419] [2020-07-21 16:34:43,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:43,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:43,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:43,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:43,971 INFO L87 Difference]: Start difference. First operand 2444 states and 3109 transitions. Second operand 3 states. [2020-07-21 16:34:44,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:44,591 INFO L93 Difference]: Finished difference Result 7106 states and 9193 transitions. [2020-07-21 16:34:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:44,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-21 16:34:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:44,621 INFO L225 Difference]: With dead ends: 7106 [2020-07-21 16:34:44,621 INFO L226 Difference]: Without dead ends: 4672 [2020-07-21 16:34:44,635 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 [2020-07-21 16:34:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2020-07-21 16:34:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4371. [2020-07-21 16:34:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-07-21 16:34:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 5553 transitions. [2020-07-21 16:34:44,820 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 5553 transitions. Word has length 205 [2020-07-21 16:34:44,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:44,821 INFO L479 AbstractCegarLoop]: Abstraction has 4371 states and 5553 transitions. [2020-07-21 16:34:44,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 5553 transitions. [2020-07-21 16:34:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-21 16:34:44,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:44,853 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] [2020-07-21 16:34:45,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:45,073 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:45,074 INFO L82 PathProgramCache]: Analyzing trace with hash 575607827, now seen corresponding path program 1 times [2020-07-21 16:34:45,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:45,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880799462] [2020-07-21 16:34:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:45,220 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:45,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:45,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:34:45,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 16:34:45,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:45,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880799462] [2020-07-21 16:34:45,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:45,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:34:45,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350496123] [2020-07-21 16:34:45,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:34:45,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:45,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:34:45,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:34:45,288 INFO L87 Difference]: Start difference. First operand 4371 states and 5553 transitions. Second operand 5 states. [2020-07-21 16:34:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:46,066 INFO L93 Difference]: Finished difference Result 8420 states and 10581 transitions. [2020-07-21 16:34:46,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:34:46,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-07-21 16:34:46,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:46,096 INFO L225 Difference]: With dead ends: 8420 [2020-07-21 16:34:46,097 INFO L226 Difference]: Without dead ends: 4059 [2020-07-21 16:34:46,112 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 [2020-07-21 16:34:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2020-07-21 16:34:46,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 2719. [2020-07-21 16:34:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-07-21 16:34:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3192 transitions. [2020-07-21 16:34:46,206 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3192 transitions. Word has length 236 [2020-07-21 16:34:46,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:46,206 INFO L479 AbstractCegarLoop]: Abstraction has 2719 states and 3192 transitions. [2020-07-21 16:34:46,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:34:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3192 transitions. [2020-07-21 16:34:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 16:34:46,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:46,218 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] [2020-07-21 16:34:46,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:46,432 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:46,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:46,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1177788655, now seen corresponding path program 1 times [2020-07-21 16:34:46,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:46,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370676187] [2020-07-21 16:34:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:46,654 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:46,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:46,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:46,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:46,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:34:46,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370676187] [2020-07-21 16:34:46,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:46,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:46,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898079673] [2020-07-21 16:34:46,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:46,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:46,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:46,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:46,831 INFO L87 Difference]: Start difference. First operand 2719 states and 3192 transitions. Second operand 6 states. [2020-07-21 16:34:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:47,874 INFO L93 Difference]: Finished difference Result 6464 states and 7579 transitions. [2020-07-21 16:34:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 16:34:47,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 16:34:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:47,887 INFO L225 Difference]: With dead ends: 6464 [2020-07-21 16:34:47,887 INFO L226 Difference]: Without dead ends: 2572 [2020-07-21 16:34:47,895 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 [2020-07-21 16:34:47,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2020-07-21 16:34:47,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2418. [2020-07-21 16:34:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2020-07-21 16:34:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 2728 transitions. [2020-07-21 16:34:47,955 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 2728 transitions. Word has length 235 [2020-07-21 16:34:47,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:47,955 INFO L479 AbstractCegarLoop]: Abstraction has 2418 states and 2728 transitions. [2020-07-21 16:34:47,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 2728 transitions. [2020-07-21 16:34:47,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 16:34:47,964 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:47,965 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] [2020-07-21 16:34:48,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:48,180 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:48,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:48,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1787452681, now seen corresponding path program 1 times [2020-07-21 16:34:48,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:48,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383081405] [2020-07-21 16:34:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:48,336 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:48,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:48,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:34:48,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 16:34:48,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:34:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 123 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 16:34:48,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383081405] [2020-07-21 16:34:48,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:34:48,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:34:48,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268746830] [2020-07-21 16:34:48,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:34:48,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:48,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:34:48,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:34:48,519 INFO L87 Difference]: Start difference. First operand 2418 states and 2728 transitions. Second operand 6 states. [2020-07-21 16:34:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:48,945 INFO L93 Difference]: Finished difference Result 4521 states and 5117 transitions. [2020-07-21 16:34:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 16:34:48,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-07-21 16:34:48,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:48,953 INFO L225 Difference]: With dead ends: 4521 [2020-07-21 16:34:48,954 INFO L226 Difference]: Without dead ends: 2109 [2020-07-21 16:34:48,959 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 [2020-07-21 16:34:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-07-21 16:34:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2107. [2020-07-21 16:34:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-07-21 16:34:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2329 transitions. [2020-07-21 16:34:49,004 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2329 transitions. Word has length 244 [2020-07-21 16:34:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:49,005 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 2329 transitions. [2020-07-21 16:34:49,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:34:49,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2329 transitions. [2020-07-21 16:34:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 16:34:49,013 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:34:49,014 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] [2020-07-21 16:34:49,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:49,229 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:34:49,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:34:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1449891231, now seen corresponding path program 1 times [2020-07-21 16:34:49,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:34:49,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531330682] [2020-07-21 16:34:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:49,386 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:34:49,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:34:49,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 16:34:49,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:34:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 16:34:49,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:34:49,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531330682] [2020-07-21 16:34:49,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:34:49,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:34:49,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107511389] [2020-07-21 16:34:49,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:34:49,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:34:49,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:34:49,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:34:49,524 INFO L87 Difference]: Start difference. First operand 2107 states and 2329 transitions. Second operand 3 states. [2020-07-21 16:34:50,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:34:50,019 INFO L93 Difference]: Finished difference Result 4931 states and 5512 transitions. [2020-07-21 16:34:50,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:34:50,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-21 16:34:50,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:34:50,022 INFO L225 Difference]: With dead ends: 4931 [2020-07-21 16:34:50,023 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:34:50,031 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 [2020-07-21 16:34:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:34:50,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:34:50,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:34:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:34:50,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2020-07-21 16:34:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:34:50,032 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:34:50,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:34:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:34:50,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:34:50,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:34:50,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:34:51,934 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-07-21 16:34:52,301 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-21 16:34:52,628 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-21 16:34:52,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:52,633 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)|)) [2020-07-21 16:34:52,633 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:52,633 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,633 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,634 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,634 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,634 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,634 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 16:34:52,634 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 16:34:52,635 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 16:34:52,636 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 16:34:52,637 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:52,638 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 16:34:52,639 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 16:34:52,640 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,641 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 16:34:52,642 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,643 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 16:34:52,644 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 16:34:52,645 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,646 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 16:34:52,647 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,648 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 16:34:52,649 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 16:34:52,650 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,651 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,651 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,651 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)))) [2020-07-21 16:34:52,651 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,651 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 16:34:52,652 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,653 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 16:34:52,654 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 16:34:52,655 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 16:34:52,656 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 16:34:52,657 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 16:34:52,658 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 16:34:52,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:34:52,659 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)) [2020-07-21 16:34:52,659 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:34:52,659 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:34:52,659 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))) [2020-07-21 16:34:52,659 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)))) [2020-07-21 16:34:52,659 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:52,660 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 16:34:52,660 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)))) [2020-07-21 16:34:52,660 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 16:34:52,660 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 16:34:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:34:52 BoogieIcfgContainer [2020-07-21 16:34:52,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:34:52,686 INFO L168 Benchmark]: Toolchain (without parser) took 20144.71 ms. Allocated memory was 137.9 MB in the beginning and 599.3 MB in the end (delta: 461.4 MB). Free memory was 101.3 MB in the beginning and 408.1 MB in the end (delta: -306.8 MB). Peak memory consumption was 438.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,687 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.79 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 170.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,697 INFO L168 Benchmark]: Boogie Preprocessor took 131.77 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 165.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,698 INFO L168 Benchmark]: RCFGBuilder took 1223.81 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 181.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,699 INFO L168 Benchmark]: TraceAbstraction took 17971.53 ms. Allocated memory was 236.5 MB in the beginning and 599.3 MB in the end (delta: 362.8 MB). Free memory was 181.0 MB in the beginning and 408.1 MB in the end (delta: -227.1 MB). Peak memory consumption was 419.1 MB. Max. memory is 7.1 GB. [2020-07-21 16:34:52,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.79 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 100.9 MB in the beginning and 170.5 MB in the end (delta: -69.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.77 ms. Allocated memory is still 203.9 MB. Free memory was 170.5 MB in the beginning and 165.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1223.81 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 181.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17971.53 ms. Allocated memory was 236.5 MB in the beginning and 599.3 MB in the end (delta: 362.8 MB). Free memory was 181.0 MB in the beginning and 408.1 MB in the end (delta: -227.1 MB). Peak memory consumption was 419.1 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: 15.4s, 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, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2514 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2228 NumberOfCodeBlocks, 2228 NumberOfCodeBlocksAsserted, 22 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...