/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_FUNCTIONS --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_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:08,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:52:08,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:52:08,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:52:08,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:52:08,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:52:08,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:52:08,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:52:08,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:52:08,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:52:08,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:52:08,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:52:08,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:08,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:08,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:08,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:08,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:08,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:08,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:08,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:08,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:08,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:08,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:08,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:08,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:08,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:08,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:08,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:08,469 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 13:52:08,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:08,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:08,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:08,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:08,488 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:08,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:08,488 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:08,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:08,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:08,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:08,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:08,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:08,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:08,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:08,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:08,490 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:08,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:08,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:08,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:08,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:08,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:08,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:08,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:08,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:08,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:08,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:08,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:08,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:08,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:08,494 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_FUNCTIONS 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 13:52:08,758 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:08,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:08,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:08,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:08,787 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:08,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-21 13:52:08,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7c056f4/ec842fe1510049f7bec1105dc26493ae/FLAG783730cd6 [2020-07-21 13:52:09,454 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:09,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label42.c [2020-07-21 13:52:09,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7c056f4/ec842fe1510049f7bec1105dc26493ae/FLAG783730cd6 [2020-07-21 13:52:09,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7c056f4/ec842fe1510049f7bec1105dc26493ae [2020-07-21 13:52:09,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:09,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:09,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:09,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:09,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:09,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:09" (1/1) ... [2020-07-21 13:52:09,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235b9204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:09, skipping insertion in model container [2020-07-21 13:52:09,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:09" (1/1) ... [2020-07-21 13:52:09,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:09,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:10,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:10,194 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:10,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:10,478 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:10,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10 WrapperNode [2020-07-21 13:52:10,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:10,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:10,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:10,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:10,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (1/1) ... [2020-07-21 13:52:10,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:10,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:10,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:10,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:10,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (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 13:52:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:10,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:11,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:11,697 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:11,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:11 BoogieIcfgContainer [2020-07-21 13:52:11,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:11,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:11,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:11,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:11,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:09" (1/3) ... [2020-07-21 13:52:11,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5284b273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:11, skipping insertion in model container [2020-07-21 13:52:11,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:10" (2/3) ... [2020-07-21 13:52:11,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5284b273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:11, skipping insertion in model container [2020-07-21 13:52:11,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:11" (3/3) ... [2020-07-21 13:52:11,711 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label42.c [2020-07-21 13:52:11,721 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:11,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:11,742 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:11,767 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:11,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:11,768 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:11,768 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:11,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:11,768 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:11,768 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:11,769 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-07-21 13:52:11,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:11,807 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] [2020-07-21 13:52:11,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:11,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:11,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1304641474, now seen corresponding path program 1 times [2020-07-21 13:52:11,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:11,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019977778] [2020-07-21 13:52:11,824 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 13:52:12,002 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:12,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:12,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:12,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:12,138 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 13:52:12,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:12,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019977778] [2020-07-21 13:52:12,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:12,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:12,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961154436] [2020-07-21 13:52:12,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:12,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:12,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:12,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:12,171 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:13,181 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:13,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-07-21 13:52:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:13,199 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:13,199 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:13,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 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 13:52:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:13,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:13,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:13,269 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 106 [2020-07-21 13:52:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:13,270 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:13,271 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:13,271 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 13:52:13,276 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:13,276 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:13,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:13,491 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:13,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:13,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1103480815, now seen corresponding path program 1 times [2020-07-21 13:52:13,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:13,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559647383] [2020-07-21 13:52:13,493 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 13:52:13,587 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:13,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:13,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:13,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:13,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:13,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:13,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559647383] [2020-07-21 13:52:13,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:13,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:13,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064138905] [2020-07-21 13:52:13,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:13,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:13,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:13,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:13,666 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 3 states. [2020-07-21 13:52:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:14,225 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2020-07-21 13:52:14,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:14,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-21 13:52:14,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:14,230 INFO L225 Difference]: With dead ends: 782 [2020-07-21 13:52:14,230 INFO L226 Difference]: Without dead ends: 469 [2020-07-21 13:52:14,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 13:52:14,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-21 13:52:14,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2020-07-21 13:52:14,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-07-21 13:52:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 600 transitions. [2020-07-21 13:52:14,257 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 600 transitions. Word has length 115 [2020-07-21 13:52:14,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:14,258 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 600 transitions. [2020-07-21 13:52:14,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 600 transitions. [2020-07-21 13:52:14,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-21 13:52:14,262 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:14,262 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:52:14,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:14,477 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:14,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1785081447, now seen corresponding path program 1 times [2020-07-21 13:52:14,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:14,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733558832] [2020-07-21 13:52:14,479 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 13:52:14,586 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:14,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:14,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:14,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:14,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:14,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733558832] [2020-07-21 13:52:14,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:14,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:14,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130466253] [2020-07-21 13:52:14,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:14,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:14,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:14,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:14,715 INFO L87 Difference]: Start difference. First operand 469 states and 600 transitions. Second operand 4 states. [2020-07-21 13:52:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:15,407 INFO L93 Difference]: Finished difference Result 1386 states and 1800 transitions. [2020-07-21 13:52:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:15,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-07-21 13:52:15,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:15,419 INFO L225 Difference]: With dead ends: 1386 [2020-07-21 13:52:15,420 INFO L226 Difference]: Without dead ends: 923 [2020-07-21 13:52:15,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 246 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:15,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-07-21 13:52:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 923. [2020-07-21 13:52:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 923 states. [2020-07-21 13:52:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1177 transitions. [2020-07-21 13:52:15,499 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1177 transitions. Word has length 127 [2020-07-21 13:52:15,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:15,500 INFO L479 AbstractCegarLoop]: Abstraction has 923 states and 1177 transitions. [2020-07-21 13:52:15,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:15,501 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1177 transitions. [2020-07-21 13:52:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 13:52:15,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:15,504 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 13:52:15,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:15,719 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:15,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:15,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1788893684, now seen corresponding path program 1 times [2020-07-21 13:52:15,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:15,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598400574] [2020-07-21 13:52:15,722 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 13:52:15,846 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:15,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:15,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:15,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:15,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:15,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598400574] [2020-07-21 13:52:15,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:15,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:15,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338157710] [2020-07-21 13:52:15,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:15,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:15,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:15,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:15,922 INFO L87 Difference]: Start difference. First operand 923 states and 1177 transitions. Second operand 3 states. [2020-07-21 13:52:16,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:16,533 INFO L93 Difference]: Finished difference Result 2130 states and 2809 transitions. [2020-07-21 13:52:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:16,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 13:52:16,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:16,549 INFO L225 Difference]: With dead ends: 2130 [2020-07-21 13:52:16,550 INFO L226 Difference]: Without dead ends: 1213 [2020-07-21 13:52:16,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-07-21 13:52:16,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1211. [2020-07-21 13:52:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-07-21 13:52:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1581 transitions. [2020-07-21 13:52:16,613 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1581 transitions. Word has length 135 [2020-07-21 13:52:16,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:16,614 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1581 transitions. [2020-07-21 13:52:16,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1581 transitions. [2020-07-21 13:52:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-21 13:52:16,618 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:16,618 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:16,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:16,832 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:16,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:16,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1477599978, now seen corresponding path program 1 times [2020-07-21 13:52:16,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:16,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567857436] [2020-07-21 13:52:16,834 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 13:52:16,937 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:16,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:16,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:16,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 13:52:16,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:16,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567857436] [2020-07-21 13:52:16,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:16,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:16,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440687795] [2020-07-21 13:52:16,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:16,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:16,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:16,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:16,994 INFO L87 Difference]: Start difference. First operand 1211 states and 1581 transitions. Second operand 5 states. [2020-07-21 13:52:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:17,850 INFO L93 Difference]: Finished difference Result 3660 states and 5049 transitions. [2020-07-21 13:52:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:17,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-21 13:52:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:17,881 INFO L225 Difference]: With dead ends: 3660 [2020-07-21 13:52:17,881 INFO L226 Difference]: Without dead ends: 2455 [2020-07-21 13:52:17,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:17,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-07-21 13:52:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2423. [2020-07-21 13:52:17,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-07-21 13:52:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3127 transitions. [2020-07-21 13:52:17,997 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3127 transitions. Word has length 141 [2020-07-21 13:52:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:17,998 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 3127 transitions. [2020-07-21 13:52:17,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3127 transitions. [2020-07-21 13:52:18,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 13:52:18,006 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:18,006 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:18,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:18,220 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:18,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1971043980, now seen corresponding path program 1 times [2020-07-21 13:52:18,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:18,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621662836] [2020-07-21 13:52:18,223 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 13:52:18,323 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:18,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:18,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:18,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:52:18,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 13:52:18,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621662836] [2020-07-21 13:52:18,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:18,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:18,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021768865] [2020-07-21 13:52:18,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:18,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:18,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:18,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:18,452 INFO L87 Difference]: Start difference. First operand 2423 states and 3127 transitions. Second operand 6 states. [2020-07-21 13:52:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:19,284 INFO L93 Difference]: Finished difference Result 5334 states and 6898 transitions. [2020-07-21 13:52:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:19,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-07-21 13:52:19,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:19,297 INFO L225 Difference]: With dead ends: 5334 [2020-07-21 13:52:19,297 INFO L226 Difference]: Without dead ends: 2608 [2020-07-21 13:52:19,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 310 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 13:52:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2020-07-21 13:52:19,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2600. [2020-07-21 13:52:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2600 states. [2020-07-21 13:52:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 3065 transitions. [2020-07-21 13:52:19,370 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 3065 transitions. Word has length 157 [2020-07-21 13:52:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:19,371 INFO L479 AbstractCegarLoop]: Abstraction has 2600 states and 3065 transitions. [2020-07-21 13:52:19,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 3065 transitions. [2020-07-21 13:52:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 13:52:19,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:19,378 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:19,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:19,593 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:19,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:19,594 INFO L82 PathProgramCache]: Analyzing trace with hash -218912508, now seen corresponding path program 1 times [2020-07-21 13:52:19,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:19,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146791333] [2020-07-21 13:52:19,595 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 13:52:19,708 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:19,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:19,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:19,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:19,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:19,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146791333] [2020-07-21 13:52:19,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:19,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:19,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459374968] [2020-07-21 13:52:19,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:19,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:19,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:19,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:19,829 INFO L87 Difference]: Start difference. First operand 2600 states and 3065 transitions. Second operand 7 states. [2020-07-21 13:52:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:20,914 INFO L93 Difference]: Finished difference Result 6492 states and 7667 transitions. [2020-07-21 13:52:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:52:20,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 13:52:20,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:20,928 INFO L225 Difference]: With dead ends: 6492 [2020-07-21 13:52:20,928 INFO L226 Difference]: Without dead ends: 2721 [2020-07-21 13:52:20,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:52:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2020-07-21 13:52:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2721. [2020-07-21 13:52:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2020-07-21 13:52:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3106 transitions. [2020-07-21 13:52:21,003 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3106 transitions. Word has length 161 [2020-07-21 13:52:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:21,004 INFO L479 AbstractCegarLoop]: Abstraction has 2721 states and 3106 transitions. [2020-07-21 13:52:21,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3106 transitions. [2020-07-21 13:52:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-21 13:52:21,011 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:21,011 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:52:21,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:21,225 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1598036036, now seen corresponding path program 1 times [2020-07-21 13:52:21,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:21,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420325255] [2020-07-21 13:52:21,227 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 13:52:21,331 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:21,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:21,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:21,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 67 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 13:52:21,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 13:52:21,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420325255] [2020-07-21 13:52:21,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:21,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 13:52:21,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238690186] [2020-07-21 13:52:21,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:21,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:21,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:21,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:21,495 INFO L87 Difference]: Start difference. First operand 2721 states and 3106 transitions. Second operand 5 states. [2020-07-21 13:52:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:22,135 INFO L93 Difference]: Finished difference Result 5364 states and 6318 transitions. [2020-07-21 13:52:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:22,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-07-21 13:52:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:22,149 INFO L225 Difference]: With dead ends: 5364 [2020-07-21 13:52:22,150 INFO L226 Difference]: Without dead ends: 2793 [2020-07-21 13:52:22,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 330 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2020-07-21 13:52:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2577. [2020-07-21 13:52:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2577 states. [2020-07-21 13:52:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 2819 transitions. [2020-07-21 13:52:22,219 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 2819 transitions. Word has length 168 [2020-07-21 13:52:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:22,220 INFO L479 AbstractCegarLoop]: Abstraction has 2577 states and 2819 transitions. [2020-07-21 13:52:22,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 2819 transitions. [2020-07-21 13:52:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-21 13:52:22,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:22,227 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-21 13:52:22,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:22,443 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:22,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1286736905, now seen corresponding path program 1 times [2020-07-21 13:52:22,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:22,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380748449] [2020-07-21 13:52:22,445 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 13:52:22,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:22,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:22,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:22,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:22,654 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:52:22,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:52:22,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380748449] [2020-07-21 13:52:22,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:22,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:22,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594701544] [2020-07-21 13:52:22,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:22,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:22,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:22,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:22,749 INFO L87 Difference]: Start difference. First operand 2577 states and 2819 transitions. Second operand 7 states. [2020-07-21 13:52:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:23,694 INFO L93 Difference]: Finished difference Result 4858 states and 5317 transitions. [2020-07-21 13:52:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 13:52:23,695 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 188 [2020-07-21 13:52:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:23,704 INFO L225 Difference]: With dead ends: 4858 [2020-07-21 13:52:23,705 INFO L226 Difference]: Without dead ends: 2431 [2020-07-21 13:52:23,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 13:52:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2020-07-21 13:52:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2415. [2020-07-21 13:52:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2415 states. [2020-07-21 13:52:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 2564 transitions. [2020-07-21 13:52:23,762 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 2564 transitions. Word has length 188 [2020-07-21 13:52:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:23,763 INFO L479 AbstractCegarLoop]: Abstraction has 2415 states and 2564 transitions. [2020-07-21 13:52:23,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 2564 transitions. [2020-07-21 13:52:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-21 13:52:23,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:23,796 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:52:23,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:23,997 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:23,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:23,998 INFO L82 PathProgramCache]: Analyzing trace with hash -44633951, now seen corresponding path program 1 times [2020-07-21 13:52:23,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:23,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964562114] [2020-07-21 13:52:23,999 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 13:52:24,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:24,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:24,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:24,166 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:24,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:24,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964562114] [2020-07-21 13:52:24,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:24,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:24,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024007960] [2020-07-21 13:52:24,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:24,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:24,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:24,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:24,251 INFO L87 Difference]: Start difference. First operand 2415 states and 2564 transitions. Second operand 6 states. [2020-07-21 13:52:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:24,608 INFO L93 Difference]: Finished difference Result 4666 states and 4959 transitions. [2020-07-21 13:52:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:24,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-21 13:52:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:24,617 INFO L225 Difference]: With dead ends: 4666 [2020-07-21 13:52:24,618 INFO L226 Difference]: Without dead ends: 2401 [2020-07-21 13:52:24,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 384 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 13:52:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2020-07-21 13:52:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2257. [2020-07-21 13:52:24,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2257 states. [2020-07-21 13:52:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 2375 transitions. [2020-07-21 13:52:24,664 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 2375 transitions. Word has length 195 [2020-07-21 13:52:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:24,665 INFO L479 AbstractCegarLoop]: Abstraction has 2257 states and 2375 transitions. [2020-07-21 13:52:24,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 2375 transitions. [2020-07-21 13:52:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-21 13:52:24,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:24,672 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:24,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:24,886 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:24,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:24,886 INFO L82 PathProgramCache]: Analyzing trace with hash 695276175, now seen corresponding path program 1 times [2020-07-21 13:52:24,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:24,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658430073] [2020-07-21 13:52:24,887 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 13:52:25,015 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:25,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:25,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:52:25,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-07-21 13:52:25,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 137 proven. 54 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 13:52:25,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658430073] [2020-07-21 13:52:25,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:25,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:25,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813676643] [2020-07-21 13:52:25,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:25,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:25,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:25,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:25,202 INFO L87 Difference]: Start difference. First operand 2257 states and 2375 transitions. Second operand 7 states. [2020-07-21 13:52:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:26,168 INFO L93 Difference]: Finished difference Result 4794 states and 5045 transitions. [2020-07-21 13:52:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:52:26,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-07-21 13:52:26,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:26,169 INFO L225 Difference]: With dead ends: 4794 [2020-07-21 13:52:26,169 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:52:26,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 468 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 13:52:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:52:26,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:52:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:52:26,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:52:26,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-07-21 13:52:26,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:26,178 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:52:26,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:26,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:52:26,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:52:26,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:26,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:52:28,317 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2020-07-21 13:52:28,853 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-21 13:52:29,365 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2020-07-21 13:52:29,370 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:29,370 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)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:52:29,370 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:29,371 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,371 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,371 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,371 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,371 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:52:29,372 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,373 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:52:29,374 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,375 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 472) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:52:29,376 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,377 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:52:29,378 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,379 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:52:29,380 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,381 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:52:29,382 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:52:29,383 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:52:29,384 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:52:29,385 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:52:29,386 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:52:29,387 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:52:29,388 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:52:29,388 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,388 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,388 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,388 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse8 (<= ~a28~0 |old(~a28~0)|)) (.cse9 (<= ~a17~0 8)) (.cse15 (<= 8 ~a17~0)) (.cse3 (<= 10 ~a28~0)) (.cse10 (= ~a19~0 |old(~a19~0)|)) (.cse24 (= 1 ~a25~0)) (.cse4 (<= ~a11~0 0))) (let ((.cse22 (not (<= |old(~a28~0)| 8))) (.cse14 (or .cse4 (< 0 |old(~a11~0)|))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse5 (not (<= 9 |old(~a28~0)|))) (.cse16 (< ~a28~0 10)) (.cse17 (<= 9 ~a28~0)) (.cse11 (= ~a25~0 |old(~a25~0)|)) (.cse20 (not (< |old(~a28~0)| 10))) (.cse1 (not (<= |old(~a17~0)| 7))) (.cse7 (not (= 1 |old(~a19~0)|))) (.cse12 (not (<= |old(~a28~0)| 7))) (.cse23 (not (= 1 |old(~a25~0)|))) (.cse18 (not (<= 8 |old(~a17~0)|))) (.cse19 (not (<= |old(~a19~0)| 0))) (.cse2 (not (<= 10 |old(~a28~0)|))) (.cse25 (and .cse4 .cse8 .cse9 .cse15 .cse3 .cse10 .cse24)) (.cse13 (not (<= |old(~a17~0)| 8))) (.cse6 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse5 .cse1 .cse6) (or .cse7 (and .cse4 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse6) (or (and .cse14 .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse5 .cse18 .cse19 .cse13 .cse20) (or .cse0 .cse5 (and .cse21 .cse8 .cse10 .cse17) .cse1) (or .cse22 .cse18 .cse19 (and .cse8 .cse14 .cse9 .cse15 .cse10 .cse11) .cse13) (or .cse7 .cse4 .cse5 .cse13 .cse6 .cse20) (or .cse7 .cse22 .cse18 .cse23 (and .cse4 .cse9 .cse15 (<= ~a28~0 8) .cse10 .cse24) .cse13 .cse6) (or .cse7 .cse18 .cse23 .cse25 .cse2 .cse13 .cse6) (or .cse7 (and .cse14 (<= ~a28~0 10) .cse3 .cse10) .cse0 .cse2) (or .cse7 .cse4 .cse1 .cse6) (or .cse7 .cse1 (and .cse21 .cse8 .cse10)) (or .cse7 .cse5 .cse18 (and .cse9 .cse15 .cse10 .cse16 .cse17 .cse11) .cse13 .cse20) (or .cse7 .cse1 .cse2 .cse3) (or .cse7 (and .cse8 .cse9 .cse15 .cse10 .cse24) .cse12 .cse18 .cse23 .cse13) (or .cse23 .cse18 .cse19 .cse2 .cse25 .cse13 .cse6)))) [2020-07-21 13:52:29,388 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:52:29,389 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,390 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:52:29,391 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:29,392 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:52:29,393 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:52:29,394 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:52:29,395 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:52:29,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:52:29,396 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 7)) [2020-07-21 13:52:29,396 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:52:29,396 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:52:29,396 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:52:29,396 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-21 13:52:29,397 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:29,397 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:52:29,397 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse6 (<= 8 ~a17~0)) (.cse2 (= 1 ~a19~0)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a11~0 0)) (.cse13 (<= ~a28~0 7))) (let ((.cse3 (<= ~a17~0 7)) (.cse4 (< 7 |old(~a17~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse0 (or (and .cse2 .cse5 .cse11 .cse6 .cse13) (and .cse2 .cse5 .cse11 (<= ~a28~0 |old(~a28~0)|) (<= ~a19~0 |old(~a19~0)|) .cse13))) (.cse1 (= 1 ~a25~0)) (.cse10 (<= ~a28~0 10)) (.cse7 (not (= 1 |old(~a25~0)|))) (.cse8 (< ~a28~0 10)) (.cse12 (<= ~a19~0 0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (not (<= |old(~a28~0)| 7)) (and .cse2 .cse5 .cse6 .cse7 .cse8 .cse9) (not (<= |old(~a11~0)| 0)) (and .cse10 .cse3 .cse4 .cse9) (and .cse5 .cse11 .cse6 .cse7 .cse12 .cse1) (and .cse0 (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse5 .cse11 .cse6 .cse7 .cse1) (and .cse2 .cse5 .cse6 .cse7 .cse13 .cse1) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse10 (<= 10 ~a28~0)) (and .cse5 .cse6 .cse7 .cse8 .cse12)))) [2020-07-21 13:52:29,397 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:52:29,397 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:52:29,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:52:29 BoogieIcfgContainer [2020-07-21 13:52:29,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:52:29,423 INFO L168 Benchmark]: Toolchain (without parser) took 19711.59 ms. Allocated memory was 145.2 MB in the beginning and 488.6 MB in the end (delta: 343.4 MB). Free memory was 100.3 MB in the beginning and 359.4 MB in the end (delta: -259.1 MB). Peak memory consumption was 356.3 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:29,423 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 13:52:29,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.29 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 173.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:29,425 INFO L168 Benchmark]: Boogie Preprocessor took 105.59 ms. Allocated memory is still 205.5 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:29,426 INFO L168 Benchmark]: RCFGBuilder took 1118.04 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 184.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:29,427 INFO L168 Benchmark]: TraceAbstraction took 17716.25 ms. Allocated memory was 238.6 MB in the beginning and 488.6 MB in the end (delta: 250.1 MB). Free memory was 182.9 MB in the beginning and 359.4 MB in the end (delta: -176.4 MB). Peak memory consumption was 345.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:52:29,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.29 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 173.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.59 ms. Allocated memory is still 205.5 MB. Free memory was 173.2 MB in the beginning and 168.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1118.04 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 168.3 MB in the beginning and 184.4 MB in the end (delta: -16.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17716.25 ms. Allocated memory was 238.6 MB in the beginning and 488.6 MB in the end (delta: 250.1 MB). Free memory was 182.9 MB in the beginning and 359.4 MB in the end (delta: -176.4 MB). Peak memory consumption was 345.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 472]: 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 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && 1 == a25)) || ((1 == a19 && a17 <= 7) && 7 < \old(a17))) || !(\old(a28) <= 7)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && 9 <= a28)) || !(\old(a11) <= 0)) || (((a28 <= 10 && a17 <= 7) && 7 < \old(a17)) && 9 <= a28)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && a19 <= 0) && 1 == a25)) || ((((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && a28 <= 7) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a19 <= \old(a19)) && a28 <= 7)) && a25 == \old(a25))) || (((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && 8 <= a17) && !(1 == \old(a25))) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || !(\old(a17) <= 8)) || ((1 == a19 && a28 <= 10) && 10 <= a28)) || ((((a17 <= \old(a17) && 8 <= a17) && !(1 == \old(a25))) && a28 < 10) && a19 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.6s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1024 SDtfs, 4663 SDslu, 550 SDs, 0 SdLazy, 6677 SolverSat, 1013 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2979 GetRequests, 2916 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2721occurred 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, 420 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 149 PreInvPairs, 203 NumberOfFragments, 1024 HoareAnnotationTreeSize, 149 FomulaSimplifications, 2471 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2112 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1729 NumberOfCodeBlocks, 1729 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2943 ConstructedInterpolants, 0 QuantifiedInterpolants, 949775 SizeOfPredicates, 15 NumberOfNonLiveVariables, 4667 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 1580/1698 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...