/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:06:08,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:06:08,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:06:08,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:06:08,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:06:08,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:06:08,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:06:08,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:06:08,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:06:08,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:06:08,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:06:08,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:06:08,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:06:08,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:06:08,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:06:08,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:06:08,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:06:08,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:06:08,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:06:08,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:06:08,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:06:08,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:06:08,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:06:08,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:06:08,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:06:08,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:06:08,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:06:08,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:06:08,686 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 20:06:08,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:06:08,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:06:08,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:06:08,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:06:08,713 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:06:08,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:06:08,714 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:06:08,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:06:08,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:06:08,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:06:08,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:06:08,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:06:08,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:06:08,716 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:06:08,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:06:08,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:06:08,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:06:08,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:06:08,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:06:08,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:06:08,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:06:08,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:06:08,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:06:08,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:06:08,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:06:08,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:06:08,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:08,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:06:08,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:06:08,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:06:09,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:06:09,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:06:09,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:06:09,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:06:09,078 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:06:09,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-07-21 20:06:09,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e989baf/257ea2c91e964b5f98342fb74e08143f/FLAG7185b37f9 [2020-07-21 20:06:09,725 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:06:09,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label10.c [2020-07-21 20:06:09,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e989baf/257ea2c91e964b5f98342fb74e08143f/FLAG7185b37f9 [2020-07-21 20:06:10,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3e989baf/257ea2c91e964b5f98342fb74e08143f [2020-07-21 20:06:10,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:06:10,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:06:10,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:06:10,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:06:10,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:06:10,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c00943f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10, skipping insertion in model container [2020-07-21 20:06:10,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:06:10,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:06:10,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:06:10,636 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:06:10,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:06:10,840 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:06:10,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10 WrapperNode [2020-07-21 20:06:10,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:06:10,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:06:10,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:06:10,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:06:10,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (1/1) ... [2020-07-21 20:06:10,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:06:10,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:06:10,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:06:10,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:06:10,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (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 20:06:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:06:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:06:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:06:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:06:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:06:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:06:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:06:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:06:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:06:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:06:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:06:12,180 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:06:12,180 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:06:12,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:06:12 BoogieIcfgContainer [2020-07-21 20:06:12,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:06:12,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:06:12,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:06:12,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:06:12,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:06:10" (1/3) ... [2020-07-21 20:06:12,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecd1528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:06:12, skipping insertion in model container [2020-07-21 20:06:12,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:06:10" (2/3) ... [2020-07-21 20:06:12,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecd1528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:06:12, skipping insertion in model container [2020-07-21 20:06:12,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:06:12" (3/3) ... [2020-07-21 20:06:12,204 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label10.c [2020-07-21 20:06:12,215 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:06:12,227 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:06:12,241 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:06:12,277 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:06:12,278 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:06:12,279 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:06:12,279 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:06:12,279 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:06:12,279 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:06:12,279 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:06:12,280 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:06:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 20:06:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 20:06:12,330 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:12,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:12,332 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:12,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:12,340 INFO L82 PathProgramCache]: Analyzing trace with hash 262180542, now seen corresponding path program 1 times [2020-07-21 20:06:12,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:12,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427515302] [2020-07-21 20:06:12,351 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 20:06:12,533 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:12,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:12,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:06:12,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:12,656 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 20:06:12,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:12,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427515302] [2020-07-21 20:06:12,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:12,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:12,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477591306] [2020-07-21 20:06:12,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:12,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:12,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:12,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:12,684 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 20:06:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:13,513 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-21 20:06:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:13,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-21 20:06:13,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:13,532 INFO L225 Difference]: With dead ends: 572 [2020-07-21 20:06:13,532 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 20:06:13,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 20:06:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 20:06:13,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 20:06:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 20:06:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-21 20:06:13,609 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 116 [2020-07-21 20:06:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:13,610 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-21 20:06:13,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-21 20:06:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 20:06:13,615 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:13,615 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:13,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:13,830 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:13,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:13,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1657089323, now seen corresponding path program 1 times [2020-07-21 20:06:13,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:13,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712995764] [2020-07-21 20:06:13,832 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 20:06:13,956 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:13,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:13,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:13,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:14,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:14,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712995764] [2020-07-21 20:06:14,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:14,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:14,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290691441] [2020-07-21 20:06:14,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:14,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:14,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:14,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:14,048 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-21 20:06:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:14,649 INFO L93 Difference]: Finished difference Result 820 states and 1181 transitions. [2020-07-21 20:06:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:14,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 20:06:14,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:14,657 INFO L225 Difference]: With dead ends: 820 [2020-07-21 20:06:14,657 INFO L226 Difference]: Without dead ends: 548 [2020-07-21 20:06:14,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 20:06:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-21 20:06:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-21 20:06:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-21 20:06:14,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 734 transitions. [2020-07-21 20:06:14,700 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 734 transitions. Word has length 126 [2020-07-21 20:06:14,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:14,702 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 734 transitions. [2020-07-21 20:06:14,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 734 transitions. [2020-07-21 20:06:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 20:06:14,706 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:14,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:14,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:14,922 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:14,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1783497359, now seen corresponding path program 1 times [2020-07-21 20:06:14,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:14,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788503847] [2020-07-21 20:06:14,925 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 20:06:15,059 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:15,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:15,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:15,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:15,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:15,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788503847] [2020-07-21 20:06:15,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:15,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:15,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551999375] [2020-07-21 20:06:15,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:15,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:15,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:15,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:15,159 INFO L87 Difference]: Start difference. First operand 548 states and 734 transitions. Second operand 3 states. [2020-07-21 20:06:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:15,765 INFO L93 Difference]: Finished difference Result 1360 states and 1853 transitions. [2020-07-21 20:06:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:15,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-21 20:06:15,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:15,775 INFO L225 Difference]: With dead ends: 1360 [2020-07-21 20:06:15,776 INFO L226 Difference]: Without dead ends: 818 [2020-07-21 20:06:15,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 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 20:06:15,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-21 20:06:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2020-07-21 20:06:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-21 20:06:15,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1060 transitions. [2020-07-21 20:06:15,828 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1060 transitions. Word has length 131 [2020-07-21 20:06:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:15,828 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 1060 transitions. [2020-07-21 20:06:15,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1060 transitions. [2020-07-21 20:06:15,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 20:06:15,834 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:15,834 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:16,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:16,049 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:16,050 INFO L82 PathProgramCache]: Analyzing trace with hash 750316320, now seen corresponding path program 1 times [2020-07-21 20:06:16,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:16,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975923726] [2020-07-21 20:06:16,051 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 20:06:16,184 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:16,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:16,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:16,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:16,253 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:16,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:06:16,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:16,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975923726] [2020-07-21 20:06:16,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:06:16,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 20:06:16,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605450295] [2020-07-21 20:06:16,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 20:06:16,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:16,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 20:06:16,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:06:16,381 INFO L87 Difference]: Start difference. First operand 818 states and 1060 transitions. Second operand 8 states. [2020-07-21 20:06:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:18,473 INFO L93 Difference]: Finished difference Result 3084 states and 4287 transitions. [2020-07-21 20:06:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 20:06:18,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-07-21 20:06:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:18,500 INFO L225 Difference]: With dead ends: 3084 [2020-07-21 20:06:18,500 INFO L226 Difference]: Without dead ends: 2272 [2020-07-21 20:06:18,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:06:18,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-21 20:06:18,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2065. [2020-07-21 20:06:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2065 states. [2020-07-21 20:06:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2574 transitions. [2020-07-21 20:06:18,666 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2574 transitions. Word has length 142 [2020-07-21 20:06:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:18,666 INFO L479 AbstractCegarLoop]: Abstraction has 2065 states and 2574 transitions. [2020-07-21 20:06:18,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 20:06:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2574 transitions. [2020-07-21 20:06:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:06:18,680 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:18,681 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:18,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:18,896 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:18,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:18,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1394209672, now seen corresponding path program 1 times [2020-07-21 20:06:18,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:18,898 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [610490030] [2020-07-21 20:06:18,898 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 20:06:19,007 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:19,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:19,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:06:19,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 20:06:19,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:19,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [610490030] [2020-07-21 20:06:19,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:19,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:06:19,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627884099] [2020-07-21 20:06:19,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:06:19,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:19,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:06:19,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:06:19,057 INFO L87 Difference]: Start difference. First operand 2065 states and 2574 transitions. Second operand 5 states. [2020-07-21 20:06:19,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:19,945 INFO L93 Difference]: Finished difference Result 4710 states and 6033 transitions. [2020-07-21 20:06:19,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:06:19,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-21 20:06:19,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:19,961 INFO L225 Difference]: With dead ends: 4710 [2020-07-21 20:06:19,962 INFO L226 Difference]: Without dead ends: 2655 [2020-07-21 20:06:19,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:06:19,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2020-07-21 20:06:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2353. [2020-07-21 20:06:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-07-21 20:06:20,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3037 transitions. [2020-07-21 20:06:20,042 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3037 transitions. Word has length 149 [2020-07-21 20:06:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:20,042 INFO L479 AbstractCegarLoop]: Abstraction has 2353 states and 3037 transitions. [2020-07-21 20:06:20,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:06:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3037 transitions. [2020-07-21 20:06:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 20:06:20,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:20,050 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:20,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:20,264 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:20,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:20,265 INFO L82 PathProgramCache]: Analyzing trace with hash 403851526, now seen corresponding path program 1 times [2020-07-21 20:06:20,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:20,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541618257] [2020-07-21 20:06:20,266 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 20:06:20,373 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:20,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:20,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:06:20,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:20,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:06:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:06:20,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541618257] [2020-07-21 20:06:20,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:06:20,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:06:20,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795170198] [2020-07-21 20:06:20,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:06:20,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:20,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:06:20,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:06:20,485 INFO L87 Difference]: Start difference. First operand 2353 states and 3037 transitions. Second operand 7 states. [2020-07-21 20:06:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:21,299 INFO L93 Difference]: Finished difference Result 4178 states and 5399 transitions. [2020-07-21 20:06:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:06:21,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-07-21 20:06:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:21,313 INFO L225 Difference]: With dead ends: 4178 [2020-07-21 20:06:21,313 INFO L226 Difference]: Without dead ends: 2242 [2020-07-21 20:06:21,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 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 20:06:21,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2020-07-21 20:06:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 1811. [2020-07-21 20:06:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-07-21 20:06:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2290 transitions. [2020-07-21 20:06:21,389 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2290 transitions. Word has length 150 [2020-07-21 20:06:21,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:21,389 INFO L479 AbstractCegarLoop]: Abstraction has 1811 states and 2290 transitions. [2020-07-21 20:06:21,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:06:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2290 transitions. [2020-07-21 20:06:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-21 20:06:21,396 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:06:21,396 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:06:21,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:21,611 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:06:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:06:21,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1675110515, now seen corresponding path program 1 times [2020-07-21 20:06:21,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:06:21,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652603323] [2020-07-21 20:06:21,613 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 20:06:21,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:06:21,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:06:21,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:06:21,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:06:21,808 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 20:06:21,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:06:21,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652603323] [2020-07-21 20:06:21,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:06:21,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:06:21,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938419038] [2020-07-21 20:06:21,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:06:21,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:06:21,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:06:21,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:06:21,811 INFO L87 Difference]: Start difference. First operand 1811 states and 2290 transitions. Second operand 3 states. [2020-07-21 20:06:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:06:22,278 INFO L93 Difference]: Finished difference Result 1811 states and 2290 transitions. [2020-07-21 20:06:22,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:06:22,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-07-21 20:06:22,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:06:22,285 INFO L225 Difference]: With dead ends: 1811 [2020-07-21 20:06:22,285 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:06:22,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 20:06:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:06:22,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:06:22,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:06:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:06:22,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-07-21 20:06:22,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:06:22,290 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:06:22,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:06:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:06:22,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:06:22,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:06:22,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:06:23,271 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2020-07-21 20:06:23,401 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-07-21 20:06:23,543 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 34 [2020-07-21 20:06:23,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:23,548 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 20:06:23,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,549 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 20:06:23,550 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,551 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 20:06:23,552 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 20:06:23,553 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,554 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 20:06:23,555 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,556 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 20:06:23,557 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,558 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,559 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 20:06:23,560 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 20:06:23,561 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,562 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 20:06:23,563 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 20:06:23,564 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 20:06:23,564 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 20:06:23,564 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 20:06:23,564 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse7 (not (<= 15 |old(~a8~0)|))) (.cse0 (<= ~a8~0 |old(~a8~0)|)) (.cse1 (<= ~a16~0 |old(~a16~0)|)) (.cse2 (= ~a21~0 |old(~a21~0)|)) (.cse6 (<= ~a7~0 0)) (.cse3 (not (<= |old(~a7~0)| 0))) (.cse4 (not (<= |old(~a8~0)| 13))) (.cse5 (not (= 1 |old(~a21~0)|)))) (and (or (and .cse0 .cse1 (<= ~a16~0 5) .cse2) (and (or .cse3 .cse4 .cse5) (or (not (<= |old(~a16~0)| 5)) .cse5)) (and .cse0 .cse1 .cse6 .cse2)) (or (not (<= |old(~a21~0)| 0)) (and .cse0 .cse1 .cse2) .cse4) (or .cse7 .cse6 .cse3 .cse5) (or .cse7 .cse5 (and .cse0 .cse1 (<= 15 ~a8~0) .cse2)) (or .cse6 .cse3 .cse4 (not (<= |old(~a16~0)| 4)) .cse5))) [2020-07-21 20:06:23,564 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 20:06:23,564 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 20:06:23,565 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 20:06:23,566 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,567 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 20:06:23,568 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 20:06:23,569 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 20:06:23,570 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 20:06:23,571 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:06:23,572 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= ~a16~0 5) (<= 15 ~a8~0) (= 1 ~a21~0)) [2020-07-21 20:06:23,572 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:06:23,572 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:06:23,572 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= ~a7~0 0) (<= 15 ~a8~0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a21~0)|))) [2020-07-21 20:06:23,572 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:23,572 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse1) (and .cse0 (<= ~a21~0 0)) (not (= 1 |old(~a21~0)|)))) [2020-07-21 20:06:23,573 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 20:06:23,573 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 20:06:23,573 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a8~0 13))) (or (and .cse0 (<= ~a7~0 0) (= ~a21~0 |old(~a21~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse1) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (<= ~a16~0 5) .cse1) (and .cse0 (<= ~a21~0 0)) (not (= 1 |old(~a21~0)|)))) [2020-07-21 20:06:23,573 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 20:06:23,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:06:23 BoogieIcfgContainer [2020-07-21 20:06:23,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:06:23,596 INFO L168 Benchmark]: Toolchain (without parser) took 13579.54 ms. Allocated memory was 145.8 MB in the beginning and 399.5 MB in the end (delta: 253.8 MB). Free memory was 100.2 MB in the beginning and 250.2 MB in the end (delta: -149.9 MB). Peak memory consumption was 226.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,597 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 170.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,598 INFO L168 Benchmark]: Boogie Preprocessor took 94.51 ms. Allocated memory is still 205.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,599 INFO L168 Benchmark]: RCFGBuilder took 1254.48 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 178.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,600 INFO L168 Benchmark]: TraceAbstraction took 11401.67 ms. Allocated memory was 238.0 MB in the beginning and 399.5 MB in the end (delta: 161.5 MB). Free memory was 176.8 MB in the beginning and 250.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 210.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:06:23,604 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 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 822.13 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 99.8 MB in the beginning and 170.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.51 ms. Allocated memory is still 205.5 MB. Free memory was 170.2 MB in the beginning and 165.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1254.48 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 165.4 MB in the beginning and 178.3 MB in the end (delta: -12.8 MB). Peak memory consumption was 80.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11401.67 ms. Allocated memory was 238.0 MB in the beginning and 399.5 MB in the end (delta: 161.5 MB). Free memory was 176.8 MB in the beginning and 250.2 MB in the end (delta: -73.3 MB). Peak memory consumption was 210.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 506]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((a8 <= 13 && a7 <= 0) && a21 == \old(a21)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || !(\old(a7) <= 0)) || !(\old(a16) <= 5)) || (a16 <= 5 && 1 == a21)) || (a8 <= 13 && a21 <= 0)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 594 SDtfs, 2076 SDslu, 203 SDs, 0 SdLazy, 4387 SolverSat, 728 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1283 GetRequests, 1256 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2353occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 940 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 62 PreInvPairs, 90 NumberOfFragments, 281 HoareAnnotationTreeSize, 62 FomulaSimplifications, 1637 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 709 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1267 ConstructedInterpolants, 0 QuantifiedInterpolants, 351466 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2826 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 280/288 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...