/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:49:30,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:49:30,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:49:30,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:49:30,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:49:30,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:49:30,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:49:30,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:49:30,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:49:30,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:49:30,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:49:30,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:49:30,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:49:30,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:49:30,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:49:30,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:49:30,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:49:30,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:49:30,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:49:30,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:49:30,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:49:30,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:49:30,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:49:30,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:49:30,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 13:49:30,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 13:49:30,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 13:49:30,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 13:49:30,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 13:49:30,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 13:49:30,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 13:49:30,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 13:49:30,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 13:49:30,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 13:49:30,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 13:49:30,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 13:49:30,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 13:49:30,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 13:49:30,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:49:30,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:49:30,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:49:30,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 13:49:30,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:49:30,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:49:30,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:49:30,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:49:30,682 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:49:30,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:49:30,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:49:30,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:49:30,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:49:30,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:49:30,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:49:30,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:49:30,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:49:30,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:49:30,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:49:30,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:49:30,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:49:30,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:49:30,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:49:30,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:49:30,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:49:30,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:49:30,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:49:30,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:49:30,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:49:30,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:49:30,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:30,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:49:30,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:49:30,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:49:30,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:49:30,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:49:30,968 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:49:30,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:49:30,970 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:49:30,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-21 13:49:31,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20397afc/a83a586d4c4a4ce79f6f47b01bd997dd/FLAG5161c6114 [2020-07-21 13:49:31,668 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:49:31,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label53.c [2020-07-21 13:49:31,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20397afc/a83a586d4c4a4ce79f6f47b01bd997dd/FLAG5161c6114 [2020-07-21 13:49:31,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20397afc/a83a586d4c4a4ce79f6f47b01bd997dd [2020-07-21 13:49:31,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:49:31,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:49:31,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:49:31,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:49:31,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:49:31,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:49:31" (1/1) ... [2020-07-21 13:49:31,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402bb5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:31, skipping insertion in model container [2020-07-21 13:49:31,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:49:31" (1/1) ... [2020-07-21 13:49:31,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:49:31,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:49:32,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:49:32,366 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:49:32,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:49:32,615 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:49:32,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32 WrapperNode [2020-07-21 13:49:32,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:49:32,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:49:32,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:49:32,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:49:32,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... [2020-07-21 13:49:32,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:49:32,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:49:32,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:49:32,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:49:32,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:49:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:49:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:49:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:49:32,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:49:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:49:34,120 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:49:34,121 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:49:34,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:49:34 BoogieIcfgContainer [2020-07-21 13:49:34,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:49:34,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:49:34,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:49:34,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:49:34,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:49:31" (1/3) ... [2020-07-21 13:49:34,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e59d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:49:34, skipping insertion in model container [2020-07-21 13:49:34,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:49:32" (2/3) ... [2020-07-21 13:49:34,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24e59d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:49:34, skipping insertion in model container [2020-07-21 13:49:34,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:49:34" (3/3) ... [2020-07-21 13:49:34,146 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label53.c [2020-07-21 13:49:34,158 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:49:34,171 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:49:34,184 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:49:34,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:49:34,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:49:34,210 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:49:34,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:49:34,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:49:34,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:49:34,211 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:49:34,211 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:49:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 13:49:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 13:49:34,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:34,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:34,249 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:34,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:34,255 INFO L82 PathProgramCache]: Analyzing trace with hash 597031182, now seen corresponding path program 1 times [2020-07-21 13:49:34,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:34,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026014655] [2020-07-21 13:49:34,266 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:34,486 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:34,486 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:34,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:49:34,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:34,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:34,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026014655] [2020-07-21 13:49:34,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:34,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:49:34,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095054423] [2020-07-21 13:49:34,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:49:34,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:34,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:49:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:34,636 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 13:49:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:35,506 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 13:49:35,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:49:35,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-21 13:49:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:35,543 INFO L225 Difference]: With dead ends: 547 [2020-07-21 13:49:35,543 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 13:49:35,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 13:49:35,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 13:49:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 13:49:35,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-21 13:49:35,676 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 120 [2020-07-21 13:49:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:35,678 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-21 13:49:35,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:49:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-21 13:49:35,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 13:49:35,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:35,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:35,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:35,905 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:35,906 INFO L82 PathProgramCache]: Analyzing trace with hash 330455461, now seen corresponding path program 1 times [2020-07-21 13:49:35,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:35,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665851024] [2020-07-21 13:49:35,908 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:36,028 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:36,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:36,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:49:36,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:36,107 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 13:49:36,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:36,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665851024] [2020-07-21 13:49:36,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:36,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:49:36,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444375487] [2020-07-21 13:49:36,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:49:36,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:36,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:49:36,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:49:36,111 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 5 states. [2020-07-21 13:49:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:36,973 INFO L93 Difference]: Finished difference Result 701 states and 1021 transitions. [2020-07-21 13:49:36,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:49:36,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-07-21 13:49:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:36,982 INFO L225 Difference]: With dead ends: 701 [2020-07-21 13:49:36,983 INFO L226 Difference]: Without dead ends: 429 [2020-07-21 13:49:36,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 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 13:49:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-07-21 13:49:37,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 417. [2020-07-21 13:49:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 13:49:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-07-21 13:49:37,027 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 130 [2020-07-21 13:49:37,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:37,028 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-07-21 13:49:37,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:49:37,028 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-07-21 13:49:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-07-21 13:49:37,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:37,031 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:37,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:37,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:37,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash -46995225, now seen corresponding path program 1 times [2020-07-21 13:49:37,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:37,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206303901] [2020-07-21 13:49:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:37,370 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:37,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:37,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:49:37,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:37,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:37,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206303901] [2020-07-21 13:49:37,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:37,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:49:37,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290442576] [2020-07-21 13:49:37,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:49:37,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:37,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:49:37,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:37,417 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 3 states. [2020-07-21 13:49:38,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:38,005 INFO L93 Difference]: Finished difference Result 1235 states and 1769 transitions. [2020-07-21 13:49:38,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:49:38,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-07-21 13:49:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:38,019 INFO L225 Difference]: With dead ends: 1235 [2020-07-21 13:49:38,019 INFO L226 Difference]: Without dead ends: 824 [2020-07-21 13:49:38,021 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 13:49:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-21 13:49:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 689. [2020-07-21 13:49:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-07-21 13:49:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 919 transitions. [2020-07-21 13:49:38,057 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 919 transitions. Word has length 131 [2020-07-21 13:49:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:38,058 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 919 transitions. [2020-07-21 13:49:38,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:49:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 919 transitions. [2020-07-21 13:49:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 13:49:38,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:38,062 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:38,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:38,276 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:38,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:38,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1219225115, now seen corresponding path program 1 times [2020-07-21 13:49:38,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:38,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356557611] [2020-07-21 13:49:38,278 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:38,421 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:38,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:38,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:49:38,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:38,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:38,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356557611] [2020-07-21 13:49:38,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:38,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:49:38,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853106412] [2020-07-21 13:49:38,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:49:38,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:38,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:49:38,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:38,498 INFO L87 Difference]: Start difference. First operand 689 states and 919 transitions. Second operand 3 states. [2020-07-21 13:49:39,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:39,113 INFO L93 Difference]: Finished difference Result 2051 states and 2809 transitions. [2020-07-21 13:49:39,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:49:39,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 13:49:39,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:39,129 INFO L225 Difference]: With dead ends: 2051 [2020-07-21 13:49:39,129 INFO L226 Difference]: Without dead ends: 1368 [2020-07-21 13:49:39,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:39,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-07-21 13:49:39,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1368. [2020-07-21 13:49:39,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1368 states. [2020-07-21 13:49:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1798 transitions. [2020-07-21 13:49:39,185 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1798 transitions. Word has length 137 [2020-07-21 13:49:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:39,186 INFO L479 AbstractCegarLoop]: Abstraction has 1368 states and 1798 transitions. [2020-07-21 13:49:39,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:49:39,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1798 transitions. [2020-07-21 13:49:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 13:49:39,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:39,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:39,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:39,406 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:39,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash -2034569339, now seen corresponding path program 1 times [2020-07-21 13:49:39,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:39,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112857603] [2020-07-21 13:49:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:39,537 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:39,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:39,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:49:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:39,577 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:39,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:39,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112857603] [2020-07-21 13:49:39,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:39,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:49:39,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770446164] [2020-07-21 13:49:39,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:49:39,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:39,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:49:39,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:39,581 INFO L87 Difference]: Start difference. First operand 1368 states and 1798 transitions. Second operand 3 states. [2020-07-21 13:49:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:40,127 INFO L93 Difference]: Finished difference Result 3135 states and 4212 transitions. [2020-07-21 13:49:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:49:40,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-21 13:49:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:40,146 INFO L225 Difference]: With dead ends: 3135 [2020-07-21 13:49:40,146 INFO L226 Difference]: Without dead ends: 1773 [2020-07-21 13:49:40,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:40,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2020-07-21 13:49:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1773. [2020-07-21 13:49:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2020-07-21 13:49:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2284 transitions. [2020-07-21 13:49:40,231 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2284 transitions. Word has length 146 [2020-07-21 13:49:40,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:40,232 INFO L479 AbstractCegarLoop]: Abstraction has 1773 states and 2284 transitions. [2020-07-21 13:49:40,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:49:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2284 transitions. [2020-07-21 13:49:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 13:49:40,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:40,248 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:40,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:40,462 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:40,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1521407610, now seen corresponding path program 1 times [2020-07-21 13:49:40,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:40,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581562686] [2020-07-21 13:49:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:40,582 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:40,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:40,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:49:40,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:40,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:49:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:49:40,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581562686] [2020-07-21 13:49:40,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:49:40,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:49:40,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549431580] [2020-07-21 13:49:40,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:49:40,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:40,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:49:40,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:49:40,760 INFO L87 Difference]: Start difference. First operand 1773 states and 2284 transitions. Second operand 6 states. [2020-07-21 13:49:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:41,498 INFO L93 Difference]: Finished difference Result 3878 states and 5128 transitions. [2020-07-21 13:49:41,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:49:41,498 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-21 13:49:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:41,512 INFO L225 Difference]: With dead ends: 3878 [2020-07-21 13:49:41,512 INFO L226 Difference]: Without dead ends: 2111 [2020-07-21 13:49:41,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:49:41,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2020-07-21 13:49:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 1797. [2020-07-21 13:49:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2020-07-21 13:49:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2210 transitions. [2020-07-21 13:49:41,594 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2210 transitions. Word has length 175 [2020-07-21 13:49:41,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:41,595 INFO L479 AbstractCegarLoop]: Abstraction has 1797 states and 2210 transitions. [2020-07-21 13:49:41,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:49:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2210 transitions. [2020-07-21 13:49:41,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 13:49:41,602 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:49:41,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:49:41,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:41,816 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:49:41,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:49:41,817 INFO L82 PathProgramCache]: Analyzing trace with hash 795457010, now seen corresponding path program 1 times [2020-07-21 13:49:41,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:49:41,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648494709] [2020-07-21 13:49:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:41,958 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:49:41,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:49:41,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:49:41,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:49:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 13:49:42,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:49:42,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648494709] [2020-07-21 13:49:42,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:49:42,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:49:42,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228993462] [2020-07-21 13:49:42,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:49:42,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:49:42,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:49:42,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:42,015 INFO L87 Difference]: Start difference. First operand 1797 states and 2210 transitions. Second operand 3 states. [2020-07-21 13:49:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:49:42,587 INFO L93 Difference]: Finished difference Result 4809 states and 6006 transitions. [2020-07-21 13:49:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:49:42,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-07-21 13:49:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:49:42,590 INFO L225 Difference]: With dead ends: 4809 [2020-07-21 13:49:42,590 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:49:42,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:49:42,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:49:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:49:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:49:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:49:42,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2020-07-21 13:49:42,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:49:42,604 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:49:42,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:49:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:49:42,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:49:42,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:49:42,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:49:43,773 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2020-07-21 13:49:43,899 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-07-21 13:49:44,019 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-07-21 13:49:44,023 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:49:44,024 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 13:49:44,024 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:49:44,024 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 13:49:44,024 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 13:49:44,024 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,024 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 13:49:44,025 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 13:49:44,026 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,027 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 13:49:44,028 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 518) no Hoare annotation was computed. [2020-07-21 13:49:44,029 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,030 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 13:49:44,031 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,032 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 13:49:44,033 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 13:49:44,034 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 13:49:44,035 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,036 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 13:49:44,037 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 13:49:44,038 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,039 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 13:49:44,040 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,041 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 13:49:44,042 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 13:49:44,043 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 13:49:44,043 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 13:49:44,043 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 13:49:44,043 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 13:49:44,043 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (not (= 1 |old(~a20~0)|))) (.cse3 (= 1 ~a20~0)) (.cse4 (not (<= 15 |old(~a8~0)|))) (.cse9 (<= 5 ~a16~0)) (.cse10 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a8~0)| 13))) (.cse8 (<= ~a8~0 13)) (.cse5 (<= ~a16~0 |old(~a16~0)|)) (.cse12 (<= ~a17~0 0)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse7 (not (= 1 |old(~a21~0)|))) (.cse11 (not (<= |old(~a17~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (and .cse5 (<= 15 ~a8~0) .cse6) .cse7) (or .cse0 .cse2 (and .cse5 .cse8 .cse9 .cse3 .cse6) .cse10 .cse7) (or .cse9 .cse1 .cse10 .cse7 .cse11) (or .cse0 .cse2 (and .cse5 .cse8 .cse12 .cse3 .cse6) .cse11) (or .cse4 .cse12 .cse7 .cse11) (or .cse0 .cse4 .cse3 .cse7) (or .cse0 .cse1 .cse7 (and .cse5 .cse3 .cse6)) (or .cse4 .cse9 .cse10 .cse7) (or .cse1 .cse2 (and .cse5 .cse8 .cse6)) (or (and .cse5 .cse12 .cse6) .cse1 .cse7 .cse11))) [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,044 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 13:49:44,045 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,046 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 13:49:44,047 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,048 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 13:49:44,049 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 13:49:44,050 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:49:44,051 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 13:49:44,051 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:49:44,051 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:49:44,051 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 13:49:44,051 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:49:44,051 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse2) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)))) [2020-07-21 13:49:44,052 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 13:49:44,052 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 13:49:44,052 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= 1 ~a21~0)) (.cse1 (<= ~a16~0 5)) (.cse3 (<= ~a8~0 13)) (.cse4 (<= ~a17~0 0)) (.cse2 (= 1 ~a20~0))) (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (<= 15 ~a8~0) .cse0) (and .cse1 .cse0 .cse2) (and .cse3 .cse0 .cse2) (not (<= |old(~a16~0)| 5)) (and .cse4 .cse1 .cse0) (and .cse3 .cse1) (and .cse3 .cse4 .cse2) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)))) [2020-07-21 13:49:44,052 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 13:49:44,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:49:44 BoogieIcfgContainer [2020-07-21 13:49:44,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:49:44,081 INFO L168 Benchmark]: Toolchain (without parser) took 12168.67 ms. Allocated memory was 137.9 MB in the beginning and 370.7 MB in the end (delta: 232.8 MB). Free memory was 100.5 MB in the beginning and 224.9 MB in the end (delta: -124.4 MB). Peak memory consumption was 248.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,082 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.57 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.1 MB in the beginning and 170.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,085 INFO L168 Benchmark]: Boogie Preprocessor took 120.38 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,086 INFO L168 Benchmark]: RCFGBuilder took 1396.74 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 181.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,090 INFO L168 Benchmark]: TraceAbstraction took 9940.64 ms. Allocated memory was 237.0 MB in the beginning and 370.7 MB in the end (delta: 133.7 MB). Free memory was 179.6 MB in the beginning and 224.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 228.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:49:44,098 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.57 ms. Allocated memory was 137.9 MB in the beginning and 205.0 MB in the end (delta: 67.1 MB). Free memory was 100.1 MB in the beginning and 170.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.38 ms. Allocated memory is still 205.0 MB. Free memory was 170.7 MB in the beginning and 165.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1396.74 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 165.8 MB in the beginning and 181.0 MB in the end (delta: -15.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9940.64 ms. Allocated memory was 237.0 MB in the beginning and 370.7 MB in the end (delta: 133.7 MB). Free memory was 179.6 MB in the beginning and 224.9 MB in the end (delta: -45.4 MB). Peak memory consumption was 228.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 518]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a20)) || !(15 <= \old(a8))) || (15 <= a8 && 1 == a21)) || ((a16 <= 5 && 1 == a21) && 1 == a20)) || ((a8 <= 13 && 1 == a21) && 1 == a20)) || !(\old(a16) <= 5)) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || (a8 <= 13 && a16 <= 5)) || ((a8 <= 13 && a17 <= 0) && 1 == a20)) || !(5 <= \old(a16))) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 601 SDtfs, 1062 SDslu, 136 SDs, 0 SdLazy, 2860 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1193 GetRequests, 1175 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1797occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 461 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 75 PreInvPairs, 119 NumberOfFragments, 442 HoareAnnotationTreeSize, 75 FomulaSimplifications, 2372 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 819 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1018 NumberOfCodeBlocks, 1018 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 413079 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2707 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 236/240 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...