/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:06:57,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:06:57,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:06:57,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:06:57,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:06:57,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:06:57,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:06:57,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:06:57,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:06:57,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:06:57,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:06:57,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:06:57,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:06:57,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:06:57,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:06:57,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:06:57,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:06:57,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:06:57,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:06:57,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:06:57,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:06:57,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:06:57,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:06:57,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:06:57,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 14:06:57,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 14:06:57,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 14:06:57,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 14:06:57,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 14:06:57,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 14:06:57,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 14:06:57,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 14:06:57,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 14:06:57,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 14:06:57,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 14:06:57,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 14:06:57,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 14:06:57,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 14:06:57,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:06:57,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:06:57,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:06:57,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:06:57,578 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:06:57,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:06:57,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:06:57,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:06:57,580 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:06:57,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:06:57,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:06:57,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:06:57,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:06:57,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:06:57,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:06:57,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:06:57,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:06:57,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:06:57,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:06:57,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:06:57,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:06:57,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:06:57,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:06:57,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:06:57,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:06:57,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:06:57,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:06:57,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:06:57,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:06:57,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:06:57,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:57,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:06:57,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:06:57,585 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 -> 4 [2020-07-20 14:06:57,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:06:57,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:06:57,899 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:06:57,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:06:57,903 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:06:57,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 14:06:57,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861004c42/48613647c5e24aaea40ace27b4434e33/FLAG15135f1c0 [2020-07-20 14:06:58,592 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:06:58,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label19.c [2020-07-20 14:06:58,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861004c42/48613647c5e24aaea40ace27b4434e33/FLAG15135f1c0 [2020-07-20 14:06:58,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/861004c42/48613647c5e24aaea40ace27b4434e33 [2020-07-20 14:06:58,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:06:58,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:06:58,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:58,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:06:58,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:06:58,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:58" (1/1) ... [2020-07-20 14:06:58,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d24e66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:58, skipping insertion in model container [2020-07-20 14:06:58,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:58" (1/1) ... [2020-07-20 14:06:58,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:06:58,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:06:59,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:59,332 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:06:59,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:59,603 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:06:59,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59 WrapperNode [2020-07-20 14:06:59,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:59,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:06:59,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:06:59,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:06:59,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... [2020-07-20 14:06:59,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:06:59,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:06:59,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:06:59,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:06:59,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:06:59,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:06:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:06:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:06:59,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:06:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:06:59,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:07:01,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:07:01,007 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:07:01,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:01 BoogieIcfgContainer [2020-07-20 14:07:01,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:07:01,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:07:01,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:07:01,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:07:01,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:06:58" (1/3) ... [2020-07-20 14:07:01,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f778398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:01, skipping insertion in model container [2020-07-20 14:07:01,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:59" (2/3) ... [2020-07-20 14:07:01,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f778398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:07:01, skipping insertion in model container [2020-07-20 14:07:01,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:07:01" (3/3) ... [2020-07-20 14:07:01,030 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2020-07-20 14:07:01,042 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:07:01,055 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:07:01,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:07:01,104 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:07:01,105 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:07:01,105 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:07:01,105 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:07:01,105 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:07:01,106 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:07:01,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:07:01,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:07:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:07:01,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-20 14:07:01,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:01,153 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] [2020-07-20 14:07:01,153 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:01,161 INFO L82 PathProgramCache]: Analyzing trace with hash 797442718, now seen corresponding path program 1 times [2020-07-20 14:07:01,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:01,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787530683] [2020-07-20 14:07:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:01,375 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:01,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:01,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:01,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:01,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:01,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787530683] [2020-07-20 14:07:01,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:01,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:01,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656453815] [2020-07-20 14:07:01,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:01,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:01,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:01,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:01,510 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:07:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:02,459 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 14:07:02,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:02,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2020-07-20 14:07:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:02,480 INFO L225 Difference]: With dead ends: 615 [2020-07-20 14:07:02,480 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 14:07:02,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:02,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 14:07:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 14:07:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 14:07:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 14:07:02,628 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 98 [2020-07-20 14:07:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:02,631 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 14:07:02,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 14:07:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 14:07:02,650 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:02,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:02,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:02,865 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:02,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:02,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1720377347, now seen corresponding path program 1 times [2020-07-20 14:07:02,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:02,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892477226] [2020-07-20 14:07:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:02,971 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:02,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:02,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:02,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:03,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:03,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892477226] [2020-07-20 14:07:03,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:03,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:03,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703397670] [2020-07-20 14:07:03,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:03,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:03,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:03,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:03,027 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-20 14:07:03,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:03,565 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-20 14:07:03,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:07:03,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-20 14:07:03,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:03,574 INFO L225 Difference]: With dead ends: 629 [2020-07-20 14:07:03,574 INFO L226 Difference]: Without dead ends: 318 [2020-07-20 14:07:03,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-20 14:07:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-20 14:07:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 14:07:03,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-20 14:07:03,596 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 113 [2020-07-20 14:07:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:03,597 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-20 14:07:03,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-20 14:07:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 14:07:03,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:03,600 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:03,812 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:03,814 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:03,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:03,816 INFO L82 PathProgramCache]: Analyzing trace with hash -540211274, now seen corresponding path program 1 times [2020-07-20 14:07:03,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:03,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372664795] [2020-07-20 14:07:03,817 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:03,928 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:03,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:03,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:07:03,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:03,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:03,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372664795] [2020-07-20 14:07:03,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:03,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:03,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225611310] [2020-07-20 14:07:03,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:03,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:03,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:03,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:03,978 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-20 14:07:04,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:04,865 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-20 14:07:04,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:04,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2020-07-20 14:07:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:04,871 INFO L225 Difference]: With dead ends: 923 [2020-07-20 14:07:04,872 INFO L226 Difference]: Without dead ends: 621 [2020-07-20 14:07:04,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:07:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-20 14:07:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 605. [2020-07-20 14:07:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-20 14:07:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 764 transitions. [2020-07-20 14:07:04,933 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 764 transitions. Word has length 120 [2020-07-20 14:07:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:04,934 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 764 transitions. [2020-07-20 14:07:04,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 764 transitions. [2020-07-20 14:07:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-20 14:07:04,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:04,938 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] [2020-07-20 14:07:05,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:05,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:05,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:05,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1255105582, now seen corresponding path program 1 times [2020-07-20 14:07:05,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:05,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930501900] [2020-07-20 14:07:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:05,282 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:05,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:05,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:07:05,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:05,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:05,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930501900] [2020-07-20 14:07:05,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:05,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:05,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432655099] [2020-07-20 14:07:05,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:05,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:05,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:05,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:05,344 INFO L87 Difference]: Start difference. First operand 605 states and 764 transitions. Second operand 5 states. [2020-07-20 14:07:06,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:06,189 INFO L93 Difference]: Finished difference Result 1682 states and 2209 transitions. [2020-07-20 14:07:06,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:06,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-07-20 14:07:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:06,198 INFO L225 Difference]: With dead ends: 1682 [2020-07-20 14:07:06,198 INFO L226 Difference]: Without dead ends: 1083 [2020-07-20 14:07:06,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:07:06,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2020-07-20 14:07:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1067. [2020-07-20 14:07:06,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1067 states. [2020-07-20 14:07:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1323 transitions. [2020-07-20 14:07:06,258 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1323 transitions. Word has length 124 [2020-07-20 14:07:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:06,259 INFO L479 AbstractCegarLoop]: Abstraction has 1067 states and 1323 transitions. [2020-07-20 14:07:06,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1323 transitions. [2020-07-20 14:07:06,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 14:07:06,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:06,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:06,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:06,482 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:06,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:06,482 INFO L82 PathProgramCache]: Analyzing trace with hash 741492135, now seen corresponding path program 1 times [2020-07-20 14:07:06,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:06,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058274723] [2020-07-20 14:07:06,483 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:06,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:06,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:06,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:06,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:06,626 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:06,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:06,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058274723] [2020-07-20 14:07:06,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:06,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:06,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573851282] [2020-07-20 14:07:06,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:06,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:06,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:06,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:06,743 INFO L87 Difference]: Start difference. First operand 1067 states and 1323 transitions. Second operand 6 states. [2020-07-20 14:07:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:07,535 INFO L93 Difference]: Finished difference Result 2290 states and 2871 transitions. [2020-07-20 14:07:07,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:07:07,536 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-20 14:07:07,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:07,543 INFO L225 Difference]: With dead ends: 2290 [2020-07-20 14:07:07,544 INFO L226 Difference]: Without dead ends: 1229 [2020-07-20 14:07:07,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:07,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-07-20 14:07:07,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1223. [2020-07-20 14:07:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2020-07-20 14:07:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1481 transitions. [2020-07-20 14:07:07,587 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1481 transitions. Word has length 129 [2020-07-20 14:07:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:07,588 INFO L479 AbstractCegarLoop]: Abstraction has 1223 states and 1481 transitions. [2020-07-20 14:07:07,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:07,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1481 transitions. [2020-07-20 14:07:07,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 14:07:07,591 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:07,592 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:07:07,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:07,806 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:07,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1004016671, now seen corresponding path program 1 times [2020-07-20 14:07:07,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:07,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1331596175] [2020-07-20 14:07:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:07,908 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:07,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:07,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:07,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:07,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:07,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1331596175] [2020-07-20 14:07:07,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:07,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:07,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740277696] [2020-07-20 14:07:07,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:07,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:07,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:07,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:07,956 INFO L87 Difference]: Start difference. First operand 1223 states and 1481 transitions. Second operand 3 states. [2020-07-20 14:07:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:08,524 INFO L93 Difference]: Finished difference Result 2884 states and 3595 transitions. [2020-07-20 14:07:08,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:08,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 14:07:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:08,536 INFO L225 Difference]: With dead ends: 2884 [2020-07-20 14:07:08,536 INFO L226 Difference]: Without dead ends: 1367 [2020-07-20 14:07:08,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:08,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2020-07-20 14:07:08,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1221. [2020-07-20 14:07:08,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1221 states. [2020-07-20 14:07:08,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1384 transitions. [2020-07-20 14:07:08,596 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1384 transitions. Word has length 133 [2020-07-20 14:07:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:08,598 INFO L479 AbstractCegarLoop]: Abstraction has 1221 states and 1384 transitions. [2020-07-20 14:07:08,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1384 transitions. [2020-07-20 14:07:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 14:07:08,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:08,602 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:08,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:08,816 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:08,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:08,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1254253877, now seen corresponding path program 1 times [2020-07-20 14:07:08,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:08,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213278425] [2020-07-20 14:07:08,818 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:08,917 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:08,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:08,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:07:08,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:08,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:07:09,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213278425] [2020-07-20 14:07:09,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:09,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:09,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812480886] [2020-07-20 14:07:09,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:09,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:09,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:09,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:09,017 INFO L87 Difference]: Start difference. First operand 1221 states and 1384 transitions. Second operand 6 states. [2020-07-20 14:07:10,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:10,105 INFO L93 Difference]: Finished difference Result 3338 states and 3778 transitions. [2020-07-20 14:07:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:07:10,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-20 14:07:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:10,118 INFO L225 Difference]: With dead ends: 3338 [2020-07-20 14:07:10,118 INFO L226 Difference]: Without dead ends: 1969 [2020-07-20 14:07:10,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-07-20 14:07:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1966. [2020-07-20 14:07:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-07-20 14:07:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2159 transitions. [2020-07-20 14:07:10,177 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2159 transitions. Word has length 146 [2020-07-20 14:07:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:10,178 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 2159 transitions. [2020-07-20 14:07:10,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2159 transitions. [2020-07-20 14:07:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-07-20 14:07:10,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:10,184 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:10,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:10,397 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:10,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:10,398 INFO L82 PathProgramCache]: Analyzing trace with hash 2108658743, now seen corresponding path program 1 times [2020-07-20 14:07:10,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:10,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284480859] [2020-07-20 14:07:10,399 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:10,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:10,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:10,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:10,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:10,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:07:10,665 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 14:07:10,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284480859] [2020-07-20 14:07:10,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:07:10,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:07:10,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224105269] [2020-07-20 14:07:10,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:07:10,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:10,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:07:10,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:10,667 INFO L87 Difference]: Start difference. First operand 1966 states and 2159 transitions. Second operand 6 states. [2020-07-20 14:07:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:11,488 INFO L93 Difference]: Finished difference Result 3485 states and 3836 transitions. [2020-07-20 14:07:11,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:07:11,488 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2020-07-20 14:07:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:11,496 INFO L225 Difference]: With dead ends: 3485 [2020-07-20 14:07:11,497 INFO L226 Difference]: Without dead ends: 1824 [2020-07-20 14:07:11,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 360 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:07:11,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2020-07-20 14:07:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1670. [2020-07-20 14:07:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1670 states. [2020-07-20 14:07:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 1811 transitions. [2020-07-20 14:07:11,545 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 1811 transitions. Word has length 182 [2020-07-20 14:07:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:11,546 INFO L479 AbstractCegarLoop]: Abstraction has 1670 states and 1811 transitions. [2020-07-20 14:07:11,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:07:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 1811 transitions. [2020-07-20 14:07:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 14:07:11,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:11,551 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:07:11,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:11,766 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:11,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:11,766 INFO L82 PathProgramCache]: Analyzing trace with hash 698359958, now seen corresponding path program 1 times [2020-07-20 14:07:11,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:11,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062279544] [2020-07-20 14:07:11,768 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:11,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:11,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:11,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 14:07:11,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-20 14:07:11,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:11,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062279544] [2020-07-20 14:07:11,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:11,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:07:11,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885406003] [2020-07-20 14:07:11,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:07:11,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:11,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:07:11,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:07:11,998 INFO L87 Difference]: Start difference. First operand 1670 states and 1811 transitions. Second operand 5 states. [2020-07-20 14:07:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:12,679 INFO L93 Difference]: Finished difference Result 3945 states and 4311 transitions. [2020-07-20 14:07:12,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:07:12,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2020-07-20 14:07:12,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:12,693 INFO L225 Difference]: With dead ends: 3945 [2020-07-20 14:07:12,694 INFO L226 Difference]: Without dead ends: 2725 [2020-07-20 14:07:12,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:07:12,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2020-07-20 14:07:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2581. [2020-07-20 14:07:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2581 states. [2020-07-20 14:07:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 2832 transitions. [2020-07-20 14:07:12,776 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 2832 transitions. Word has length 204 [2020-07-20 14:07:12,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:12,777 INFO L479 AbstractCegarLoop]: Abstraction has 2581 states and 2832 transitions. [2020-07-20 14:07:12,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:07:12,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 2832 transitions. [2020-07-20 14:07:12,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-20 14:07:12,787 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:12,787 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:13,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:13,002 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:13,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:13,003 INFO L82 PathProgramCache]: Analyzing trace with hash 772945334, now seen corresponding path program 1 times [2020-07-20 14:07:13,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:13,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879503872] [2020-07-20 14:07:13,004 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:13,149 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:13,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:13,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:07:13,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-20 14:07:13,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:13,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879503872] [2020-07-20 14:07:13,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:13,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:13,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76170763] [2020-07-20 14:07:13,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:13,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:13,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:13,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:13,207 INFO L87 Difference]: Start difference. First operand 2581 states and 2832 transitions. Second operand 3 states. [2020-07-20 14:07:13,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:13,715 INFO L93 Difference]: Finished difference Result 5740 states and 6391 transitions. [2020-07-20 14:07:13,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:13,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-20 14:07:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:13,728 INFO L225 Difference]: With dead ends: 5740 [2020-07-20 14:07:13,729 INFO L226 Difference]: Without dead ends: 3157 [2020-07-20 14:07:13,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2020-07-20 14:07:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 3153. [2020-07-20 14:07:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3153 states. [2020-07-20 14:07:13,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 3440 transitions. [2020-07-20 14:07:13,809 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 3440 transitions. Word has length 204 [2020-07-20 14:07:13,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:13,809 INFO L479 AbstractCegarLoop]: Abstraction has 3153 states and 3440 transitions. [2020-07-20 14:07:13,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:13,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 3440 transitions. [2020-07-20 14:07:13,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 14:07:13,817 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:13,817 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-20 14:07:14,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:14,032 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:14,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:14,032 INFO L82 PathProgramCache]: Analyzing trace with hash 511642924, now seen corresponding path program 1 times [2020-07-20 14:07:14,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:14,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364960402] [2020-07-20 14:07:14,033 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:14,170 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:14,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:14,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 14:07:14,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:14,213 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-07-20 14:07:14,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:14,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364960402] [2020-07-20 14:07:14,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:14,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:14,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077761220] [2020-07-20 14:07:14,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:14,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:14,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:14,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:14,216 INFO L87 Difference]: Start difference. First operand 3153 states and 3440 transitions. Second operand 3 states. [2020-07-20 14:07:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:14,662 INFO L93 Difference]: Finished difference Result 5087 states and 5536 transitions. [2020-07-20 14:07:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:14,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-20 14:07:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:14,674 INFO L225 Difference]: With dead ends: 5087 [2020-07-20 14:07:14,674 INFO L226 Difference]: Without dead ends: 3124 [2020-07-20 14:07:14,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:14,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-07-20 14:07:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 2836. [2020-07-20 14:07:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2836 states. [2020-07-20 14:07:14,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 3063 transitions. [2020-07-20 14:07:14,807 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 3063 transitions. Word has length 229 [2020-07-20 14:07:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:14,808 INFO L479 AbstractCegarLoop]: Abstraction has 2836 states and 3063 transitions. [2020-07-20 14:07:14,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 3063 transitions. [2020-07-20 14:07:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 14:07:14,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:07:14,817 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:07:15,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:15,031 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:07:15,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:07:15,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1962742350, now seen corresponding path program 1 times [2020-07-20 14:07:15,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:07:15,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338738289] [2020-07-20 14:07:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:15,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:07:15,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:07:15,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 14:07:15,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:07:15,250 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-20 14:07:15,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:07:15,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338738289] [2020-07-20 14:07:15,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:07:15,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:07:15,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663870219] [2020-07-20 14:07:15,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:07:15,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:07:15,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:07:15,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:15,253 INFO L87 Difference]: Start difference. First operand 2836 states and 3063 transitions. Second operand 3 states. [2020-07-20 14:07:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:07:15,693 INFO L93 Difference]: Finished difference Result 3420 states and 3666 transitions. [2020-07-20 14:07:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:07:15,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-20 14:07:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:07:15,694 INFO L225 Difference]: With dead ends: 3420 [2020-07-20 14:07:15,694 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:07:15,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:07:15,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:07:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:07:15,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:07:15,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:07:15,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2020-07-20 14:07:15,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:07:15,701 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:07:15,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:07:15,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:07:15,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:07:15,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:07:15,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:07:17,634 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2020-07-20 14:07:18,121 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-07-20 14:07:18,599 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2020-07-20 14:07:18,603 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:07:18,603 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a11~0 |old(~a11~0)|) (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 14:07:18,603 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:07:18,603 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,603 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:07:18,604 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:07:18,605 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:07:18,605 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:07:18,605 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:07:18,605 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:07:18,605 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,606 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:07:18,607 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,608 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:07:18,609 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,610 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:07:18,611 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,612 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:07:18,613 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:07:18,614 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,615 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,616 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:07:18,617 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,618 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:07:18,619 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,620 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:07:18,621 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,622 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,623 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse23 (= 1 |old(~a11~0)|))) (let ((.cse17 (not .cse23)) (.cse3 (not (<= |old(~a17~0)| 7))) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a25~0 |old(~a25~0)|)) (.cse21 (<= ~a28~0 10)) (.cse4 (<= ~a11~0 |old(~a11~0)|)) (.cse10 (= 1 ~a11~0)) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse1 (not (<= 9 |old(~a28~0)|))) (.cse8 (<= 9 ~a28~0)) (.cse20 (not (<= |old(~a11~0)| 0))) (.cse19 (not (<= 10 |old(~a28~0)|))) (.cse22 (<= 10 ~a28~0)) (.cse18 (not (= 1 |old(~a19~0)|))) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse11 (<= ~a17~0 8)) (.cse12 (<= 8 ~a17~0)) (.cse7 (= ~a19~0 |old(~a19~0)|)) (.cse9 (= 1 ~a25~0)) (.cse14 (not (<= |old(~a28~0)| 7))) (.cse15 (not (<= 8 |old(~a17~0)|))) (.cse2 (not (= 1 |old(~a25~0)|))) (.cse16 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9)) (or (and .cse6 .cse10 .cse11 .cse12 .cse7 .cse13) .cse14 .cse15 .cse16 .cse17) (or .cse18 .cse0 .cse1 (and .cse6 .cse10 .cse11 .cse12 .cse7 .cse8 .cse13) .cse15 .cse16 .cse17) (or .cse18 .cse0 .cse12 .cse15 .cse19 .cse16) (or .cse0 .cse2 .cse3 (and .cse5 .cse10 .cse6 .cse7 .cse9) .cse17) (or .cse0 .cse15 (and .cse4 .cse6 .cse11 .cse12 .cse7 .cse13) .cse16 .cse20) (or .cse0 .cse3 .cse19 (and .cse5 .cse21 .cse22 .cse7 .cse13) .cse16) (or .cse18 .cse0 (and .cse11 .cse21 .cse22 .cse7) .cse19 .cse16) (or .cse0 .cse2 .cse19 .cse22 .cse16 .cse20) (or .cse18 .cse1 .cse23 .cse15 .cse2 (and .cse4 .cse6 .cse11 .cse12 (not .cse10) .cse7 .cse8 .cse9) .cse16) (or .cse0 .cse1 .cse15 .cse16 .cse8 .cse20) (or .cse18 .cse23 .cse15 .cse2 .cse19 .cse22 .cse16) (or .cse18 (and .cse6 .cse11 .cse12 .cse7 .cse9) .cse14 .cse15 .cse2 .cse16)))) [2020-07-20 14:07:18,623 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,623 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,623 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,623 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:07:18,623 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:07:18,624 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,625 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:07:18,626 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,627 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:07:18,628 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:07:18,629 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:07:18,630 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 14:07:18,630 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:07:18,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:07:18,631 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (and (<= ~a11~0 |old(~a11~0)|) (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 14:07:18,631 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse8 (<= 10 ~a28~0)) (.cse0 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 7)) (.cse1 (= 1 ~a19~0)) (.cse2 (<= ~a17~0 8)) (.cse3 (<= 8 ~a17~0)) (.cse10 (<= 9 ~a28~0)) (.cse9 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 10)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse7 (<= ~a17~0 7)) (.cse11 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse9 .cse2 .cse3 .cse6 .cse5 .cse10) (and .cse1 .cse2 .cse6 .cse8) (and .cse9 .cse2 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse6 .cse5 .cse7 .cse10 .cse11) (and .cse1 .cse2 .cse3 .cse5 .cse4 .cse11) (and .cse1 .cse2 .cse3 .cse5 (not .cse9) .cse10 .cse11) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse6 .cse5 .cse7 .cse11))) [2020-07-20 14:07:18,631 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:07:18,631 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:07:18,632 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse8 (<= 10 ~a28~0)) (.cse0 (<= ~a11~0 |old(~a11~0)|)) (.cse4 (<= ~a28~0 7)) (.cse1 (= 1 ~a19~0)) (.cse2 (<= ~a17~0 8)) (.cse3 (<= 8 ~a17~0)) (.cse10 (<= 9 ~a28~0)) (.cse9 (= 1 ~a11~0)) (.cse6 (<= ~a28~0 10)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse7 (<= ~a17~0 7)) (.cse11 (= 1 ~a25~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse5 .cse6 .cse7 .cse8) (not (<= 8 |old(~a17~0)|)) (and .cse1 .cse9 .cse2 .cse3 .cse6 .cse5 .cse10) (and .cse1 .cse2 .cse6 .cse8) (and .cse9 .cse2 .cse3 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse5) (not (<= |old(~a11~0)| 0)) (and .cse6 .cse5 .cse7 .cse10 .cse11) (and .cse1 .cse2 .cse3 .cse5 .cse4 .cse11) (and .cse1 .cse2 .cse3 .cse5 (not .cse9) .cse10 .cse11) (not (<= |old(~a17~0)| 8)) (and .cse9 .cse6 .cse5 .cse7 .cse11))) [2020-07-20 14:07:18,632 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:07:18,632 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:07:18,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:07:18 BoogieIcfgContainer [2020-07-20 14:07:18,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:07:18,658 INFO L168 Benchmark]: Toolchain (without parser) took 19818.76 ms. Allocated memory was 144.7 MB in the beginning and 475.0 MB in the end (delta: 330.3 MB). Free memory was 99.6 MB in the beginning and 171.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 352.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,659 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.80 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.2 MB in the beginning and 171.4 MB in the end (delta: -72.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,660 INFO L168 Benchmark]: Boogie Preprocessor took 126.41 ms. Allocated memory is still 204.5 MB. Free memory was 171.4 MB in the beginning and 166.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,661 INFO L168 Benchmark]: RCFGBuilder took 1287.05 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 182.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,662 INFO L168 Benchmark]: TraceAbstraction took 17636.07 ms. Allocated memory was 236.5 MB in the beginning and 475.0 MB in the end (delta: 238.6 MB). Free memory was 182.3 MB in the beginning and 171.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 342.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:07:18,665 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 762.80 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.2 MB in the beginning and 171.4 MB in the end (delta: -72.2 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.41 ms. Allocated memory is still 204.5 MB. Free memory was 171.4 MB in the beginning and 166.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1287.05 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.5 MB in the beginning and 182.3 MB in the end (delta: -15.8 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17636.07 ms. Allocated memory was 236.5 MB in the beginning and 475.0 MB in the end (delta: 238.6 MB). Free memory was 182.3 MB in the beginning and 171.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 342.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((((!(1 == \old(a19)) || (((((a11 <= \old(a11) && 1 == a19) && a17 <= 8) && 8 <= a17) && a28 <= 7) && a25 == \old(a25))) || !(\old(a28) <= 7)) || (((!(1 == \old(a25)) && a28 <= 10) && a17 <= 7) && 10 <= a28)) || !(8 <= \old(a17))) || ((((((1 == a19 && 1 == a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25))) && 9 <= a28)) || (((1 == a19 && a17 <= 8) && a28 <= 10) && 10 <= a28)) || ((((1 == a11 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7)) || ((((a11 <= \old(a11) && a17 <= 8) && 8 <= a17) && a28 <= 10) && !(1 == \old(a25)))) || !(\old(a11) <= 0)) || ((((a28 <= 10 && !(1 == \old(a25))) && a17 <= 7) && 9 <= a28) && 1 == a25)) || (((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && a28 <= 7) && 1 == a25)) || ((((((1 == a19 && a17 <= 8) && 8 <= a17) && !(1 == \old(a25))) && !(1 == a11)) && 9 <= a28) && 1 == a25)) || !(\old(a17) <= 8)) || ((((1 == a11 && a28 <= 10) && !(1 == \old(a25))) && a17 <= 7) && 1 == a25) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.8s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 982 SDtfs, 3877 SDslu, 473 SDs, 0 SdLazy, 6250 SolverSat, 862 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2391 GetRequests, 2341 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3153occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 787 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 113 PreInvPairs, 157 NumberOfFragments, 915 HoareAnnotationTreeSize, 113 FomulaSimplifications, 3529 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1644 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1922 NumberOfCodeBlocks, 1922 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2364 ConstructedInterpolants, 0 QuantifiedInterpolants, 712653 SizeOfPredicates, 13 NumberOfNonLiveVariables, 5032 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 1360/1372 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...