/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_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:06:17,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:06:17,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:06:17,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:06:17,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:06:17,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:06:17,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:06:17,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:06:17,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:06:17,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:06:17,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:06:17,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:06:17,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:06:17,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:06:17,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:06:17,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:06:17,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:06:17,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:06:17,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:06:17,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:06:17,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:06:17,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:06:17,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:06:17,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:06:17,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 14:06:17,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 14:06:17,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 14:06:17,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 14:06:17,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 14:06:17,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 14:06:17,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 14:06:17,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 14:06:17,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 14:06:17,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 14:06:17,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 14:06:17,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 14:06:17,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 14:06:17,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 14:06:17,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:06:17,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:06:17,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:06:17,496 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 14:06:17,514 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:06:17,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:06:17,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:06:17,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:06:17,517 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:06:17,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:06:17,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:06:17,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:06:17,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:06:17,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:06:17,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:06:17,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:06:17,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:06:17,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:06:17,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:06:17,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:06:17,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:06:17,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:06:17,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:06:17,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:06:17,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:06:17,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:06:17,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:06:17,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:06:17,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:06:17,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:06:17,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:17,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:06:17,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:06:17,524 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 14:06:17,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:06:17,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:06:17,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:06:17,892 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:06:17,893 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:06:17,894 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-20 14:06:17,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449220360/527d95d8983547828a4d4de89fce01a8/FLAGf2e4caaf5 [2020-07-20 14:06:18,608 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:06:18,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label03.c [2020-07-20 14:06:18,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449220360/527d95d8983547828a4d4de89fce01a8/FLAGf2e4caaf5 [2020-07-20 14:06:18,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/449220360/527d95d8983547828a4d4de89fce01a8 [2020-07-20 14:06:18,835 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:06:18,839 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:06:18,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:18,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:06:18,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:06:18,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:18" (1/1) ... [2020-07-20 14:06:18,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9bb858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:18, skipping insertion in model container [2020-07-20 14:06:18,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:06:18" (1/1) ... [2020-07-20 14:06:18,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:06:18,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:06:19,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:19,493 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:06:19,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:06:19,823 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:06:19,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19 WrapperNode [2020-07-20 14:06:19,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:06:19,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:06:19,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:06:19,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:06:19,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (1/1) ... [2020-07-20 14:06:19,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:06:19,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:06:19,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:06:19,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:06:19,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (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 14:06:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:06:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:06:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:06:20,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:06:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:06:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:06:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:06:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:06:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:06:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:06:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:06:21,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:06:21,386 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:06:21,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:06:21 BoogieIcfgContainer [2020-07-20 14:06:21,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:06:21,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:06:21,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:06:21,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:06:21,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:06:18" (1/3) ... [2020-07-20 14:06:21,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165da1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:06:21, skipping insertion in model container [2020-07-20 14:06:21,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:06:19" (2/3) ... [2020-07-20 14:06:21,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4165da1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:06:21, skipping insertion in model container [2020-07-20 14:06:21,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:06:21" (3/3) ... [2020-07-20 14:06:21,403 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label03.c [2020-07-20 14:06:21,415 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:06:21,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:06:21,440 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:06:21,466 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:06:21,466 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:06:21,467 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:06:21,467 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:06:21,467 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:06:21,467 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:06:21,467 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:06:21,467 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:06:21,490 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 14:06:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-20 14:06:21,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:21,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:21,509 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:21,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1255491721, now seen corresponding path program 1 times [2020-07-20 14:06:21,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:21,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947539172] [2020-07-20 14:06:21,528 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 14:06:21,792 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:21,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:21,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:06:21,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:21,928 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 14:06:21,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:21,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947539172] [2020-07-20 14:06:21,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:21,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:21,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442010060] [2020-07-20 14:06:21,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:21,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:21,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:21,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:21,963 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 14:06:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:23,115 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-20 14:06:23,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:23,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-20 14:06:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:23,154 INFO L225 Difference]: With dead ends: 615 [2020-07-20 14:06:23,155 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 14:06:23,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 14:06:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-20 14:06:23,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-20 14:06:23,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-20 14:06:23,310 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 135 [2020-07-20 14:06:23,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:23,315 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-20 14:06:23,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-20 14:06:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 14:06:23,328 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:23,329 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:23,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:23,530 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:23,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1675646532, now seen corresponding path program 1 times [2020-07-20 14:06:23,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:23,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026014655] [2020-07-20 14:06:23,533 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 14:06:23,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:23,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:23,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:06:23,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:23,769 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 14:06:23,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:23,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026014655] [2020-07-20 14:06:23,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:23,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:06:23,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078409233] [2020-07-20 14:06:23,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:06:23,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:23,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:06:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:06:23,773 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 5 states. [2020-07-20 14:06:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:24,314 INFO L93 Difference]: Finished difference Result 629 states and 962 transitions. [2020-07-20 14:06:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 14:06:24,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-07-20 14:06:24,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:24,320 INFO L225 Difference]: With dead ends: 629 [2020-07-20 14:06:24,321 INFO L226 Difference]: Without dead ends: 318 [2020-07-20 14:06:24,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 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 14:06:24,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-07-20 14:06:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 308. [2020-07-20 14:06:24,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2020-07-20 14:06:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 435 transitions. [2020-07-20 14:06:24,352 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 435 transitions. Word has length 150 [2020-07-20 14:06:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:24,352 INFO L479 AbstractCegarLoop]: Abstraction has 308 states and 435 transitions. [2020-07-20 14:06:24,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:06:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 435 transitions. [2020-07-20 14:06:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 14:06:24,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:24,356 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:24,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:24,570 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:24,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:24,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1904340367, now seen corresponding path program 1 times [2020-07-20 14:06:24,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:24,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267865832] [2020-07-20 14:06:24,573 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 14:06:24,682 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:24,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:24,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:06:24,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:24,765 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 14:06:24,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:24,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267865832] [2020-07-20 14:06:24,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:24,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:06:24,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911802526] [2020-07-20 14:06:24,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:06:24,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:24,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:06:24,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:06:24,781 INFO L87 Difference]: Start difference. First operand 308 states and 435 transitions. Second operand 5 states. [2020-07-20 14:06:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:25,747 INFO L93 Difference]: Finished difference Result 923 states and 1328 transitions. [2020-07-20 14:06:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:06:25,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2020-07-20 14:06:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:25,753 INFO L225 Difference]: With dead ends: 923 [2020-07-20 14:06:25,753 INFO L226 Difference]: Without dead ends: 621 [2020-07-20 14:06:25,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 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 14:06:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-07-20 14:06:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 459. [2020-07-20 14:06:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-20 14:06:25,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 601 transitions. [2020-07-20 14:06:25,790 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 601 transitions. Word has length 157 [2020-07-20 14:06:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:25,790 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 601 transitions. [2020-07-20 14:06:25,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:06:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 601 transitions. [2020-07-20 14:06:25,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-07-20 14:06:25,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:25,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:26,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:26,007 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:26,008 INFO L82 PathProgramCache]: Analyzing trace with hash -615487712, now seen corresponding path program 1 times [2020-07-20 14:06:26,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:26,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677004991] [2020-07-20 14:06:26,010 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 14:06:26,135 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:26,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:26,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:26,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:26,224 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 14:06:26,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:06:26,335 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 14:06:26,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677004991] [2020-07-20 14:06:26,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:06:26,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:06:26,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268204978] [2020-07-20 14:06:26,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:06:26,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:26,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:06:26,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:06:26,339 INFO L87 Difference]: Start difference. First operand 459 states and 601 transitions. Second operand 6 states. [2020-07-20 14:06:27,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:27,254 INFO L93 Difference]: Finished difference Result 1075 states and 1439 transitions. [2020-07-20 14:06:27,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:06:27,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-07-20 14:06:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:27,259 INFO L225 Difference]: With dead ends: 1075 [2020-07-20 14:06:27,259 INFO L226 Difference]: Without dead ends: 622 [2020-07-20 14:06:27,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 326 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 14:06:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2020-07-20 14:06:27,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 612. [2020-07-20 14:06:27,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-07-20 14:06:27,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 802 transitions. [2020-07-20 14:06:27,288 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 802 transitions. Word has length 166 [2020-07-20 14:06:27,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:27,289 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 802 transitions. [2020-07-20 14:06:27,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:06:27,289 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 802 transitions. [2020-07-20 14:06:27,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 14:06:27,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:27,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:27,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:27,506 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:27,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:27,507 INFO L82 PathProgramCache]: Analyzing trace with hash 931972008, now seen corresponding path program 1 times [2020-07-20 14:06:27,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:27,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054606259] [2020-07-20 14:06:27,509 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 14:06:27,638 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:27,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:27,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:27,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:27,689 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 14:06:27,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:27,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054606259] [2020-07-20 14:06:27,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:27,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:27,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60332352] [2020-07-20 14:06:27,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:27,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:27,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:27,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:27,693 INFO L87 Difference]: Start difference. First operand 612 states and 802 transitions. Second operand 3 states. [2020-07-20 14:06:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:28,330 INFO L93 Difference]: Finished difference Result 1510 states and 2025 transitions. [2020-07-20 14:06:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:28,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-07-20 14:06:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:28,340 INFO L225 Difference]: With dead ends: 1510 [2020-07-20 14:06:28,341 INFO L226 Difference]: Without dead ends: 904 [2020-07-20 14:06:28,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:28,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-07-20 14:06:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 758. [2020-07-20 14:06:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2020-07-20 14:06:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 937 transitions. [2020-07-20 14:06:28,396 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 937 transitions. Word has length 170 [2020-07-20 14:06:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:28,401 INFO L479 AbstractCegarLoop]: Abstraction has 758 states and 937 transitions. [2020-07-20 14:06:28,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 937 transitions. [2020-07-20 14:06:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-20 14:06:28,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:28,421 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:28,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:28,639 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:28,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:28,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1346881862, now seen corresponding path program 1 times [2020-07-20 14:06:28,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:28,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740170219] [2020-07-20 14:06:28,641 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 14:06:28,753 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:28,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:28,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:28,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:28,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:06:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:06:28,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740170219] [2020-07-20 14:06:28,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:06:28,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:06:28,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468967811] [2020-07-20 14:06:28,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:06:28,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:28,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:06:28,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:06:28,932 INFO L87 Difference]: Start difference. First operand 758 states and 937 transitions. Second operand 7 states. [2020-07-20 14:06:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:29,893 INFO L93 Difference]: Finished difference Result 1682 states and 2124 transitions. [2020-07-20 14:06:29,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:06:29,896 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 186 [2020-07-20 14:06:29,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:29,902 INFO L225 Difference]: With dead ends: 1682 [2020-07-20 14:06:29,903 INFO L226 Difference]: Without dead ends: 930 [2020-07-20 14:06:29,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 366 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:06:29,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-07-20 14:06:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 918. [2020-07-20 14:06:29,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2020-07-20 14:06:29,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1133 transitions. [2020-07-20 14:06:29,967 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1133 transitions. Word has length 186 [2020-07-20 14:06:29,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:29,968 INFO L479 AbstractCegarLoop]: Abstraction has 918 states and 1133 transitions. [2020-07-20 14:06:29,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:06:29,968 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1133 transitions. [2020-07-20 14:06:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-20 14:06:29,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:29,979 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:30,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:30,194 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:30,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:30,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1189448715, now seen corresponding path program 1 times [2020-07-20 14:06:30,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:30,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050882389] [2020-07-20 14:06:30,196 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 14:06:30,345 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:30,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:30,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 14:06:30,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-07-20 14:06:30,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:30,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050882389] [2020-07-20 14:06:30,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:30,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:06:30,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699627578] [2020-07-20 14:06:30,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:06:30,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:30,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:06:30,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:06:30,444 INFO L87 Difference]: Start difference. First operand 918 states and 1133 transitions. Second operand 5 states. [2020-07-20 14:06:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:31,221 INFO L93 Difference]: Finished difference Result 2457 states and 3125 transitions. [2020-07-20 14:06:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 14:06:31,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-07-20 14:06:31,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:31,230 INFO L225 Difference]: With dead ends: 2457 [2020-07-20 14:06:31,231 INFO L226 Difference]: Without dead ends: 1383 [2020-07-20 14:06:31,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 190 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 14:06:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-07-20 14:06:31,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1367. [2020-07-20 14:06:31,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1367 states. [2020-07-20 14:06:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1576 transitions. [2020-07-20 14:06:31,296 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1576 transitions. Word has length 194 [2020-07-20 14:06:31,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:31,297 INFO L479 AbstractCegarLoop]: Abstraction has 1367 states and 1576 transitions. [2020-07-20 14:06:31,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:06:31,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1576 transitions. [2020-07-20 14:06:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 14:06:31,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:06:31,304 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:06:31,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:31,517 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:06:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:06:31,518 INFO L82 PathProgramCache]: Analyzing trace with hash 259892337, now seen corresponding path program 1 times [2020-07-20 14:06:31,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:06:31,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158901883] [2020-07-20 14:06:31,519 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 14:06:31,651 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:06:31,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:06:31,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:06:31,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:06:31,763 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 14:06:31,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:06:31,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158901883] [2020-07-20 14:06:31,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:06:31,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:06:31,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798195428] [2020-07-20 14:06:31,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:06:31,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:06:31,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:06:31,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:06:31,766 INFO L87 Difference]: Start difference. First operand 1367 states and 1576 transitions. Second operand 3 states. [2020-07-20 14:06:32,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:06:32,241 INFO L93 Difference]: Finished difference Result 2726 states and 3145 transitions. [2020-07-20 14:06:32,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:06:32,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-07-20 14:06:32,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:06:32,244 INFO L225 Difference]: With dead ends: 2726 [2020-07-20 14:06:32,244 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:06:32,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 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 14:06:32,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:06:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:06:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:06:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:06:32,254 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2020-07-20 14:06:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:06:32,254 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:06:32,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:06:32,254 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:06:32,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:06:32,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:06:32,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:06:33,179 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-07-20 14:06:33,303 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-07-20 14:06:33,426 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33 [2020-07-20 14:06:33,430 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:06:33,431 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-20 14:06:33,431 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:06:33,431 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,431 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,431 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,431 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 14:06:33,432 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:06:33,433 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,434 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 14:06:33,435 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 14:06:33,436 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,437 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 559) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 14:06:33,438 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,439 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 14:06:33,440 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,441 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 14:06:33,442 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 14:06:33,443 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,444 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 14:06:33,445 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 14:06:33,446 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,447 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 14:06:33,448 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 14:06:33,449 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse11 (<= ~a28~0 |old(~a28~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 .cse11 .cse7)) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse8 (not (<= 8 |old(~a17~0)|))) (.cse10 (<= 8 ~a17~0)) (.cse3 (not (<= |old(~a28~0)| 10))) (.cse9 (not (<= |old(~a19~0)| 0))) (.cse4 (not (<= 10 |old(~a28~0)|))) (.cse6 (<= 10 ~a28~0)) (.cse2 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 (not (<= |old(~a28~0)| 7)) .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2 (and .cse5 (<= ~a28~0 10) .cse6 .cse7)) (or .cse0 .cse8 .cse4 .cse6 .cse2) (or .cse3 .cse9 .cse2 .cse1) (or .cse3 .cse10 .cse8 .cse9 .cse2) (or .cse0 .cse8 (and .cse11 (<= ~a17~0 8) .cse10 .cse7) .cse2) (or .cse3 .cse9 .cse4 .cse6 .cse2)))) [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,450 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 14:06:33,451 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,452 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 14:06:33,453 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 14:06:33,454 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 14:06:33,455 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 14:06:33,456 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:06:33,457 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a28~0 7)) [2020-07-20 14:06:33,457 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:06:33,457 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 (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-20 14:06:33,457 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0)) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse2 (<= 10 ~a28~0) .cse1) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse2 (<= ~a19~0 0)) (not (<= |old(~a17~0)| 8)))) [2020-07-20 14:06:33,457 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:06:33,458 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 14:06:33,458 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= ~a19~0 |old(~a19~0)|)) (.cse0 (<= ~a17~0 8)) (.cse2 (<= ~a28~0 10))) (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) .cse0 (<= 8 ~a17~0)) (and .cse0 .cse1 (<= ~a28~0 7)) (not (<= |old(~a28~0)| 7)) (and .cse0 .cse2 (<= 10 ~a28~0) .cse1) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse2 (<= ~a19~0 0)) (not (<= |old(~a17~0)| 8)))) [2020-07-20 14:06:33,458 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 14:06:33,458 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 14:06:33,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:06:33 BoogieIcfgContainer [2020-07-20 14:06:33,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:06:33,481 INFO L168 Benchmark]: Toolchain (without parser) took 14643.50 ms. Allocated memory was 135.8 MB in the beginning and 394.8 MB in the end (delta: 259.0 MB). Free memory was 99.3 MB in the beginning and 138.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 219.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,481 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 135.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.36 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 169.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,483 INFO L168 Benchmark]: Boogie Preprocessor took 129.33 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,484 INFO L168 Benchmark]: RCFGBuilder took 1439.09 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 164.7 MB in the beginning and 179.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,485 INFO L168 Benchmark]: TraceAbstraction took 12083.52 ms. Allocated memory was 230.7 MB in the beginning and 394.8 MB in the end (delta: 164.1 MB). Free memory was 179.5 MB in the beginning and 138.8 MB in the end (delta: 40.7 MB). Peak memory consumption was 204.8 MB. Max. memory is 7.1 GB. [2020-07-20 14:06:33,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 135.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 984.36 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 98.9 MB in the beginning and 169.1 MB in the end (delta: -70.2 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.33 ms. Allocated memory is still 202.4 MB. Free memory was 169.1 MB in the beginning and 164.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1439.09 ms. Allocated memory was 202.4 MB in the beginning and 230.7 MB in the end (delta: 28.3 MB). Free memory was 164.7 MB in the beginning and 179.5 MB in the end (delta: -14.8 MB). Peak memory consumption was 88.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12083.52 ms. Allocated memory was 230.7 MB in the beginning and 394.8 MB in the end (delta: 164.1 MB). Free memory was 179.5 MB in the beginning and 138.8 MB in the end (delta: 40.7 MB). Peak memory consumption was 204.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 559]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || ((a17 <= 8 && a19 == \old(a19)) && a28 <= 7)) || !(\old(a28) <= 7)) || (((a17 <= 8 && a28 <= 10) && 10 <= a28) && a19 == \old(a19))) || !(8 <= \old(a17))) || ((a17 <= 8 && a28 <= 10) && a19 <= 0)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.9s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 673 SDtfs, 2480 SDslu, 315 SDs, 0 SdLazy, 3868 SolverSat, 762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1755 GetRequests, 1721 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1367occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 356 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 49 PreInvPairs, 71 NumberOfFragments, 337 HoareAnnotationTreeSize, 49 FomulaSimplifications, 2550 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 796 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1399 NumberOfCodeBlocks, 1399 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1741 ConstructedInterpolants, 0 QuantifiedInterpolants, 549685 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3297 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 474/482 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...