/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_VARIABLES --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/loop-industry-pattern/ofuf_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 18:13:15,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 18:13:15,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 18:13:15,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 18:13:15,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 18:13:15,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 18:13:15,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 18:13:15,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 18:13:15,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 18:13:15,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 18:13:15,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 18:13:15,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 18:13:15,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 18:13:15,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 18:13:15,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 18:13:15,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 18:13:15,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 18:13:15,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 18:13:15,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 18:13:15,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 18:13:15,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 18:13:15,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 18:13:15,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 18:13:15,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 18:13:15,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 18:13:15,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 18:13:15,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 18:13:15,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 18:13:15,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 18:13:15,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 18:13:15,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 18:13:15,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 18:13:15,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 18:13:15,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 18:13:15,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 18:13:15,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 18:13:15,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 18:13:15,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 18:13:15,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 18:13:15,468 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 18:13:15,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 18:13:15,470 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 18:13:15,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 18:13:15,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 18:13:15,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 18:13:15,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 18:13:15,497 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 18:13:15,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 18:13:15,498 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 18:13:15,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 18:13:15,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 18:13:15,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 18:13:15,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 18:13:15,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 18:13:15,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 18:13:15,500 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 18:13:15,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 18:13:15,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 18:13:15,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 18:13:15,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 18:13:15,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 18:13:15,502 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 18:13:15,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 18:13:15,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 18:13:15,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 18:13:15,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 18:13:15,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 18:13:15,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 18:13:15,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:15,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 18:13:15,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 18:13:15,504 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_VARIABLES 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 18:13:15,876 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 18:13:15,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 18:13:15,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 18:13:15,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 18:13:15,909 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 18:13:15,910 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2020-07-20 18:13:15,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6989b77f1/ccd1b245593d48faa12195ef59df584d/FLAG61b59caf5 [2020-07-20 18:13:16,618 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 18:13:16,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_5.c [2020-07-20 18:13:16,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6989b77f1/ccd1b245593d48faa12195ef59df584d/FLAG61b59caf5 [2020-07-20 18:13:16,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6989b77f1/ccd1b245593d48faa12195ef59df584d [2020-07-20 18:13:16,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 18:13:16,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 18:13:16,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 18:13:16,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 18:13:16,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 18:13:16,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:13:16" (1/1) ... [2020-07-20 18:13:16,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44193db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:16, skipping insertion in model container [2020-07-20 18:13:16,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 06:13:16" (1/1) ... [2020-07-20 18:13:16,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 18:13:16,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 18:13:17,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:13:17,407 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 18:13:17,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 18:13:17,516 INFO L208 MainTranslator]: Completed translation [2020-07-20 18:13:17,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17 WrapperNode [2020-07-20 18:13:17,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 18:13:17,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 18:13:17,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 18:13:17,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 18:13:17,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (1/1) ... [2020-07-20 18:13:17,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 18:13:17,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 18:13:17,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 18:13:17,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 18:13:17,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (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 18:13:17,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 18:13:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 18:13:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 18:13:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-07-20 18:13:17,721 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-07-20 18:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-07-20 18:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-07-20 18:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-07-20 18:13:17,722 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-07-20 18:13:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-07-20 18:13:17,723 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-07-20 18:13:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 18:13:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 18:13:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 18:13:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 18:13:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 18:13:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-07-20 18:13:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-07-20 18:13:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-07-20 18:13:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-07-20 18:13:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-07-20 18:13:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-07-20 18:13:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-07-20 18:13:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 18:13:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-07-20 18:13:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-07-20 18:13:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-20 18:13:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 18:13:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 18:13:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 18:13:20,918 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 18:13:20,919 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-20 18:13:20,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:13:20 BoogieIcfgContainer [2020-07-20 18:13:20,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 18:13:20,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 18:13:20,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 18:13:20,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 18:13:20,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 06:13:16" (1/3) ... [2020-07-20 18:13:20,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31be0015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:13:20, skipping insertion in model container [2020-07-20 18:13:20,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 06:13:17" (2/3) ... [2020-07-20 18:13:20,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31be0015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 06:13:20, skipping insertion in model container [2020-07-20 18:13:20,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 06:13:20" (3/3) ... [2020-07-20 18:13:20,940 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_5.c [2020-07-20 18:13:20,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 18:13:20,958 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 18:13:20,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 18:13:20,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 18:13:20,991 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 18:13:20,991 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 18:13:20,991 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 18:13:20,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 18:13:20,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 18:13:20,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 18:13:20,992 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 18:13:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-07-20 18:13:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-20 18:13:21,023 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:21,024 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] [2020-07-20 18:13:21,024 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:21,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1328586124, now seen corresponding path program 1 times [2020-07-20 18:13:21,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:21,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881761276] [2020-07-20 18:13:21,041 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 18:13:21,372 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 18:13:21,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:21,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 18:13:21,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:21,453 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 18:13:21,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:21,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881761276] [2020-07-20 18:13:21,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:21,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 18:13:21,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788833138] [2020-07-20 18:13:21,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 18:13:21,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 18:13:21,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 18:13:21,485 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2020-07-20 18:13:21,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:21,624 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2020-07-20 18:13:21,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 18:13:21,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-20 18:13:21,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:21,642 INFO L225 Difference]: With dead ends: 258 [2020-07-20 18:13:21,643 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 18:13:21,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:13:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 18:13:21,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 18:13:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 18:13:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 183 transitions. [2020-07-20 18:13:21,757 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 183 transitions. Word has length 43 [2020-07-20 18:13:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:21,758 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 183 transitions. [2020-07-20 18:13:21,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 18:13:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 183 transitions. [2020-07-20 18:13:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 18:13:21,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:21,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-20 18:13:21,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:21,979 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:21,980 INFO L82 PathProgramCache]: Analyzing trace with hash -671776074, now seen corresponding path program 1 times [2020-07-20 18:13:21,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:21,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026028664] [2020-07-20 18:13:21,981 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 18:13:22,227 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:13:22,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:22,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:13:22,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 18:13:22,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:22,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026028664] [2020-07-20 18:13:22,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:22,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:13:22,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101296513] [2020-07-20 18:13:22,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:13:22,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:22,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:13:22,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:13:22,268 INFO L87 Difference]: Start difference. First operand 132 states and 183 transitions. Second operand 3 states. [2020-07-20 18:13:22,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:22,328 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2020-07-20 18:13:22,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:13:22,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 18:13:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:22,336 INFO L225 Difference]: With dead ends: 270 [2020-07-20 18:13:22,337 INFO L226 Difference]: Without dead ends: 153 [2020-07-20 18:13:22,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 18:13:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-20 18:13:22,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 133. [2020-07-20 18:13:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 18:13:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 184 transitions. [2020-07-20 18:13:22,366 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 184 transitions. Word has length 51 [2020-07-20 18:13:22,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:22,367 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 184 transitions. [2020-07-20 18:13:22,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:13:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 184 transitions. [2020-07-20 18:13:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 18:13:22,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:22,372 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-07-20 18:13:22,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:22,587 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:22,588 INFO L82 PathProgramCache]: Analyzing trace with hash -713052232, now seen corresponding path program 1 times [2020-07-20 18:13:22,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:22,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996936099] [2020-07-20 18:13:22,590 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 18:13:22,870 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:13:22,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:22,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 18:13:22,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:22,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 18:13:22,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:13:23,009 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 18:13:23,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996936099] [2020-07-20 18:13:23,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:13:23,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-20 18:13:23,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854673645] [2020-07-20 18:13:23,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 18:13:23,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:23,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 18:13:23,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-20 18:13:23,013 INFO L87 Difference]: Start difference. First operand 133 states and 184 transitions. Second operand 6 states. [2020-07-20 18:13:23,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:23,217 INFO L93 Difference]: Finished difference Result 332 states and 484 transitions. [2020-07-20 18:13:23,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 18:13:23,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2020-07-20 18:13:23,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:23,222 INFO L225 Difference]: With dead ends: 332 [2020-07-20 18:13:23,222 INFO L226 Difference]: Without dead ends: 215 [2020-07-20 18:13:23,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-07-20 18:13:23,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-07-20 18:13:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 139. [2020-07-20 18:13:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 18:13:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2020-07-20 18:13:23,244 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 53 [2020-07-20 18:13:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:23,245 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2020-07-20 18:13:23,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 18:13:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2020-07-20 18:13:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-20 18:13:23,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:23,248 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-07-20 18:13:23,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:23,467 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:23,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:23,468 INFO L82 PathProgramCache]: Analyzing trace with hash -375236310, now seen corresponding path program 2 times [2020-07-20 18:13:23,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:23,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906016178] [2020-07-20 18:13:23,470 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 18:13:23,937 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 18:13:23,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:23,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 18:13:23,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 18:13:23,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 18:13:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-20 18:13:24,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906016178] [2020-07-20 18:13:24,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 18:13:24,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-07-20 18:13:24,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214130038] [2020-07-20 18:13:24,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 18:13:24,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:24,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 18:13:24,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-20 18:13:24,074 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand 10 states. [2020-07-20 18:13:24,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:24,535 INFO L93 Difference]: Finished difference Result 246 states and 335 transitions. [2020-07-20 18:13:24,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 18:13:24,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-07-20 18:13:24,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:24,538 INFO L225 Difference]: With dead ends: 246 [2020-07-20 18:13:24,538 INFO L226 Difference]: Without dead ends: 208 [2020-07-20 18:13:24,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2020-07-20 18:13:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-07-20 18:13:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 184. [2020-07-20 18:13:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-20 18:13:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 250 transitions. [2020-07-20 18:13:24,560 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 250 transitions. Word has length 55 [2020-07-20 18:13:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:24,560 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 250 transitions. [2020-07-20 18:13:24,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 18:13:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 250 transitions. [2020-07-20 18:13:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 18:13:24,562 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:24,563 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-07-20 18:13:24,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:24,764 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:24,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:24,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1278960574, now seen corresponding path program 3 times [2020-07-20 18:13:24,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:24,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351906927] [2020-07-20 18:13:24,765 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 18:13:25,136 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 18:13:25,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:25,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:13:25,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-20 18:13:25,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:25,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351906927] [2020-07-20 18:13:25,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:25,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:13:25,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874738187] [2020-07-20 18:13:25,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:13:25,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:25,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:13:25,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:13:25,171 INFO L87 Difference]: Start difference. First operand 184 states and 250 transitions. Second operand 3 states. [2020-07-20 18:13:25,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:25,197 INFO L93 Difference]: Finished difference Result 292 states and 392 transitions. [2020-07-20 18:13:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:13:25,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-07-20 18:13:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:25,201 INFO L225 Difference]: With dead ends: 292 [2020-07-20 18:13:25,202 INFO L226 Difference]: Without dead ends: 192 [2020-07-20 18:13:25,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 18:13:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-20 18:13:25,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 184. [2020-07-20 18:13:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-07-20 18:13:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 249 transitions. [2020-07-20 18:13:25,220 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 249 transitions. Word has length 59 [2020-07-20 18:13:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:25,220 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 249 transitions. [2020-07-20 18:13:25,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:13:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 249 transitions. [2020-07-20 18:13:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-20 18:13:25,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:25,223 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-07-20 18:13:25,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:25,439 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1612662619, now seen corresponding path program 1 times [2020-07-20 18:13:25,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:25,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72705827] [2020-07-20 18:13:25,442 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 18:13:26,278 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:13:26,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:26,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 18:13:26,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-20 18:13:26,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:26,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72705827] [2020-07-20 18:13:26,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:26,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 18:13:26,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90606265] [2020-07-20 18:13:26,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 18:13:26,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:26,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 18:13:26,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 18:13:26,310 INFO L87 Difference]: Start difference. First operand 184 states and 249 transitions. Second operand 3 states. [2020-07-20 18:13:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:26,356 INFO L93 Difference]: Finished difference Result 302 states and 408 transitions. [2020-07-20 18:13:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 18:13:26,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-20 18:13:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:26,363 INFO L225 Difference]: With dead ends: 302 [2020-07-20 18:13:26,363 INFO L226 Difference]: Without dead ends: 202 [2020-07-20 18:13:26,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 18:13:26,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-07-20 18:13:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 185. [2020-07-20 18:13:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-07-20 18:13:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 250 transitions. [2020-07-20 18:13:26,388 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 250 transitions. Word has length 60 [2020-07-20 18:13:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:26,389 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 250 transitions. [2020-07-20 18:13:26,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 18:13:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 250 transitions. [2020-07-20 18:13:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-20 18:13:26,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 18:13:26,395 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-07-20 18:13:26,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:26,610 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 18:13:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 18:13:26,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1182319835, now seen corresponding path program 1 times [2020-07-20 18:13:26,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 18:13:26,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7338795] [2020-07-20 18:13:26,612 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 18:13:27,481 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 18:13:27,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 18:13:27,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 18:13:27,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 18:13:27,539 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 18:13:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-20 18:13:27,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 18:13:27,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7338795] [2020-07-20 18:13:27,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 18:13:27,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 18:13:27,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909913772] [2020-07-20 18:13:27,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 18:13:27,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 18:13:27,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 18:13:27,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 18:13:27,561 INFO L87 Difference]: Start difference. First operand 185 states and 250 transitions. Second operand 5 states. [2020-07-20 18:13:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 18:13:27,655 INFO L93 Difference]: Finished difference Result 254 states and 341 transitions. [2020-07-20 18:13:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 18:13:27,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-07-20 18:13:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 18:13:27,657 INFO L225 Difference]: With dead ends: 254 [2020-07-20 18:13:27,657 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 18:13:27,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 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 18:13:27,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 18:13:27,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 18:13:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 18:13:27,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 18:13:27,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2020-07-20 18:13:27,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 18:13:27,660 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 18:13:27,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 18:13:27,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 18:13:27,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 18:13:27,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 18:13:27,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 18:13:28,330 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 30 [2020-07-20 18:13:28,498 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-07-20 18:13:28,654 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-07-20 18:13:28,818 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-07-20 18:13:28,832 INFO L268 CegarLoopResult]: For program point Id_MCDC_100FINAL(lines 418 424) no Hoare annotation was computed. [2020-07-20 18:13:28,833 INFO L268 CegarLoopResult]: For program point Id_MCDC_100EXIT(lines 418 424) no Hoare annotation was computed. [2020-07-20 18:13:28,833 INFO L271 CegarLoopResult]: At program point Id_MCDC_100ENTRY(lines 418 424) the Hoare annotation is: true [2020-07-20 18:13:28,834 INFO L271 CegarLoopResult]: At program point L422(line 422) the Hoare annotation is: true [2020-07-20 18:13:28,834 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 18:13:28,834 INFO L271 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: true [2020-07-20 18:13:28,834 INFO L268 CegarLoopResult]: For program point L403-1(line 403) no Hoare annotation was computed. [2020-07-20 18:13:28,835 INFO L271 CegarLoopResult]: At program point Id_MCDC_99ENTRY(lines 398 417) the Hoare annotation is: true [2020-07-20 18:13:28,835 INFO L268 CegarLoopResult]: For program point Id_MCDC_99EXIT(lines 398 417) no Hoare annotation was computed. [2020-07-20 18:13:28,835 INFO L268 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-07-20 18:13:28,835 INFO L268 CegarLoopResult]: For program point L406-2(lines 406 413) no Hoare annotation was computed. [2020-07-20 18:13:28,835 INFO L268 CegarLoopResult]: For program point L404-2(lines 404 414) no Hoare annotation was computed. [2020-07-20 18:13:28,835 INFO L271 CegarLoopResult]: At program point L404-3(lines 404 414) the Hoare annotation is: true [2020-07-20 18:13:28,836 INFO L271 CegarLoopResult]: At program point L404-4(lines 404 414) the Hoare annotation is: true [2020-07-20 18:13:28,836 INFO L268 CegarLoopResult]: For program point Id_MCDC_99FINAL(lines 398 417) no Hoare annotation was computed. [2020-07-20 18:13:28,836 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-07-20 18:13:28,836 INFO L268 CegarLoopResult]: For program point L213(line 213) no Hoare annotation was computed. [2020-07-20 18:13:28,836 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-20 18:13:28,836 INFO L268 CegarLoopResult]: For program point L209-2(line 209) no Hoare annotation was computed. [2020-07-20 18:13:28,836 INFO L271 CegarLoopResult]: At program point Id_MCDC_89ENTRY(lines 191 246) the Hoare annotation is: true [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point Id_MCDC_89EXIT(lines 191 246) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L234(lines 234 239) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L234-1(lines 232 244) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L202(lines 202 205) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point Id_MCDC_89FINAL(lines 191 246) no Hoare annotation was computed. [2020-07-20 18:13:28,837 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-07-20 18:13:28,838 INFO L268 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-07-20 18:13:28,838 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-20 18:13:28,838 INFO L268 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-07-20 18:13:28,838 INFO L271 CegarLoopResult]: At program point L207(lines 207 223) the Hoare annotation is: true [2020-07-20 18:13:28,839 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-07-20 18:13:28,839 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-07-20 18:13:28,839 INFO L268 CegarLoopResult]: For program point L232-3(line 232) no Hoare annotation was computed. [2020-07-20 18:13:28,839 INFO L268 CegarLoopResult]: For program point L232-5(lines 232 244) no Hoare annotation was computed. [2020-07-20 18:13:28,839 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 231) no Hoare annotation was computed. [2020-07-20 18:13:28,840 INFO L271 CegarLoopResult]: At program point L224-3(lines 224 231) the Hoare annotation is: true [2020-07-20 18:13:28,840 INFO L268 CegarLoopResult]: For program point L224-4(lines 224 231) no Hoare annotation was computed. [2020-07-20 18:13:28,840 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-07-20 18:13:28,840 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-20 18:13:28,840 INFO L268 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-07-20 18:13:28,841 INFO L268 CegarLoopResult]: For program point L200(lines 200 206) no Hoare annotation was computed. [2020-07-20 18:13:28,841 INFO L268 CegarLoopResult]: For program point L200-2(lines 200 206) no Hoare annotation was computed. [2020-07-20 18:13:28,841 INFO L268 CegarLoopResult]: For program point L196(lines 196 199) no Hoare annotation was computed. [2020-07-20 18:13:28,841 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 425 456) the Hoare annotation is: true [2020-07-20 18:13:28,841 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 425 456) no Hoare annotation was computed. [2020-07-20 18:13:28,842 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 425 456) no Hoare annotation was computed. [2020-07-20 18:13:28,842 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-20 18:13:28,842 INFO L268 CegarLoopResult]: For program point L450(lines 450 453) no Hoare annotation was computed. [2020-07-20 18:13:28,842 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 18:13:28,842 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 18:13:28,843 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 18:13:28,843 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 18:13:28,843 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-20 18:13:28,843 INFO L268 CegarLoopResult]: For program point L374-2(lines 374 391) no Hoare annotation was computed. [2020-07-20 18:13:28,843 INFO L271 CegarLoopResult]: At program point L374-3(lines 374 391) the Hoare annotation is: true [2020-07-20 18:13:28,844 INFO L268 CegarLoopResult]: For program point L374-4(lines 374 391) no Hoare annotation was computed. [2020-07-20 18:13:28,844 INFO L271 CegarLoopResult]: At program point Id_MCDC_97ENTRY(lines 329 397) the Hoare annotation is: true [2020-07-20 18:13:28,844 INFO L268 CegarLoopResult]: For program point Id_MCDC_97EXIT(lines 329 397) no Hoare annotation was computed. [2020-07-20 18:13:28,844 INFO L268 CegarLoopResult]: For program point L387(lines 387 390) no Hoare annotation was computed. [2020-07-20 18:13:28,844 INFO L268 CegarLoopResult]: For program point L354(lines 354 395) no Hoare annotation was computed. [2020-07-20 18:13:28,845 INFO L268 CegarLoopResult]: For program point L350-2(lines 350 353) no Hoare annotation was computed. [2020-07-20 18:13:28,845 INFO L264 CegarLoopResult]: At program point L350-3(lines 350 353) the Hoare annotation is: (= 6144 Id_MCDC_97_~Id_MCDC_123~0) [2020-07-20 18:13:28,845 INFO L268 CegarLoopResult]: For program point L350-4(lines 330 397) no Hoare annotation was computed. [2020-07-20 18:13:28,845 INFO L271 CegarLoopResult]: At program point L363(line 363) the Hoare annotation is: true [2020-07-20 18:13:28,845 INFO L268 CegarLoopResult]: For program point L363-1(lines 363 366) no Hoare annotation was computed. [2020-07-20 18:13:28,845 INFO L268 CegarLoopResult]: For program point Id_MCDC_97FINAL(lines 329 397) no Hoare annotation was computed. [2020-07-20 18:13:28,845 INFO L271 CegarLoopResult]: At program point L359(line 359) the Hoare annotation is: true [2020-07-20 18:13:28,846 INFO L268 CegarLoopResult]: For program point L359-1(lines 359 362) no Hoare annotation was computed. [2020-07-20 18:13:28,846 INFO L271 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: true [2020-07-20 18:13:28,846 INFO L268 CegarLoopResult]: For program point L376-1(lines 376 379) no Hoare annotation was computed. [2020-07-20 18:13:28,846 INFO L268 CegarLoopResult]: For program point L356-2(lines 356 394) no Hoare annotation was computed. [2020-07-20 18:13:28,846 INFO L271 CegarLoopResult]: At program point L356-3(lines 356 394) the Hoare annotation is: true [2020-07-20 18:13:28,846 INFO L271 CegarLoopResult]: At program point L369(line 369) the Hoare annotation is: true [2020-07-20 18:13:28,847 INFO L268 CegarLoopResult]: For program point L369-1(lines 369 372) no Hoare annotation was computed. [2020-07-20 18:13:28,847 INFO L271 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-07-20 18:13:28,847 INFO L271 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 278 297) the Hoare annotation is: true [2020-07-20 18:13:28,847 INFO L268 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 278 297) no Hoare annotation was computed. [2020-07-20 18:13:28,847 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-07-20 18:13:28,848 INFO L264 CegarLoopResult]: At program point L294(line 294) the Hoare annotation is: (and (or (= 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296)) (not (= (mod Id_MCDC_95_~Id_MCDC_93 4294967296) 2))) (or (= 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296)) (not (= 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296)))) (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3)))) [2020-07-20 18:13:28,848 INFO L264 CegarLoopResult]: At program point L296-2(line 296) the Hoare annotation is: (and (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (and |Id_MCDC_95_#t~short23| (not (= 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296)))) (= 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296))) (or (= 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296)) (and |Id_MCDC_95_#t~short23| (not (= 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296))))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3)))) [2020-07-20 18:13:28,848 INFO L268 CegarLoopResult]: For program point L294-1(line 294) no Hoare annotation was computed. [2020-07-20 18:13:28,848 INFO L268 CegarLoopResult]: For program point L296-3(line 296) no Hoare annotation was computed. [2020-07-20 18:13:28,848 INFO L264 CegarLoopResult]: At program point L288(line 288) the Hoare annotation is: (and (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (not (= 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3))) (or (= 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296)) (not (= 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296))))) [2020-07-20 18:13:28,849 INFO L268 CegarLoopResult]: For program point L288-1(line 288) no Hoare annotation was computed. [2020-07-20 18:13:28,849 INFO L268 CegarLoopResult]: For program point L286(lines 286 293) no Hoare annotation was computed. [2020-07-20 18:13:28,849 INFO L268 CegarLoopResult]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2020-07-20 18:13:28,849 INFO L268 CegarLoopResult]: For program point L282(lines 282 285) no Hoare annotation was computed. [2020-07-20 18:13:28,850 INFO L264 CegarLoopResult]: At program point L295(line 295) the Hoare annotation is: (and (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) (or (= 3 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 3))) (or (= 2 (mod (+ |Id_MCDC_95_#in~Id_MCDC_93| 4294967295) 4294967296)) (not (= 2 (mod (+ Id_MCDC_95_~Id_MCDC_93 4294967295) 4294967296)))) (or (not (= 2 (mod Id_MCDC_95_~Id_MCDC_93 4294967296))) (= 2 (mod |Id_MCDC_95_#in~Id_MCDC_93| 4294967296)))) [2020-07-20 18:13:28,850 INFO L268 CegarLoopResult]: For program point L295-1(line 295) no Hoare annotation was computed. [2020-07-20 18:13:28,850 INFO L268 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 278 297) no Hoare annotation was computed. [2020-07-20 18:13:28,850 INFO L268 CegarLoopResult]: For program point L316(lines 316 321) no Hoare annotation was computed. [2020-07-20 18:13:28,850 INFO L268 CegarLoopResult]: For program point L316-1(lines 314 326) no Hoare annotation was computed. [2020-07-20 18:13:28,850 INFO L268 CegarLoopResult]: For program point L314(line 314) no Hoare annotation was computed. [2020-07-20 18:13:28,851 INFO L268 CegarLoopResult]: For program point L314-2(line 314) no Hoare annotation was computed. [2020-07-20 18:13:28,851 INFO L268 CegarLoopResult]: For program point L314-3(line 314) no Hoare annotation was computed. [2020-07-20 18:13:28,851 INFO L268 CegarLoopResult]: For program point L314-5(lines 314 326) no Hoare annotation was computed. [2020-07-20 18:13:28,851 INFO L268 CegarLoopResult]: For program point L306-1(lines 306 313) no Hoare annotation was computed. [2020-07-20 18:13:28,851 INFO L271 CegarLoopResult]: At program point L306-3(lines 306 313) the Hoare annotation is: true [2020-07-20 18:13:28,852 INFO L268 CegarLoopResult]: For program point L302(lines 302 305) no Hoare annotation was computed. [2020-07-20 18:13:28,852 INFO L268 CegarLoopResult]: For program point L306-4(lines 306 313) no Hoare annotation was computed. [2020-07-20 18:13:28,852 INFO L268 CegarLoopResult]: For program point Id_MCDC_96FINAL(lines 298 328) no Hoare annotation was computed. [2020-07-20 18:13:28,852 INFO L268 CegarLoopResult]: For program point L309(lines 309 312) no Hoare annotation was computed. [2020-07-20 18:13:28,852 INFO L271 CegarLoopResult]: At program point Id_MCDC_96ENTRY(lines 298 328) the Hoare annotation is: true [2020-07-20 18:13:28,852 INFO L268 CegarLoopResult]: For program point Id_MCDC_96EXIT(lines 298 328) no Hoare annotation was computed. [2020-07-20 18:13:28,853 INFO L268 CegarLoopResult]: For program point L253(lines 253 267) no Hoare annotation was computed. [2020-07-20 18:13:28,853 INFO L271 CegarLoopResult]: At program point Id_MCDC_92ENTRY(lines 247 277) the Hoare annotation is: true [2020-07-20 18:13:28,853 INFO L268 CegarLoopResult]: For program point Id_MCDC_92EXIT(lines 247 277) no Hoare annotation was computed. [2020-07-20 18:13:28,853 INFO L268 CegarLoopResult]: For program point Id_MCDC_92FINAL(lines 247 277) no Hoare annotation was computed. [2020-07-20 18:13:28,853 INFO L271 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: true [2020-07-20 18:13:28,853 INFO L268 CegarLoopResult]: For program point L270-1(line 270) no Hoare annotation was computed. [2020-07-20 18:13:28,854 INFO L268 CegarLoopResult]: For program point L268-1(lines 248 277) no Hoare annotation was computed. [2020-07-20 18:13:28,854 INFO L268 CegarLoopResult]: For program point L268-2(lines 268 275) no Hoare annotation was computed. [2020-07-20 18:13:28,854 INFO L268 CegarLoopResult]: For program point L259(lines 259 267) no Hoare annotation was computed. [2020-07-20 18:13:28,854 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 18:13:28,854 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 18:13:28,854 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 18:13:28,855 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 18:13:28,855 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 18:13:28,855 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 18:13:28,855 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 18:13:28,855 INFO L268 CegarLoopResult]: For program point avoid_zeroEXIT(lines 7 13) no Hoare annotation was computed. [2020-07-20 18:13:28,856 INFO L268 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-07-20 18:13:28,856 INFO L268 CegarLoopResult]: For program point L9-2(lines 7 13) no Hoare annotation was computed. [2020-07-20 18:13:28,856 INFO L271 CegarLoopResult]: At program point avoid_zeroENTRY(lines 7 13) the Hoare annotation is: true [2020-07-20 18:13:28,856 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 457 464) the Hoare annotation is: true [2020-07-20 18:13:28,856 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 18:13:28,857 INFO L268 CegarLoopResult]: For program point L459(lines 459 462) no Hoare annotation was computed. [2020-07-20 18:13:28,857 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-20 18:13:28,857 INFO L268 CegarLoopResult]: For program point L459-2(lines 457 464) no Hoare annotation was computed. [2020-07-20 18:13:28,857 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2020-07-20 18:13:28,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 06:13:28 BoogieIcfgContainer [2020-07-20 18:13:28,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 18:13:28,886 INFO L168 Benchmark]: Toolchain (without parser) took 11996.34 ms. Allocated memory was 137.4 MB in the beginning and 289.9 MB in the end (delta: 152.6 MB). Free memory was 101.3 MB in the beginning and 107.0 MB in the end (delta: -5.6 MB). Peak memory consumption was 146.9 MB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,887 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.39 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 172.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,888 INFO L168 Benchmark]: Boogie Preprocessor took 126.69 ms. Allocated memory is still 201.9 MB. Free memory was 172.2 MB in the beginning and 168.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,889 INFO L168 Benchmark]: RCFGBuilder took 3284.59 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 105.2 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,890 INFO L168 Benchmark]: TraceAbstraction took 7951.59 ms. Allocated memory was 201.9 MB in the beginning and 289.9 MB in the end (delta: 88.1 MB). Free memory was 105.2 MB in the beginning and 107.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2020-07-20 18:13:28,894 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.39 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 172.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.69 ms. Allocated memory is still 201.9 MB. Free memory was 172.2 MB in the beginning and 168.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3284.59 ms. Allocated memory is still 201.9 MB. Free memory was 167.7 MB in the beginning and 105.2 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7951.59 ms. Allocated memory was 201.9 MB in the beginning and 289.9 MB in the end (delta: 88.1 MB). Free memory was 105.2 MB in the beginning and 107.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: 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: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 6144 == Id_MCDC_123 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.8s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1291 SDtfs, 292 SDslu, 3278 SDs, 0 SdLazy, 299 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 497 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 145 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 322 PreInvPairs, 359 NumberOfFragments, 210 HoareAnnotationTreeSize, 322 FomulaSimplifications, 113 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 34 FomulaSimplificationsInter, 160 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 386 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 32553 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3661 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 140/148 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...