/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 22:47:47,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 22:47:47,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 22:47:47,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 22:47:47,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 22:47:47,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 22:47:47,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 22:47:47,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 22:47:47,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 22:47:47,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 22:47:47,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 22:47:47,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 22:47:47,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 22:47:47,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 22:47:47,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 22:47:47,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 22:47:47,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 22:47:47,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 22:47:47,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 22:47:47,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 22:47:47,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 22:47:47,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 22:47:47,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 22:47:47,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 22:47:47,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 22:47:47,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 22:47:47,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 22:47:47,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 22:47:47,369 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 22:47:47,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 22:47:47,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 22:47:47,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 22:47:47,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 22:47:47,389 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 22:47:47,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 22:47:47,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 22:47:47,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 22:47:47,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 22:47:47,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 22:47:47,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 22:47:47,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 22:47:47,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 22:47:47,391 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 22:47:47,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 22:47:47,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 22:47:47,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 22:47:47,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 22:47:47,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 22:47:47,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 22:47:47,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 22:47:47,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 22:47:47,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 22:47:47,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 22:47:47,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 22:47:47,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 22:47:47,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:47,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 22:47:47,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 22:47:47,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 22:47:47,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 22:47:47,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 22:47:47,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 22:47:47,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 22:47:47,763 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 22:47:47,764 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-20 22:47:47,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f4b4df61/7560138e7f744c4aa0e2abe6bb939421/FLAG92f95efa2 [2020-07-20 22:47:48,611 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 22:47:48,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-20 22:47:48,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f4b4df61/7560138e7f744c4aa0e2abe6bb939421/FLAG92f95efa2 [2020-07-20 22:47:48,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f4b4df61/7560138e7f744c4aa0e2abe6bb939421 [2020-07-20 22:47:48,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 22:47:48,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 22:47:48,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 22:47:48,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 22:47:48,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 22:47:48,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:47:48" (1/1) ... [2020-07-20 22:47:48,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5526846d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:48, skipping insertion in model container [2020-07-20 22:47:48,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:47:48" (1/1) ... [2020-07-20 22:47:48,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 22:47:48,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 22:47:49,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:47:49,484 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 22:47:49,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 22:47:49,617 INFO L208 MainTranslator]: Completed translation [2020-07-20 22:47:49,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49 WrapperNode [2020-07-20 22:47:49,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 22:47:49,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 22:47:49,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 22:47:49,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 22:47:49,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (1/1) ... [2020-07-20 22:47:49,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 22:47:49,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 22:47:49,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 22:47:49,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 22:47:49,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (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 22:47:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 22:47:49,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 22:47:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 22:47:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-07-20 22:47:49,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-07-20 22:47:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-07-20 22:47:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-07-20 22:47:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-07-20 22:47:49,826 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-07-20 22:47:49,827 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-07-20 22:47:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-07-20 22:47:49,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 22:47:49,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 22:47:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 22:47:49,829 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 22:47:49,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 22:47:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-07-20 22:47:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-07-20 22:47:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-07-20 22:47:49,831 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-07-20 22:47:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-07-20 22:47:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-07-20 22:47:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-07-20 22:47:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 22:47:49,832 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-07-20 22:47:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-07-20 22:47:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-20 22:47:49,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 22:47:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 22:47:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 22:47:49,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 22:47:49,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 22:47:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 22:47:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 22:47:49,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 22:47:52,843 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 22:47:52,844 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-20 22:47:52,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:47:52 BoogieIcfgContainer [2020-07-20 22:47:52,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 22:47:52,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 22:47:52,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 22:47:52,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 22:47:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:47:48" (1/3) ... [2020-07-20 22:47:52,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4632ed56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:47:52, skipping insertion in model container [2020-07-20 22:47:52,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:47:49" (2/3) ... [2020-07-20 22:47:52,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4632ed56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:47:52, skipping insertion in model container [2020-07-20 22:47:52,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:47:52" (3/3) ... [2020-07-20 22:47:52,860 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2020-07-20 22:47:52,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 22:47:52,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 22:47:52,891 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 22:47:52,915 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 22:47:52,915 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 22:47:52,916 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 22:47:52,916 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 22:47:52,916 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 22:47:52,916 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 22:47:52,916 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 22:47:52,916 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 22:47:52,947 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-07-20 22:47:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-20 22:47:52,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:52,962 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 22:47:52,962 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:52,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:52,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1328586124, now seen corresponding path program 1 times [2020-07-20 22:47:52,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:52,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [792453820] [2020-07-20 22:47:52,979 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 22:47:53,275 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 22:47:53,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:53,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 22:47:53,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:53,342 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 22:47:53,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:53,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [792453820] [2020-07-20 22:47:53,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:53,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 22:47:53,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920906182] [2020-07-20 22:47:53,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 22:47:53,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:53,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 22:47:53,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 22:47:53,370 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 4 states. [2020-07-20 22:47:53,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:53,494 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2020-07-20 22:47:53,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 22:47:53,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2020-07-20 22:47:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:53,512 INFO L225 Difference]: With dead ends: 258 [2020-07-20 22:47:53,512 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 22:47:53,519 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 22:47:53,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 22:47:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 22:47:53,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 22:47:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 183 transitions. [2020-07-20 22:47:53,586 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 183 transitions. Word has length 43 [2020-07-20 22:47:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:53,587 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 183 transitions. [2020-07-20 22:47:53,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 22:47:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 183 transitions. [2020-07-20 22:47:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 22:47:53,593 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:53,593 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 22:47:53,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:53,807 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash -671776074, now seen corresponding path program 1 times [2020-07-20 22:47:53,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:53,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551196024] [2020-07-20 22:47:53,810 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 22:47:53,998 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:53,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:54,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:54,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:54,021 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 22:47:54,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:54,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551196024] [2020-07-20 22:47:54,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:54,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:54,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274148274] [2020-07-20 22:47:54,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:54,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:54,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:54,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:54,027 INFO L87 Difference]: Start difference. First operand 132 states and 183 transitions. Second operand 3 states. [2020-07-20 22:47:54,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:54,088 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2020-07-20 22:47:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:54,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 22:47:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:54,094 INFO L225 Difference]: With dead ends: 270 [2020-07-20 22:47:54,094 INFO L226 Difference]: Without dead ends: 153 [2020-07-20 22:47:54,097 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 22:47:54,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-20 22:47:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 133. [2020-07-20 22:47:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 22:47:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 184 transitions. [2020-07-20 22:47:54,120 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 184 transitions. Word has length 51 [2020-07-20 22:47:54,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:54,120 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 184 transitions. [2020-07-20 22:47:54,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 184 transitions. [2020-07-20 22:47:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 22:47:54,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:54,125 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 22:47:54,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:54,338 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:54,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:54,339 INFO L82 PathProgramCache]: Analyzing trace with hash -713052232, now seen corresponding path program 1 times [2020-07-20 22:47:54,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:54,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768918157] [2020-07-20 22:47:54,340 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 22:47:54,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:54,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:54,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:54,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:54,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:54,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768918157] [2020-07-20 22:47:54,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:54,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:54,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780136074] [2020-07-20 22:47:54,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:54,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:54,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:54,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:54,601 INFO L87 Difference]: Start difference. First operand 133 states and 184 transitions. Second operand 3 states. [2020-07-20 22:47:54,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:54,636 INFO L93 Difference]: Finished difference Result 196 states and 266 transitions. [2020-07-20 22:47:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:54,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 22:47:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:54,643 INFO L225 Difference]: With dead ends: 196 [2020-07-20 22:47:54,644 INFO L226 Difference]: Without dead ends: 141 [2020-07-20 22:47:54,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 22:47:54,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-20 22:47:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133. [2020-07-20 22:47:54,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-20 22:47:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 183 transitions. [2020-07-20 22:47:54,664 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 183 transitions. Word has length 53 [2020-07-20 22:47:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:54,665 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 183 transitions. [2020-07-20 22:47:54,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 183 transitions. [2020-07-20 22:47:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-20 22:47:54,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:54,668 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, 1] [2020-07-20 22:47:54,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:54,883 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:54,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1059449835, now seen corresponding path program 1 times [2020-07-20 22:47:54,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:54,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264310010] [2020-07-20 22:47:54,885 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 22:47:55,038 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 22:47:55,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:55,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 22:47:55,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:55,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:55,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264310010] [2020-07-20 22:47:55,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:55,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 22:47:55,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41216657] [2020-07-20 22:47:55,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 22:47:55,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:55,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 22:47:55,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 22:47:55,069 INFO L87 Difference]: Start difference. First operand 133 states and 183 transitions. Second operand 3 states. [2020-07-20 22:47:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:55,102 INFO L93 Difference]: Finished difference Result 206 states and 282 transitions. [2020-07-20 22:47:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 22:47:55,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-07-20 22:47:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:55,105 INFO L225 Difference]: With dead ends: 206 [2020-07-20 22:47:55,105 INFO L226 Difference]: Without dead ends: 151 [2020-07-20 22:47:55,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 22:47:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-20 22:47:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 134. [2020-07-20 22:47:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-20 22:47:55,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 184 transitions. [2020-07-20 22:47:55,121 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 184 transitions. Word has length 54 [2020-07-20 22:47:55,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:55,121 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 184 transitions. [2020-07-20 22:47:55,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 22:47:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 184 transitions. [2020-07-20 22:47:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 22:47:55,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 22:47:55,123 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, 1, 1, 1, 1, 1, 1] [2020-07-20 22:47:55,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:55,337 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 22:47:55,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 22:47:55,337 INFO L82 PathProgramCache]: Analyzing trace with hash -387011243, now seen corresponding path program 1 times [2020-07-20 22:47:55,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 22:47:55,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621034514] [2020-07-20 22:47:55,338 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 22:47:55,551 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 22:47:55,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 22:47:55,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 22:47:55,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 22:47:55,588 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,593 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,595 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,599 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,609 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,613 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,614 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:47:55,617 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,618 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,619 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,620 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:47:55,622 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,626 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,627 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:47:55,629 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,633 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,636 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,639 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,645 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:47:55,648 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,657 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,660 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,661 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:47:55,662 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-20 22:47:55,664 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,668 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,686 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 22:47:55,689 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,700 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-20 22:47:55,708 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,709 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,709 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,742 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:47:55,746 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,748 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,749 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 22:47:55,750 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 22:47:55,751 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 22:47:55,786 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 22:47:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 22:47:55,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 22:47:55,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621034514] [2020-07-20 22:47:55,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 22:47:55,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 22:47:55,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985937690] [2020-07-20 22:47:55,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 22:47:55,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 22:47:55,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 22:47:55,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 22:47:55,813 INFO L87 Difference]: Start difference. First operand 134 states and 184 transitions. Second operand 5 states. [2020-07-20 22:47:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 22:47:55,865 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2020-07-20 22:47:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 22:47:55,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2020-07-20 22:47:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 22:47:55,868 INFO L225 Difference]: With dead ends: 170 [2020-07-20 22:47:55,868 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 22:47:55,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 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 22:47:55,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 22:47:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 22:47:55,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 22:47:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 22:47:55,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-07-20 22:47:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 22:47:55,871 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 22:47:55,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 22:47:55,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 22:47:55,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 22:47:56,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 22:47:56,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 22:47:56,390 INFO L268 CegarLoopResult]: For program point Id_MCDC_100FINAL(lines 418 424) no Hoare annotation was computed. [2020-07-20 22:47:56,390 INFO L268 CegarLoopResult]: For program point Id_MCDC_100EXIT(lines 418 424) no Hoare annotation was computed. [2020-07-20 22:47:56,391 INFO L271 CegarLoopResult]: At program point Id_MCDC_100ENTRY(lines 418 424) the Hoare annotation is: true [2020-07-20 22:47:56,391 INFO L271 CegarLoopResult]: At program point L422(line 422) the Hoare annotation is: true [2020-07-20 22:47:56,391 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 22:47:56,391 INFO L271 CegarLoopResult]: At program point L403(line 403) the Hoare annotation is: true [2020-07-20 22:47:56,391 INFO L268 CegarLoopResult]: For program point L403-1(line 403) no Hoare annotation was computed. [2020-07-20 22:47:56,391 INFO L271 CegarLoopResult]: At program point Id_MCDC_99ENTRY(lines 398 417) the Hoare annotation is: true [2020-07-20 22:47:56,392 INFO L268 CegarLoopResult]: For program point Id_MCDC_99EXIT(lines 398 417) no Hoare annotation was computed. [2020-07-20 22:47:56,392 INFO L268 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-07-20 22:47:56,392 INFO L268 CegarLoopResult]: For program point L406-2(lines 406 413) no Hoare annotation was computed. [2020-07-20 22:47:56,392 INFO L268 CegarLoopResult]: For program point L404-2(lines 404 414) no Hoare annotation was computed. [2020-07-20 22:47:56,392 INFO L271 CegarLoopResult]: At program point L404-3(lines 404 414) the Hoare annotation is: true [2020-07-20 22:47:56,392 INFO L271 CegarLoopResult]: At program point L404-4(lines 404 414) the Hoare annotation is: true [2020-07-20 22:47:56,392 INFO L268 CegarLoopResult]: For program point Id_MCDC_99FINAL(lines 398 417) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point L213(line 213) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point L209-2(line 209) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L271 CegarLoopResult]: At program point Id_MCDC_89ENTRY(lines 191 246) the Hoare annotation is: true [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point Id_MCDC_89EXIT(lines 191 246) no Hoare annotation was computed. [2020-07-20 22:47:56,393 INFO L268 CegarLoopResult]: For program point L234(lines 234 239) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L234-1(lines 232 244) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L202(lines 202 205) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point Id_MCDC_89FINAL(lines 191 246) no Hoare annotation was computed. [2020-07-20 22:47:56,394 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L271 CegarLoopResult]: At program point L207(lines 207 223) the Hoare annotation is: true [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-07-20 22:47:56,395 INFO L268 CegarLoopResult]: For program point L232-3(line 232) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L232-5(lines 232 244) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L224-1(lines 224 231) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L271 CegarLoopResult]: At program point L224-3(lines 224 231) the Hoare annotation is: true [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L224-4(lines 224 231) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-07-20 22:47:56,396 INFO L268 CegarLoopResult]: For program point L200(lines 200 206) no Hoare annotation was computed. [2020-07-20 22:47:56,397 INFO L268 CegarLoopResult]: For program point L200-2(lines 200 206) no Hoare annotation was computed. [2020-07-20 22:47:56,397 INFO L268 CegarLoopResult]: For program point L196(lines 196 199) no Hoare annotation was computed. [2020-07-20 22:47:56,397 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 425 456) the Hoare annotation is: true [2020-07-20 22:47:56,397 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 425 456) no Hoare annotation was computed. [2020-07-20 22:47:56,397 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 425 456) no Hoare annotation was computed. [2020-07-20 22:47:56,397 INFO L271 CegarLoopResult]: At program point L455(line 455) the Hoare annotation is: true [2020-07-20 22:47:56,397 INFO L268 CegarLoopResult]: For program point L450(lines 450 453) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L268 CegarLoopResult]: For program point L374-2(lines 374 391) no Hoare annotation was computed. [2020-07-20 22:47:56,398 INFO L271 CegarLoopResult]: At program point L374-3(lines 374 391) the Hoare annotation is: true [2020-07-20 22:47:56,399 INFO L268 CegarLoopResult]: For program point L374-4(lines 374 391) no Hoare annotation was computed. [2020-07-20 22:47:56,399 INFO L271 CegarLoopResult]: At program point Id_MCDC_97ENTRY(lines 329 397) the Hoare annotation is: true [2020-07-20 22:47:56,399 INFO L268 CegarLoopResult]: For program point Id_MCDC_97EXIT(lines 329 397) no Hoare annotation was computed. [2020-07-20 22:47:56,399 INFO L268 CegarLoopResult]: For program point L387(lines 387 390) no Hoare annotation was computed. [2020-07-20 22:47:56,399 INFO L268 CegarLoopResult]: For program point L354(lines 354 395) no Hoare annotation was computed. [2020-07-20 22:47:56,400 INFO L268 CegarLoopResult]: For program point L350-2(lines 350 353) no Hoare annotation was computed. [2020-07-20 22:47:56,400 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 22:47:56,400 INFO L268 CegarLoopResult]: For program point L350-4(lines 330 397) no Hoare annotation was computed. [2020-07-20 22:47:56,400 INFO L271 CegarLoopResult]: At program point L363(line 363) the Hoare annotation is: true [2020-07-20 22:47:56,400 INFO L268 CegarLoopResult]: For program point L363-1(lines 363 366) no Hoare annotation was computed. [2020-07-20 22:47:56,400 INFO L268 CegarLoopResult]: For program point Id_MCDC_97FINAL(lines 329 397) no Hoare annotation was computed. [2020-07-20 22:47:56,401 INFO L271 CegarLoopResult]: At program point L359(line 359) the Hoare annotation is: true [2020-07-20 22:47:56,401 INFO L268 CegarLoopResult]: For program point L359-1(lines 359 362) no Hoare annotation was computed. [2020-07-20 22:47:56,401 INFO L271 CegarLoopResult]: At program point L376(line 376) the Hoare annotation is: true [2020-07-20 22:47:56,401 INFO L268 CegarLoopResult]: For program point L376-1(lines 376 379) no Hoare annotation was computed. [2020-07-20 22:47:56,401 INFO L268 CegarLoopResult]: For program point L356-2(lines 356 394) no Hoare annotation was computed. [2020-07-20 22:47:56,401 INFO L271 CegarLoopResult]: At program point L356-3(lines 356 394) the Hoare annotation is: true [2020-07-20 22:47:56,401 INFO L271 CegarLoopResult]: At program point L369(line 369) the Hoare annotation is: true [2020-07-20 22:47:56,402 INFO L268 CegarLoopResult]: For program point L369-1(lines 369 372) no Hoare annotation was computed. [2020-07-20 22:47:56,402 INFO L271 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-07-20 22:47:56,402 INFO L271 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 278 297) the Hoare annotation is: true [2020-07-20 22:47:56,402 INFO L268 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 278 297) no Hoare annotation was computed. [2020-07-20 22:47:56,402 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-07-20 22:47:56,402 INFO L264 CegarLoopResult]: At program point L294(line 294) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:56,403 INFO L264 CegarLoopResult]: At program point L296-2(line 296) the Hoare annotation is: (and |Id_MCDC_95_#t~short23| (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4)))) [2020-07-20 22:47:56,403 INFO L268 CegarLoopResult]: For program point L294-1(line 294) no Hoare annotation was computed. [2020-07-20 22:47:56,403 INFO L268 CegarLoopResult]: For program point L296-3(line 296) no Hoare annotation was computed. [2020-07-20 22:47:56,403 INFO L264 CegarLoopResult]: At program point L288(line 288) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:56,403 INFO L268 CegarLoopResult]: For program point L288-1(line 288) no Hoare annotation was computed. [2020-07-20 22:47:56,403 INFO L268 CegarLoopResult]: For program point L286(lines 286 293) no Hoare annotation was computed. [2020-07-20 22:47:56,404 INFO L268 CegarLoopResult]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2020-07-20 22:47:56,404 INFO L268 CegarLoopResult]: For program point L282(lines 282 285) no Hoare annotation was computed. [2020-07-20 22:47:56,404 INFO L264 CegarLoopResult]: At program point L295(line 295) the Hoare annotation is: (or (= 4 Id_MCDC_95_~Id_MCDC_93) (not (= |Id_MCDC_95_#in~Id_MCDC_93| 4))) [2020-07-20 22:47:56,404 INFO L268 CegarLoopResult]: For program point L295-1(line 295) no Hoare annotation was computed. [2020-07-20 22:47:56,404 INFO L268 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 278 297) no Hoare annotation was computed. [2020-07-20 22:47:56,404 INFO L268 CegarLoopResult]: For program point L316(lines 316 321) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L316-1(lines 314 326) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L314(line 314) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L314-2(line 314) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L314-3(line 314) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L314-5(lines 314 326) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L268 CegarLoopResult]: For program point L306-1(lines 306 313) no Hoare annotation was computed. [2020-07-20 22:47:56,405 INFO L271 CegarLoopResult]: At program point L306-3(lines 306 313) the Hoare annotation is: true [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point L302(lines 302 305) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point L306-4(lines 306 313) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point Id_MCDC_96FINAL(lines 298 328) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point L309(lines 309 312) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L271 CegarLoopResult]: At program point Id_MCDC_96ENTRY(lines 298 328) the Hoare annotation is: true [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point Id_MCDC_96EXIT(lines 298 328) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L268 CegarLoopResult]: For program point L253(lines 253 267) no Hoare annotation was computed. [2020-07-20 22:47:56,406 INFO L271 CegarLoopResult]: At program point Id_MCDC_92ENTRY(lines 247 277) the Hoare annotation is: true [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point Id_MCDC_92EXIT(lines 247 277) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point Id_MCDC_92FINAL(lines 247 277) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L271 CegarLoopResult]: At program point L270(line 270) the Hoare annotation is: true [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point L270-1(line 270) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point L268-1(lines 248 277) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point L268-2(lines 268 275) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point L259(lines 259 267) no Hoare annotation was computed. [2020-07-20 22:47:56,407 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:47:56,408 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:47:56,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:47:56,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 22:47:56,408 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 22:47:56,408 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 22:47:56,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 22:47:56,408 INFO L268 CegarLoopResult]: For program point avoid_zeroEXIT(lines 7 13) no Hoare annotation was computed. [2020-07-20 22:47:56,408 INFO L268 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-07-20 22:47:56,409 INFO L268 CegarLoopResult]: For program point L9-2(lines 7 13) no Hoare annotation was computed. [2020-07-20 22:47:56,409 INFO L271 CegarLoopResult]: At program point avoid_zeroENTRY(lines 7 13) the Hoare annotation is: true [2020-07-20 22:47:56,409 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 457 464) the Hoare annotation is: true [2020-07-20 22:47:56,409 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 22:47:56,409 INFO L268 CegarLoopResult]: For program point L459(lines 459 462) no Hoare annotation was computed. [2020-07-20 22:47:56,409 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 457 464) no Hoare annotation was computed. [2020-07-20 22:47:56,409 INFO L268 CegarLoopResult]: For program point L459-2(lines 457 464) no Hoare annotation was computed. [2020-07-20 22:47:56,410 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2020-07-20 22:47:56,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:47:56 BoogieIcfgContainer [2020-07-20 22:47:56,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 22:47:56,433 INFO L168 Benchmark]: Toolchain (without parser) took 7548.01 ms. Allocated memory was 136.8 MB in the beginning and 248.5 MB in the end (delta: 111.7 MB). Free memory was 98.8 MB in the beginning and 162.0 MB in the end (delta: -63.2 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:56,434 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 136.8 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 22:47:56,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.98 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 98.4 MB in the beginning and 172.4 MB in the end (delta: -74.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:56,436 INFO L168 Benchmark]: Boogie Preprocessor took 113.66 ms. Allocated memory is still 202.4 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:56,437 INFO L168 Benchmark]: RCFGBuilder took 3117.49 ms. Allocated memory is still 202.4 MB. Free memory was 168.4 MB in the beginning and 104.7 MB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. [2020-07-20 22:47:56,438 INFO L168 Benchmark]: TraceAbstraction took 3578.56 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 104.7 MB in the beginning and 162.0 MB in the end (delta: -57.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 22:47:56,442 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 136.8 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 729.98 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 98.4 MB in the beginning and 172.4 MB in the end (delta: -74.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.66 ms. Allocated memory is still 202.4 MB. Free memory was 172.4 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3117.49 ms. Allocated memory is still 202.4 MB. Free memory was 168.4 MB in the beginning and 104.7 MB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3578.56 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 104.7 MB in the beginning and 162.0 MB in the end (delta: -57.2 MB). There was no memory consumed. 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: 3.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 861 SDtfs, 69 SDslu, 1302 SDs, 0 SdLazy, 49 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, 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, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 182 PreInvPairs, 204 NumberOfFragments, 66 HoareAnnotationTreeSize, 182 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 260 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 14247 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1817 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 43/43 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...