/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 BIGGEST_EQUIVALENCE_CLASS --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/ldv-regression/rule57_ebda_blast_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:40:18,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:40:18,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:40:18,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:40:18,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:40:18,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:40:18,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:40:18,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:40:18,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:40:18,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:40:18,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:40:19,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:40:19,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:40:19,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:40:19,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:40:19,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:40:19,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:40:19,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:40:19,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:40:19,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:40:19,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:40:19,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:40:19,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:40:19,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:40:19,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 22:40:19,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 22:40:19,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 22:40:19,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 22:40:19,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 22:40:19,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-21 22:40:19,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:40:19,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:40:19,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:40:19,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 22:40:19,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:40:19,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:40:19,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:40:19,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:40:19,069 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:40:19,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:40:19,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:40:19,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:40:19,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:40:19,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:40:19,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:40:19,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:40:19,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:40:19,072 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:40:19,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:40:19,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:40:19,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:40:19,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:40:19,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:40:19,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:40:19,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:40:19,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:40:19,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:40:19,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:40:19,077 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 -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-21 22:40:19,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:40:19,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:40:19,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:40:19,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:40:19,362 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:40:19,363 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-21 22:40:19,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db00fe906/07ab4dc74d474562963bb928af9f3380/FLAG4b11d2c55 [2020-07-21 22:40:19,860 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:40:19,861 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-21 22:40:19,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db00fe906/07ab4dc74d474562963bb928af9f3380/FLAG4b11d2c55 [2020-07-21 22:40:20,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db00fe906/07ab4dc74d474562963bb928af9f3380 [2020-07-21 22:40:20,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:40:20,278 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:40:20,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:40:20,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:40:20,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:40:20,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f84d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20, skipping insertion in model container [2020-07-21 22:40:20,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:40:20,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:40:20,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:40:20,531 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:40:20,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:40:20,663 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:40:20,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20 WrapperNode [2020-07-21 22:40:20,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:40:20,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:40:20,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:40:20,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:40:20,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... [2020-07-21 22:40:20,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:40:20,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:40:20,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:40:20,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:40:20,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:40:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:40:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:40:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-21 22:40:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-21 22:40:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-21 22:40:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-21 22:40:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-21 22:40:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-21 22:40:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-21 22:40:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:40:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-21 22:40:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:40:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:40:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-21 22:40:20,787 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-21 22:40:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-21 22:40:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 22:40:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-21 22:40:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-21 22:40:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-21 22:40:20,789 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-21 22:40:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-21 22:40:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-21 22:40:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 22:40:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 22:40:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 22:40:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:40:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:40:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:40:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 22:40:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 22:40:21,207 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:40:21,208 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 22:40:21,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:21 BoogieIcfgContainer [2020-07-21 22:40:21,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:40:21,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:40:21,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:40:21,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:40:21,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:40:20" (1/3) ... [2020-07-21 22:40:21,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e5493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:21, skipping insertion in model container [2020-07-21 22:40:21,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:40:20" (2/3) ... [2020-07-21 22:40:21,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e5493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:40:21, skipping insertion in model container [2020-07-21 22:40:21,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:40:21" (3/3) ... [2020-07-21 22:40:21,221 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-07-21 22:40:21,232 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:40:21,239 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:40:21,253 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:40:21,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:40:21,274 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:40:21,275 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:40:21,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:40:21,275 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:40:21,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:40:21,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:40:21,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:40:21,293 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-07-21 22:40:21,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 22:40:21,300 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:40:21,301 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] [2020-07-21 22:40:21,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:40:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:40:21,307 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-07-21 22:40:21,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:40:21,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632238400] [2020-07-21 22:40:21,314 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 [2020-07-21 22:40:21,468 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:40:21,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:40:21,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 22:40:21,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:40:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:40:21,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:40:21,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1632238400] [2020-07-21 22:40:21,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:40:21,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 22:40:21,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151894115] [2020-07-21 22:40:21,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:40:21,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:40:21,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:40:21,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:40:21,591 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 6 states. [2020-07-21 22:40:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:40:21,685 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2020-07-21 22:40:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 22:40:21,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-21 22:40:21,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:40:21,698 INFO L225 Difference]: With dead ends: 77 [2020-07-21 22:40:21,699 INFO L226 Difference]: Without dead ends: 58 [2020-07-21 22:40:21,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:40:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-21 22:40:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-07-21 22:40:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-21 22:40:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-07-21 22:40:21,749 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-07-21 22:40:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:40:21,751 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-07-21 22:40:21,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:40:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-07-21 22:40:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-21 22:40:21,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:40:21,755 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:40:21,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:21,967 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:40:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:40:21,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-07-21 22:40:21,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:40:21,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103398261] [2020-07-21 22:40:21,970 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 [2020-07-21 22:40:22,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:40:22,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:40:22,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 22:40:22,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:40:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 22:40:22,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:40:22,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103398261] [2020-07-21 22:40:22,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:40:22,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 22:40:22,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528710628] [2020-07-21 22:40:22,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:40:22,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:40:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:40:22,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:40:22,127 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 6 states. [2020-07-21 22:40:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:40:22,240 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2020-07-21 22:40:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:40:22,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-07-21 22:40:22,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:40:22,243 INFO L225 Difference]: With dead ends: 75 [2020-07-21 22:40:22,244 INFO L226 Difference]: Without dead ends: 66 [2020-07-21 22:40:22,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:40:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-21 22:40:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-21 22:40:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-21 22:40:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-07-21 22:40:22,272 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-07-21 22:40:22,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:40:22,272 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-07-21 22:40:22,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:40:22,273 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-07-21 22:40:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 22:40:22,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:40:22,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:40:22,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:22,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:40:22,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:40:22,489 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-07-21 22:40:22,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:40:22,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1040442152] [2020-07-21 22:40:22,491 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 [2020-07-21 22:40:22,628 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:40:22,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:40:22,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 22:40:22,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:40:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 22:40:22,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:40:22,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1040442152] [2020-07-21 22:40:22,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:40:22,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:40:22,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897535121] [2020-07-21 22:40:22,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:40:22,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:40:22,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:40:22,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:40:22,674 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 3 states. [2020-07-21 22:40:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:40:22,702 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-07-21 22:40:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:40:22,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 22:40:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:40:22,704 INFO L225 Difference]: With dead ends: 78 [2020-07-21 22:40:22,705 INFO L226 Difference]: Without dead ends: 66 [2020-07-21 22:40:22,706 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 [2020-07-21 22:40:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-21 22:40:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-21 22:40:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-21 22:40:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-21 22:40:22,731 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-07-21 22:40:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:40:22,732 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-21 22:40:22,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:40:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-21 22:40:22,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 22:40:22,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:40:22,739 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 22:40:22,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:22,944 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:40:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:40:22,945 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-07-21 22:40:22,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:40:22,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729298181] [2020-07-21 22:40:22,947 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 [2020-07-21 22:40:23,044 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:40:23,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 22:40:23,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:40:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 22:40:23,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 22:40:23,123 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 22:40:23,123 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 22:40:23,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:40:23,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:40:23 BoogieIcfgContainer [2020-07-21 22:40:23,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 22:40:23,463 INFO L168 Benchmark]: Toolchain (without parser) took 3183.69 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 104.4 MB in the beginning and 137.1 MB in the end (delta: -32.8 MB). Peak memory consumption was 63.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,464 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.12 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.9 MB in the beginning and 182.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,467 INFO L168 Benchmark]: Boogie Preprocessor took 41.46 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 180.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,468 INFO L168 Benchmark]: RCFGBuilder took 506.34 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 156.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,469 INFO L168 Benchmark]: TraceAbstraction took 2244.39 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 156.3 MB in the beginning and 137.1 MB in the end (delta: 19.2 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2020-07-21 22:40:23,478 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.12 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 103.9 MB in the beginning and 182.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.46 ms. Allocated memory is still 204.5 MB. Free memory was 182.8 MB in the beginning and 180.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 506.34 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 156.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2244.39 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 156.3 MB in the beginning and 137.1 MB in the end (delta: 19.2 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] struct slot *tmp_slot; [L41] int used_tmp_slot = 0; [L42] int freed_tmp_slot = 1; VAL [\old(freed_tmp_slot)=6, \old(tmp_slot)=11, \old(tmp_slot)=12, \old(used_tmp_slot)=10, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L136] CALL ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={8946:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=8, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={8946:0}, calloc(1, size)={8946:0}, flags=1, freed_tmp_slot=1, size=8, tmp_slot={0:0}, used_tmp_slot=0] [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, kzalloc(sizeof(*hp_slot_ptr), 1)={8946:0}, tmp_slot={0:0}, used_tmp_slot=0] [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={8946:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, tmp_slot={0:0}, used_tmp_slot=0] [L47] EXPR, FCALL calloc(1, size) VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L47] return calloc(1, size); VAL [\old(flags)=1, \old(freed_tmp_slot)=1, \old(size)=16, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={-1:0}, calloc(1, size)={-1:0}, flags=1, freed_tmp_slot=1, size=16, tmp_slot={0:0}, used_tmp_slot=0] [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=1, hp_slot_ptr={8946:0}, kzalloc(sizeof(*tmp_slot), 1)={-1:0}, tmp_slot={0:0}, used_tmp_slot=0] [L85] tmp_slot = kzalloc(sizeof(*tmp_slot), 1) [L87] COND FALSE !(!tmp_slot) [L92] used_tmp_slot = 0 [L93] freed_tmp_slot = 0 [L95] tmp_slot->a = 2 [L96] tmp_slot->b = 3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={8946:0}, tmp_slot={-1:0}, used_tmp_slot=0] [L98] CALL, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result={0:0}, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L98] RET, EXPR ibmphp_find_same_bus_num() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, hp_slot_ptr={8946:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-1:0}, used_tmp_slot=0] [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={8946:0}, rc=-3, tmp_slot={-1:0}, used_tmp_slot=0] [L127] EXPR hp_slot_ptr->private VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={8946:0}, hp_slot_ptr->private={23:24}, rc=-3, tmp_slot={-1:0}, used_tmp_slot=0] [L127] CALL kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={23:24}, tmp_slot={-1:0}, used_tmp_slot=0] [L50] COND FALSE !(p!=0 && p==tmp_slot) VAL [\old(freed_tmp_slot)=0, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, p={23:24}, p={23:24}, tmp_slot={-1:0}, used_tmp_slot=0] [L127] RET kfree(hp_slot_ptr->private) VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={8946:0}, hp_slot_ptr->private={23:24}, rc=-3, tmp_slot={-1:0}, used_tmp_slot=0] [L132] return rc; VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, \result=-3, bus_info_ptr1={0:0}, freed_tmp_slot=0, hp_slot_ptr={8946:0}, rc=-3, tmp_slot={-1:0}, used_tmp_slot=0] [L136] RET ebda_rsrc_controller() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, ebda_rsrc_controller()=-3, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L137] COND TRUE !used_tmp_slot VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L138] (freed_tmp_slot) ? (0) : __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L138] CALL __blast_assert () VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] [L7] __VERIFIER_error() VAL [\old(freed_tmp_slot)=1, \old(tmp_slot)=0, \old(tmp_slot)=0, \old(used_tmp_slot)=0, freed_tmp_slot=0, tmp_slot={-1:0}, used_tmp_slot=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 193 SDtfs, 88 SDslu, 482 SDs, 0 SdLazy, 51 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 165 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 6419 SizeOfPredicates, 3 NumberOfNonLiveVariables, 657 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 16/16 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 incorrect! Received shutdown request...