/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 2 -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 19:59:58,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 19:59:58,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 19:59:58,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 19:59:58,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 19:59:58,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 19:59:58,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 19:59:58,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 19:59:59,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 19:59:59,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 19:59:59,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 19:59:59,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 19:59:59,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 19:59:59,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 19:59:59,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 19:59:59,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 19:59:59,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 19:59:59,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 19:59:59,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 19:59:59,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 19:59:59,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 19:59:59,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 19:59:59,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 19:59:59,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 19:59:59,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 19:59:59,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 19:59:59,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 19:59:59,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 19:59:59,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 19:59:59,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 19:59:59,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 19:59:59,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 19:59:59,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 19:59:59,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 19:59:59,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 19:59:59,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 19:59:59,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 19:59:59,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 19:59:59,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 19:59:59,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 19:59:59,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 19:59:59,050 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 19:59:59,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 19:59:59,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 19:59:59,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 19:59:59,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 19:59:59,092 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 19:59:59,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 19:59:59,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 19:59:59,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 19:59:59,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 19:59:59,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 19:59:59,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 19:59:59,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 19:59:59,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 19:59:59,093 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 19:59:59,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 19:59:59,094 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 19:59:59,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 19:59:59,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 19:59:59,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 19:59:59,097 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 19:59:59,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 19:59:59,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 19:59:59,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 19:59:59,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 19:59:59,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 19:59:59,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 19:59:59,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 19:59:59,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 19:59:59,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 19:59:59,099 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 -> 2 [2020-07-21 19:59:59,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 19:59:59,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 19:59:59,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 19:59:59,445 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 19:59:59,445 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 19:59:59,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-21 19:59:59,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f563d40e2/d990ddcaddf3483fbd4b2c36585a0083/FLAGbbed74569 [2020-07-21 20:00:00,079 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:00:00,080 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-07-21 20:00:00,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f563d40e2/d990ddcaddf3483fbd4b2c36585a0083/FLAGbbed74569 [2020-07-21 20:00:00,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f563d40e2/d990ddcaddf3483fbd4b2c36585a0083 [2020-07-21 20:00:00,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:00:00,403 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:00:00,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:00:00,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:00:00,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:00:00,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc7c5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00, skipping insertion in model container [2020-07-21 20:00:00,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:00:00,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:00:00,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:00:00,647 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:00:00,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:00:00,811 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:00:00,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00 WrapperNode [2020-07-21 20:00:00,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:00:00,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:00:00,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:00:00,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:00:00,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (1/1) ... [2020-07-21 20:00:00,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:00:00,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:00:00,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:00:00,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:00:00,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (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 20:00:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:00:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:00:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-21 20:00:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-07-21 20:00:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:00:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-21 20:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-21 20:00:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-07-21 20:00:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-07-21 20:00:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-07-21 20:00:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:00:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:00:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 20:00:00,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 20:00:01,431 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:00:01,432 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 20:00:01,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:00:01 BoogieIcfgContainer [2020-07-21 20:00:01,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:00:01,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:00:01,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:00:01,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:00:01,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:00:00" (1/3) ... [2020-07-21 20:00:01,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e77397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:00:01, skipping insertion in model container [2020-07-21 20:00:01,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:00" (2/3) ... [2020-07-21 20:00:01,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e77397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:00:01, skipping insertion in model container [2020-07-21 20:00:01,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:00:01" (3/3) ... [2020-07-21 20:00:01,447 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-07-21 20:00:01,456 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:00:01,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:00:01,477 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:00:01,504 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:00:01,504 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:00:01,505 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:00:01,505 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:00:01,505 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:00:01,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:00:01,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:00:01,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:00:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-07-21 20:00:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-21 20:00:01,531 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:00:01,532 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 20:00:01,533 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:00:01,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:00:01,541 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-07-21 20:00:01,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:00:01,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847747603] [2020-07-21 20:00:01,553 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:00:01,693 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:00:01,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:00:01,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:00:01,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:00:01,799 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 20:00:01,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:00:01,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847747603] [2020-07-21 20:00:01,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:00:01,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 20:00:01,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216490877] [2020-07-21 20:00:01,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:00:01,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:00:01,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:00:01,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:00:01,832 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 6 states. [2020-07-21 20:00:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:00:01,934 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2020-07-21 20:00:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:00:01,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-21 20:00:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:00:01,948 INFO L225 Difference]: With dead ends: 77 [2020-07-21 20:00:01,949 INFO L226 Difference]: Without dead ends: 58 [2020-07-21 20:00:01,953 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 20:00:01,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-07-21 20:00:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-07-21 20:00:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-21 20:00:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-07-21 20:00:02,010 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-07-21 20:00:02,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:00:02,013 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-07-21 20:00:02,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:00:02,013 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-07-21 20:00:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-21 20:00:02,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:00:02,016 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 20:00:02,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:00:02,228 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:00:02,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:00:02,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-07-21 20:00:02,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:00:02,231 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769150076] [2020-07-21 20:00:02,232 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:00:02,315 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:00:02,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:00:02,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 20:00:02,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:00:02,374 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 20:00:02,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:00:02,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769150076] [2020-07-21 20:00:02,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:00:02,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 20:00:02,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922721520] [2020-07-21 20:00:02,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:00:02,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:00:02,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:00:02,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:00:02,380 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 6 states. [2020-07-21 20:00:02,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:00:02,483 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2020-07-21 20:00:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:00:02,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-07-21 20:00:02,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:00:02,487 INFO L225 Difference]: With dead ends: 75 [2020-07-21 20:00:02,487 INFO L226 Difference]: Without dead ends: 66 [2020-07-21 20:00:02,488 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 20:00:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-21 20:00:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-21 20:00:02,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-21 20:00:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-07-21 20:00:02,504 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-07-21 20:00:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:00:02,524 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-07-21 20:00:02,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:00:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-07-21 20:00:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 20:00:02,528 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:00:02,529 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 20:00:02,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:00:02,737 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:00:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:00:02,738 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-07-21 20:00:02,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:00:02,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994024472] [2020-07-21 20:00:02,740 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:00:02,868 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:00:02,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:00:02,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 20:00:02,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:00:02,898 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 20:00:02,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:00:02,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994024472] [2020-07-21 20:00:02,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:00:02,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:00:02,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174892985] [2020-07-21 20:00:02,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:00:02,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:00:02,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:00:02,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:00:02,901 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 3 states. [2020-07-21 20:00:02,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:00:02,921 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2020-07-21 20:00:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:00:02,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 20:00:02,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:00:02,924 INFO L225 Difference]: With dead ends: 78 [2020-07-21 20:00:02,924 INFO L226 Difference]: Without dead ends: 66 [2020-07-21 20:00:02,925 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 20:00:02,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-21 20:00:02,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-07-21 20:00:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-21 20:00:02,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-21 20:00:02,941 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-07-21 20:00:02,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:00:02,942 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-21 20:00:02,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:00:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-21 20:00:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 20:00:02,944 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:00:02,944 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 20:00:03,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:00:03,159 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:00:03,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:00:03,160 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-07-21 20:00:03,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:00:03,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064298768] [2020-07-21 20:00:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 20:00:03,264 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:00:03,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 20:00:03,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 20:00:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 20:00:03,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 20:00:03,366 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 20:00:03,367 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 20:00:03,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:00:03,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:00:03 BoogieIcfgContainer [2020-07-21 20:00:03,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:00:03,648 INFO L168 Benchmark]: Toolchain (without parser) took 3245.72 ms. Allocated memory was 143.1 MB in the beginning and 230.2 MB in the end (delta: 87.0 MB). Free memory was 99.2 MB in the beginning and 139.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,649 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.85 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 178.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,651 INFO L168 Benchmark]: Boogie Preprocessor took 49.26 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 175.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,652 INFO L168 Benchmark]: RCFGBuilder took 576.47 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 151.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,653 INFO L168 Benchmark]: TraceAbstraction took 2204.88 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 151.0 MB in the beginning and 139.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:00:03,658 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 143.1 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 408.85 ms. Allocated memory was 143.1 MB in the beginning and 200.8 MB in the end (delta: 57.7 MB). Free memory was 98.8 MB in the beginning and 178.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.26 ms. Allocated memory is still 200.8 MB. Free memory was 178.4 MB in the beginning and 175.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 576.47 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 151.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2204.88 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 151.0 MB in the beginning and 139.7 MB in the end (delta: 11.3 MB). Peak memory consumption was 40.7 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)=7, \old(tmp_slot)=12, \old(tmp_slot)=11, \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)={-1:0}, 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={-1:0}, calloc(1, size)={-1:0}, 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)={-1:0}, 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={-1:0}, 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)={-2:0}, 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={-2:0}, calloc(1, size)={-2:0}, 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={-1:0}, kzalloc(sizeof(*tmp_slot), 1)={-2:0}, 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={-1:0}, tmp_slot={-2:0}, 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={-2:0}, 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={-2:0}, 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={-1:0}, ibmphp_find_same_bus_num()={0:0}, tmp_slot={-2:0}, 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={-1:0}, rc=-3, tmp_slot={-2:0}, 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={-1:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={-2:0}, 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={0:0}, tmp_slot={-2:0}, 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={0:0}, p={0:0}, tmp_slot={-2:0}, 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={-1:0}, hp_slot_ptr->private={0:0}, rc=-3, tmp_slot={-2:0}, 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={-1:0}, rc=-3, tmp_slot={-2:0}, 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={-2:0}, 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={-2:0}, 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={-2:0}, 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={-2:0}, 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={-2:0}, 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, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 6419 SizeOfPredicates, 3 NumberOfNonLiveVariables, 485 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...