/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-21 23:48:29,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:48:29,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:48:29,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:48:29,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:48:29,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:48:29,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:48:29,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:48:29,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:48:29,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:48:29,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:48:29,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:48:29,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:48:29,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:48:29,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:48:29,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:48:29,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:48:29,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:48:29,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:48:29,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:48:29,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:48:29,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:48:29,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:48:29,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:48:29,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:48:29,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:48:29,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:48:29,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:48:29,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:48:29,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:48:29,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:48:29,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:48:29,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:48:29,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:48:29,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:48:29,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:48:29,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:48:29,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:48:29,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:48:29,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:48:29,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:48:29,102 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 23:48:29,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:48:29,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:48:29,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:48:29,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:48:29,140 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:48:29,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:48:29,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 23:48:29,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:48:29,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 23:48:29,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:48:29,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:48:29,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:48:29,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:48:29,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 23:48:29,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:48:29,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:48:29,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:48:29,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:48:29,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:48:29,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:48:29,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:48:29,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:48:29,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:48:29,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:48:29,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:48:29,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:48:29,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:48:29,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:48:29,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:48:29,146 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-08-21 23:48:29,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:48:29,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:48:29,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:48:29,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:48:29,494 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:48:29,495 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-21 23:48:29,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b770428/3c37f6fb315c4c1793f2ba7606e716e9/FLAGf1d5778fe [2020-08-21 23:48:30,034 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:48:30,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-08-21 23:48:30,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b770428/3c37f6fb315c4c1793f2ba7606e716e9/FLAGf1d5778fe [2020-08-21 23:48:30,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/48b770428/3c37f6fb315c4c1793f2ba7606e716e9 [2020-08-21 23:48:30,415 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:48:30,416 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:48:30,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:48:30,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:48:30,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:48:30,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30, skipping insertion in model container [2020-08-21 23:48:30,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:48:30,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:48:30,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:48:30,664 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:48:30,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:48:30,796 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:48:30,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30 WrapperNode [2020-08-21 23:48:30,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:48:30,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:48:30,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:48:30,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:48:30,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... [2020-08-21 23:48:30,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:48:30,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:48:30,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:48:30,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:48:30,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 23:48:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:48:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:48:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-08-21 23:48:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 23:48:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 23:48:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-08-21 23:48:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-08-21 23:48:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-08-21 23:48:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-08-21 23:48:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:48:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 23:48:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:48:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:48:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-08-21 23:48:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 23:48:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 23:48:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 23:48:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 23:48:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 23:48:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-08-21 23:48:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-08-21 23:48:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-08-21 23:48:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-08-21 23:48:30,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 23:48:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 23:48:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 23:48:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:48:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:48:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:48:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 23:48:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 23:48:31,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:48:31,299 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 23:48:31,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:48:31 BoogieIcfgContainer [2020-08-21 23:48:31,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:48:31,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:48:31,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:48:31,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:48:31,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:48:30" (1/3) ... [2020-08-21 23:48:31,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33943036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:48:31, skipping insertion in model container [2020-08-21 23:48:31,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:48:30" (2/3) ... [2020-08-21 23:48:31,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33943036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:48:31, skipping insertion in model container [2020-08-21 23:48:31,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:48:31" (3/3) ... [2020-08-21 23:48:31,315 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-08-21 23:48:31,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:48:31,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:48:31,344 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:48:31,369 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:48:31,369 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:48:31,370 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:48:31,370 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:48:31,370 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:48:31,370 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:48:31,370 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:48:31,370 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:48:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-08-21 23:48:31,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 23:48:31,396 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:48:31,397 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] [2020-08-21 23:48:31,398 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:48:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:48:31,404 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-08-21 23:48:31,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:48:31,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881031135] [2020-08-21 23:48:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:48:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:31,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:48:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:31,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 23:48:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:31,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 23:48:31,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881031135] [2020-08-21 23:48:31,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:48:31,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 23:48:31,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277543986] [2020-08-21 23:48:31,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:48:31,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:48:31,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:48:31,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:48:31,976 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-08-21 23:48:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:48:32,422 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-08-21 23:48:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 23:48:32,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-08-21 23:48:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:48:32,436 INFO L225 Difference]: With dead ends: 81 [2020-08-21 23:48:32,436 INFO L226 Difference]: Without dead ends: 62 [2020-08-21 23:48:32,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-08-21 23:48:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-08-21 23:48:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-08-21 23:48:32,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-08-21 23:48:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-08-21 23:48:32,497 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-08-21 23:48:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:48:32,499 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-08-21 23:48:32,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:48:32,499 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-08-21 23:48:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-21 23:48:32,502 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:48:32,503 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] [2020-08-21 23:48:32,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:48:32,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:48:32,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:48:32,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-08-21 23:48:32,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:48:32,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939479062] [2020-08-21 23:48:32,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:48:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:48:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 23:48:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:48:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:32,741 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 23:48:32,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939479062] [2020-08-21 23:48:32,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:48:32,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-21 23:48:32,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745739744] [2020-08-21 23:48:32,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:48:32,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:48:32,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:48:32,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:48:32,745 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-08-21 23:48:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:48:33,275 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-08-21 23:48:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 23:48:33,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-08-21 23:48:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:48:33,278 INFO L225 Difference]: With dead ends: 79 [2020-08-21 23:48:33,278 INFO L226 Difference]: Without dead ends: 70 [2020-08-21 23:48:33,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-08-21 23:48:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-21 23:48:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-08-21 23:48:33,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 23:48:33,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-08-21 23:48:33,294 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-08-21 23:48:33,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:48:33,295 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-08-21 23:48:33,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:48:33,295 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-08-21 23:48:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 23:48:33,297 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:48:33,297 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] [2020-08-21 23:48:33,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:48:33,298 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:48:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:48:33,298 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-08-21 23:48:33,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:48:33,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995382750] [2020-08-21 23:48:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:48:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:48:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 23:48:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:33,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:48:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:48:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:48:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-21 23:48:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:48:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-08-21 23:48:33,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995382750] [2020-08-21 23:48:33,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:48:33,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 23:48:33,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413309747] [2020-08-21 23:48:33,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:48:33,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:48:33,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:48:33,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:48:33,509 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-08-21 23:48:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:48:33,858 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-08-21 23:48:33,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-21 23:48:33,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-21 23:48:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:48:33,860 INFO L225 Difference]: With dead ends: 80 [2020-08-21 23:48:33,860 INFO L226 Difference]: Without dead ends: 68 [2020-08-21 23:48:33,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-08-21 23:48:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-21 23:48:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-21 23:48:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-21 23:48:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-08-21 23:48:33,873 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-08-21 23:48:33,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:48:33,873 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-08-21 23:48:33,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:48:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-08-21 23:48:33,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-21 23:48:33,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:48:33,875 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] [2020-08-21 23:48:33,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:48:33,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:48:33,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:48:33,876 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-08-21 23:48:33,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:48:33,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320109590] [2020-08-21 23:48:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:48:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 23:48:33,905 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 23:48:33,905 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 23:48:33,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:48:33,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:48:33 BoogieIcfgContainer [2020-08-21 23:48:33,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 23:48:33,935 INFO L168 Benchmark]: Toolchain (without parser) took 3518.09 ms. Allocated memory was 140.5 MB in the beginning and 245.9 MB in the end (delta: 105.4 MB). Free memory was 104.0 MB in the beginning and 119.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2020-08-21 23:48:33,936 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 23:48:33,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.69 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.5 MB in the beginning and 181.1 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-08-21 23:48:33,938 INFO L168 Benchmark]: Boogie Preprocessor took 44.57 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-08-21 23:48:33,939 INFO L168 Benchmark]: RCFGBuilder took 464.14 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 154.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-08-21 23:48:33,939 INFO L168 Benchmark]: TraceAbstraction took 2624.67 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 154.2 MB in the beginning and 119.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2020-08-21 23:48:33,943 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 379.69 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.5 MB in the beginning and 181.1 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.57 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.14 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 154.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2624.67 ms. Allocated memory was 202.9 MB in the beginning and 245.9 MB in the end (delta: 43.0 MB). Free memory was 154.2 MB in the beginning and 119.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 77.9 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; [L136] CALL ebda_rsrc_controller() [L73] struct hotplug_slot *hp_slot_ptr; [L75] struct bus_info *bus_info_ptr1; [L76] int rc; [L78] CALL, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L78] RET, EXPR kzalloc(sizeof(*hp_slot_ptr), 1) [L78] hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), 1) [L79] COND FALSE !(!hp_slot_ptr) [L83] hp_slot_ptr->b = 5 [L85] CALL, EXPR kzalloc(sizeof(*tmp_slot), 1) [L47] EXPR, FCALL calloc(1, size) [L47] return calloc(1, size); [L85] RET, EXPR kzalloc(sizeof(*tmp_slot), 1) [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 [L98] CALL, EXPR ibmphp_find_same_bus_num() [L56] COND TRUE __VERIFIER_nondet_int() [L57] return 0; [L98] RET, EXPR ibmphp_find_same_bus_num() [L98] bus_info_ptr1 = ibmphp_find_same_bus_num() [L99] COND TRUE !bus_info_ptr1 [L100] rc = -3 [L127] EXPR hp_slot_ptr->private [L127] CALL kfree(hp_slot_ptr->private) [L50] COND FALSE !(p!=0 && p==tmp_slot) [L127] RET kfree(hp_slot_ptr->private) [L132] return rc; [L136] RET ebda_rsrc_controller() [L137] COND TRUE !used_tmp_slot [L138] (freed_tmp_slot) ? (0) : __blast_assert () [L138] CALL __blast_assert () [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 208 SDslu, 436 SDs, 0 SdLazy, 521 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s 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, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 15684 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...