/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-eb0fd7c [2020-09-21 12:26:15,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:26:15,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:26:15,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:26:15,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:26:15,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:26:15,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:26:15,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:26:15,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:26:15,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:26:15,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:26:15,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:26:15,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:26:15,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:26:15,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:26:15,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:26:15,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:26:15,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:26:15,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:26:15,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:26:15,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:26:15,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:26:15,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:26:15,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:26:15,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:26:15,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:26:15,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:26:15,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:26:15,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:26:15,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:26:15,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:26:15,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:26:15,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:26:15,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:26:15,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:26:15,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:26:15,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:26:15,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:26:15,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:26:15,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:26:15,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:26:15,497 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 [2020-09-21 12:26:15,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:26:15,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:26:15,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:26:15,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:26:15,547 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:26:15,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:26:15,548 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:26:15,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:26:15,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:26:15,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:26:15,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:26:15,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:26:15,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:26:15,550 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:26:15,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:26:15,551 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:26:15,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:26:15,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:26:15,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:26:15,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:26:15,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:26:15,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:26:15,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:26:15,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:26:15,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:26:15,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:26:15,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:26:15,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:26:15,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:26:15,554 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:26:16,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:26:16,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:26:16,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:26:16,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:26:16,035 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:26:16,037 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-09-21 12:26:16,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cf01ea03/21142a48ff704f1fa301482614302659/FLAG3dd3979c9 [2020-09-21 12:26:16,679 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:26:16,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/rule57_ebda_blast_2.i [2020-09-21 12:26:16,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cf01ea03/21142a48ff704f1fa301482614302659/FLAG3dd3979c9 [2020-09-21 12:26:17,014 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5cf01ea03/21142a48ff704f1fa301482614302659 [2020-09-21 12:26:17,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:26:17,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:26:17,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:26:17,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:26:17,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:26:17,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,054 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c31b5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17, skipping insertion in model container [2020-09-21 12:26:17,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:26:17,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:26:17,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:26:17,358 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:26:17,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:26:17,502 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:26:17,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17 WrapperNode [2020-09-21 12:26:17,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:26:17,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:26:17,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:26:17,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:26:17,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (1/1) ... [2020-09-21 12:26:17,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:26:17,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:26:17,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:26:17,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:26:17,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (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 [2020-09-21 12:26:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:26:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:26:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-21 12:26:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-21 12:26:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-21 12:26:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_find_same_bus_num [2020-09-21 12:26:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure fillslotinfo [2020-09-21 12:26:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmphp_init_devno [2020-09-21 12:26:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ebda_rsrc_controller [2020-09-21 12:26:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:26:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-21 12:26:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:26:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:26:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-21 12:26:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-21 12:26:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_find_same_bus_num [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure fillslotinfo [2020-09-21 12:26:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure ibmphp_init_devno [2020-09-21 12:26:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure ebda_rsrc_controller [2020-09-21 12:26:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:26:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:26:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:26:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:26:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:26:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:26:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:26:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:26:18,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:26:18,073 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:26:18,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:26:18 BoogieIcfgContainer [2020-09-21 12:26:18,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:26:18,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:26:18,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:26:18,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:26:18,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:26:17" (1/3) ... [2020-09-21 12:26:18,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55dea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:26:18, skipping insertion in model container [2020-09-21 12:26:18,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:26:17" (2/3) ... [2020-09-21 12:26:18,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55dea69e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:26:18, skipping insertion in model container [2020-09-21 12:26:18,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:26:18" (3/3) ... [2020-09-21 12:26:18,088 INFO L109 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast_2.i [2020-09-21 12:26:18,100 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:26:18,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:26:18,133 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:26:18,160 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:26:18,161 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:26:18,161 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:26:18,161 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:26:18,161 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:26:18,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:26:18,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:26:18,161 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:26:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-09-21 12:26:18,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:26:18,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:26:18,194 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] [2020-09-21 12:26:18,195 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:26:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:26:18,202 INFO L82 PathProgramCache]: Analyzing trace with hash 502124135, now seen corresponding path program 1 times [2020-09-21 12:26:18,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:26:18,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071205179] [2020-09-21 12:26:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:26:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:18,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:18,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:19,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:26:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:26:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:26:19,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:19,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:26:19,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:26:19,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:26:19,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:26:19,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:26:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:19,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:19,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:19,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:19,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:19,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:26:19,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:19,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:19,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:19,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:26:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:19,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:19,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:19,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-21 12:26:19,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:19,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-21 12:26:19,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:26:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:26:19,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:26:19,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:19,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:19,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:19,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:19,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:26:19,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:19,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 12:26:19,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:19,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:26:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:19,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:26:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:19,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:19,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:19,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:19,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:19,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:26:19,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:19,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:26:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:19,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:26:19,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:26:19,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071205179] [2020-09-21 12:26:19,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:26:19,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:26:19,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484246613] [2020-09-21 12:26:19,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:26:19,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:26:19,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:26:19,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:26:19,895 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 10 states. [2020-09-21 12:26:20,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:26:20,350 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2020-09-21 12:26:20,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:26:20,353 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-09-21 12:26:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:26:20,369 INFO L225 Difference]: With dead ends: 81 [2020-09-21 12:26:20,369 INFO L226 Difference]: Without dead ends: 62 [2020-09-21 12:26:20,375 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 [2020-09-21 12:26:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-21 12:26:20,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-09-21 12:26:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-21 12:26:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2020-09-21 12:26:20,448 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 26 [2020-09-21 12:26:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:26:20,451 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2020-09-21 12:26:20,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:26:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2020-09-21 12:26:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-21 12:26:20,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:26:20,454 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] [2020-09-21 12:26:20,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:26:20,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:26:20,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:26:20,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1817820821, now seen corresponding path program 1 times [2020-09-21 12:26:20,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:26:20,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413377194] [2020-09-21 12:26:20,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:26:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:20,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 12:26:21,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:26:21,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-21 12:26:21,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:26:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 12:26:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:26:21,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:26:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:21,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:26:21,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:21,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:21,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:21,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:26:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:26:21,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-09-21 12:26:21,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:26:21,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:26:21,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:26:21,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:26:21,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:26:21,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:21,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:26:21,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:21,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:21,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:26:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:26:21,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-21 12:26:21,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:26:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:21,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:26:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:21,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:21,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:21,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:21,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:26:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:26:21,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:26:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:21,743 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-21 12:26:21,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413377194] [2020-09-21 12:26:21,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:26:21,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 12:26:21,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630694184] [2020-09-21 12:26:21,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:26:21,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:26:21,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:26:21,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:26:21,748 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand 10 states. [2020-09-21 12:26:22,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:26:22,396 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2020-09-21 12:26:22,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:26:22,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-09-21 12:26:22,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:26:22,399 INFO L225 Difference]: With dead ends: 79 [2020-09-21 12:26:22,400 INFO L226 Difference]: Without dead ends: 70 [2020-09-21 12:26:22,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2020-09-21 12:26:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-21 12:26:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-09-21 12:26:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-21 12:26:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-09-21 12:26:22,417 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-09-21 12:26:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:26:22,417 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-09-21 12:26:22,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:26:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-09-21 12:26:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:26:22,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:26:22,420 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] [2020-09-21 12:26:22,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:26:22,420 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:26:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:26:22,421 INFO L82 PathProgramCache]: Analyzing trace with hash -759518161, now seen corresponding path program 1 times [2020-09-21 12:26:22,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:26:22,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181755248] [2020-09-21 12:26:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:26:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:22,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:22,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:22,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 12:26:22,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:22,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-21 12:26:22,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:26:22,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-21 12:26:22,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 12:26:22,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:26:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:22,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:22,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:22,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:22,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:26:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:22,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:22,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:22,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:26:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:22,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:22,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:26:22,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:22,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-21 12:26:22,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:26:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:22,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-21 12:26:22,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:22,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:22,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:26:23,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:26:23,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:23,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:23,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:23,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:23,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:26:23,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:23,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:23,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:23,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:26:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:26:23,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:26:23,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:23,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:26:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:26:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:23,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:26:23,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:26:23,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:23,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:23,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:26:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:23,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:26:23,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:26:23,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:26:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:26:23,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:23,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-09-21 12:26:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:26:23,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:26:23,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:26:23,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:26:23,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:26:23,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:26:23,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:26:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:26:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:26:23,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:26:23,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:26:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:26:23,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181755248] [2020-09-21 12:26:23,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:26:23,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:26:23,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726991880] [2020-09-21 12:26:23,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:26:23,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:26:23,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:26:23,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:26:23,142 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 8 states. [2020-09-21 12:26:23,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:26:23,619 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2020-09-21 12:26:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 12:26:23,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-21 12:26:23,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:26:23,623 INFO L225 Difference]: With dead ends: 80 [2020-09-21 12:26:23,625 INFO L226 Difference]: Without dead ends: 68 [2020-09-21 12:26:23,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:26:23,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-21 12:26:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-09-21 12:26:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-21 12:26:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-09-21 12:26:23,652 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 51 [2020-09-21 12:26:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:26:23,652 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-09-21 12:26:23,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:26:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-09-21 12:26:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 12:26:23,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:26:23,658 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] [2020-09-21 12:26:23,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:26:23,660 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:26:23,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:26:23,660 INFO L82 PathProgramCache]: Analyzing trace with hash -501352723, now seen corresponding path program 1 times [2020-09-21 12:26:23,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:26:23,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693794017] [2020-09-21 12:26:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:26:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:26:23,706 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:26:23,706 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:26:23,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:26:23,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:26:23 BoogieIcfgContainer [2020-09-21 12:26:23,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:26:23,753 INFO L168 Benchmark]: Toolchain (without parser) took 6721.03 ms. Allocated memory was 141.0 MB in the beginning and 277.9 MB in the end (delta: 136.8 MB). Free memory was 104.5 MB in the beginning and 155.0 MB in the end (delta: -50.5 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:26:23,755 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:26:23,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.92 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 182.4 MB in the end (delta: -78.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-21 12:26:23,759 INFO L168 Benchmark]: Boogie Preprocessor took 50.18 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:26:23,766 INFO L168 Benchmark]: RCFGBuilder took 524.88 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 156.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:26:23,767 INFO L168 Benchmark]: TraceAbstraction took 5669.47 ms. Allocated memory was 204.5 MB in the beginning and 277.9 MB in the end (delta: 73.4 MB). Free memory was 155.9 MB in the beginning and 155.0 MB in the end (delta: 870.2 kB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:26:23,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 462.92 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 182.4 MB in the end (delta: -78.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.18 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 180.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.88 ms. Allocated memory is still 204.5 MB. Free memory was 180.4 MB in the beginning and 156.5 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5669.47 ms. Allocated memory was 204.5 MB in the beginning and 277.9 MB in the end (delta: 73.4 MB). Free memory was 155.9 MB in the beginning and 155.0 MB in the end (delta: 870.2 kB). Peak memory consumption was 74.3 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: 5.5s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 206 SDslu, 436 SDs, 0 SdLazy, 521 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s 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, 3.4s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 15719 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...