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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/systemc/bist_cell.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:31:23,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:31:23,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:31:23,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:31:23,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:31:23,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:31:23,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:31:23,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:31:23,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:31:23,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:31:23,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:31:23,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:31:23,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:31:23,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:31:23,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:31:23,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:31:23,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:31:23,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:31:23,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:31:23,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:31:23,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:31:23,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:31:23,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:31:23,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:31:23,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:31:23,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:31:23,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:31:23,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:31:23,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:31:23,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:31:23,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:31:23,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:31:23,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:31:23,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:31:23,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:31:23,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:31:23,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:31:23,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:31:23,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:31:23,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:31:23,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:31:23,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:31:23,878 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:31:23,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:31:23,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:31:23,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:31:23,880 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:31:23,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:31:23,881 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:31:23,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:31:23,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:31:23,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:31:23,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:31:23,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:31:23,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:31:23,883 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:31:23,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:31:23,884 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:31:23,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:31:23,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:31:23,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:31:23,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:31:23,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:31:23,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:31:23,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:31:23,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:31:23,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:31:23,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:31:23,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:31:23,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:31:23,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:31:24,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:31:24,164 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:31:24,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:31:24,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:31:24,169 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:31:24,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/bist_cell.cil.c [2019-10-15 03:31:24,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8805b0703/2bc57671c9f94a5e91dea5213665c4e2/FLAG14c79a8ab [2019-10-15 03:31:24,698 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:31:24,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/bist_cell.cil.c [2019-10-15 03:31:24,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8805b0703/2bc57671c9f94a5e91dea5213665c4e2/FLAG14c79a8ab [2019-10-15 03:31:25,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8805b0703/2bc57671c9f94a5e91dea5213665c4e2 [2019-10-15 03:31:25,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:31:25,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:31:25,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:31:25,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:31:25,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:31:25,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db268e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25, skipping insertion in model container [2019-10-15 03:31:25,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,083 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:31:25,114 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:31:25,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:31:25,351 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:31:25,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:31:25,494 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:31:25,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25 WrapperNode [2019-10-15 03:31:25,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:31:25,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:31:25,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:31:25,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:31:25,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... [2019-10-15 03:31:25,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:31:25,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:31:25,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:31:25,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:31:25,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:31:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:31:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:31:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-15 03:31:25,591 INFO L138 BoogieDeclarations]: Found implementation of procedure method1 [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure is_method1_triggered [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure update_b0 [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure update_b1 [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure update_d0 [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure update_d1 [2019-10-15 03:31:25,592 INFO L138 BoogieDeclarations]: Found implementation of procedure update_z [2019-10-15 03:31:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-15 03:31:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-15 03:31:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-15 03:31:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-15 03:31:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-15 03:31:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure method1 [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_method1_triggered [2019-10-15 03:31:25,595 INFO L130 BoogieDeclarations]: Found specification of procedure update_b0 [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_b1 [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_d0 [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_d1 [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_z [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-15 03:31:25,596 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-15 03:31:25,597 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-15 03:31:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-15 03:31:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-15 03:31:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:31:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:31:25,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:31:26,479 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:31:26,480 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-15 03:31:26,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:26 BoogieIcfgContainer [2019-10-15 03:31:26,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:31:26,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:31:26,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:31:26,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:31:26,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:31:25" (1/3) ... [2019-10-15 03:31:26,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56de934d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:31:26, skipping insertion in model container [2019-10-15 03:31:26,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:31:25" (2/3) ... [2019-10-15 03:31:26,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56de934d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:31:26, skipping insertion in model container [2019-10-15 03:31:26,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:31:26" (3/3) ... [2019-10-15 03:31:26,490 INFO L109 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2019-10-15 03:31:26,499 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:31:26,508 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:31:26,519 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:31:26,544 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:31:26,545 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:31:26,545 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:31:26,545 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:31:26,545 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:31:26,546 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:31:26,546 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:31:26,546 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:31:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2019-10-15 03:31:26,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-15 03:31:26,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:26,573 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:31:26,575 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash -889315788, now seen corresponding path program 1 times [2019-10-15 03:31:26,592 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:26,592 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948037844] [2019-10-15 03:31:26,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:26,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:26,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:26,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:31:26,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948037844] [2019-10-15 03:31:26,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:31:26,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:31:26,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666813544] [2019-10-15 03:31:26,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:31:26,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:31:26,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:31:26,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:31:26,930 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2019-10-15 03:31:26,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:31:26,960 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2019-10-15 03:31:26,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:31:26,961 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 40 [2019-10-15 03:31:26,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:31:26,972 INFO L225 Difference]: With dead ends: 160 [2019-10-15 03:31:26,972 INFO L226 Difference]: Without dead ends: 84 [2019-10-15 03:31:26,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:31:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-10-15 03:31:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-10-15 03:31:27,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-10-15 03:31:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 97 transitions. [2019-10-15 03:31:27,025 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 97 transitions. Word has length 40 [2019-10-15 03:31:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:31:27,027 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 97 transitions. [2019-10-15 03:31:27,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:31:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 97 transitions. [2019-10-15 03:31:27,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 03:31:27,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:31:27,032 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:31:27,033 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:31:27,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:31:27,033 INFO L82 PathProgramCache]: Analyzing trace with hash 68965705, now seen corresponding path program 1 times [2019-10-15 03:31:27,033 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:31:27,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878791143] [2019-10-15 03:31:27,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:27,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:31:27,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:31:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:31:27,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878791143] [2019-10-15 03:31:27,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305957132] [2019-10-15 03:31:27,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:31:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:31:27,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:31:27,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:31:27,698 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:31:27,698 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:31:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:31:27,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2129548166] [2019-10-15 03:31:27,951 INFO L162 IcfgInterpreter]: Started Sifa with 64 locations of interest [2019-10-15 03:31:27,951 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:31:27,958 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:31:27,967 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:31:27,968 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:31:28,453 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 67 for LOIs [2019-10-15 03:31:28,511 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 114 for LOIs [2019-10-15 03:31:31,497 INFO L199 IcfgInterpreter]: Interpreting procedure init_model with input of size 90 for LOIs [2019-10-15 03:31:31,714 INFO L199 IcfgInterpreter]: Interpreting procedure error with input of size 41 for LOIs [2019-10-15 03:31:31,738 INFO L199 IcfgInterpreter]: Interpreting procedure start_simulation with input of size 114 for LOIs [2019-10-15 03:31:51,912 INFO L199 IcfgInterpreter]: Interpreting procedure fire_delta_events with input of size 63 for LOIs [2019-10-15 03:31:51,994 INFO L199 IcfgInterpreter]: Interpreting procedure update_channels with input of size 100 for LOIs [2019-10-15 03:31:52,206 INFO L199 IcfgInterpreter]: Interpreting procedure eval with input of size 34 for LOIs [2019-10-15 03:31:52,363 INFO L199 IcfgInterpreter]: Interpreting procedure stop_simulation with input of size 38 for LOIs [2019-10-15 03:31:52,414 INFO L199 IcfgInterpreter]: Interpreting procedure init_threads with input of size 46 for LOIs [2019-10-15 03:31:52,430 INFO L199 IcfgInterpreter]: Interpreting procedure reset_delta_events with input of size 59 for LOIs [2019-10-15 03:31:52,527 INFO L199 IcfgInterpreter]: Interpreting procedure exists_runnable_thread with input of size 44 for LOIs [2019-10-15 03:31:52,543 INFO L199 IcfgInterpreter]: Interpreting procedure activate_threads with input of size 50 for LOIs [2019-10-15 03:31:52,605 INFO L199 IcfgInterpreter]: Interpreting procedure is_method1_triggered with input of size 48 for LOIs [2019-10-15 03:31:52,622 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:31:53,128 WARN L191 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 54 [2019-10-15 03:31:54,078 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 108 [2019-10-15 03:31:54,877 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 103 [2019-10-15 03:31:55,639 WARN L191 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 102 [2019-10-15 03:31:56,471 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 107 [2019-10-15 03:31:57,198 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 99 [2019-10-15 03:31:57,942 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 101 [2019-10-15 03:31:58,156 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 59 [2019-10-15 03:31:58,382 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 60 [2019-10-15 03:31:58,613 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2019-10-15 03:31:58,852 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2019-10-15 03:31:59,090 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2019-10-15 03:31:59,379 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2019-10-15 03:31:59,795 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2019-10-15 03:32:00,091 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2019-10-15 03:32:00,468 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 61 [2019-10-15 03:32:00,723 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-10-15 03:32:00,981 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-10-15 03:32:01,444 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-10-15 03:32:01,862 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2019-10-15 03:32:02,102 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-10-15 03:32:02,463 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 58 [2019-10-15 03:32:02,757 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-10-15 03:32:03,212 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32