/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/systemc/bist_cell.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:14:07,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:14:07,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:14:07,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:14:07,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:14:07,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:14:07,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:14:07,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:14:07,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:14:07,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:14:07,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:14:07,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:14:07,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:14:07,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:14:07,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:14:07,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:14:07,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:14:07,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:14:07,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:14:07,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:14:07,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:14:07,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:14:07,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:14:07,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:14:07,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:14:07,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:14:07,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:14:07,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:14:07,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:14:07,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:14:07,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:14:07,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:14:07,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:14:07,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:14:07,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:14:07,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:14:07,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:14:07,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:14:07,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:14:07,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:14:07,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:14:07,500 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 [2019-11-07 01:14:07,520 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:14:07,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:14:07,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:14:07,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:14:07,526 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:14:07,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:14:07,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:14:07,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:14:07,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:14:07,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:14:07,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:14:07,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:14:07,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:14:07,528 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:14:07,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:14:07,528 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:14:07,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:14:07,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:14:07,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:14:07,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:14:07,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:14:07,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:14:07,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:14:07,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:14:07,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:14:07,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:14:07,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:14:07,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:14:07,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 01:14:07,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:14:07,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:14:07,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:14:07,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:14:07,852 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:14:07,853 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/bist_cell.cil.c [2019-11-07 01:14:07,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2273364c/bce77e9614314758b2979b190b76205d/FLAG467721741 [2019-11-07 01:14:08,382 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:14:08,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/bist_cell.cil.c [2019-11-07 01:14:08,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2273364c/bce77e9614314758b2979b190b76205d/FLAG467721741 [2019-11-07 01:14:08,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2273364c/bce77e9614314758b2979b190b76205d [2019-11-07 01:14:08,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:14:08,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:14:08,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:14:08,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:14:08,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:14:08,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:14:08" (1/1) ... [2019-11-07 01:14:08,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bae4704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:08, skipping insertion in model container [2019-11-07 01:14:08,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:14:08" (1/1) ... [2019-11-07 01:14:08,844 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:14:08,957 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:14:09,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:14:09,330 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:14:09,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:14:09,490 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:14:09,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09 WrapperNode [2019-11-07 01:14:09,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:14:09,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:14:09,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:14:09,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:14:09,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (1/1) ... [2019-11-07 01:14:09,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:14:09,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:14:09,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:14:09,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:14:09,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (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 [2019-11-07 01:14:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:14:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:14:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-11-07 01:14:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure method1 [2019-11-07 01:14:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure is_method1_triggered [2019-11-07 01:14:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure update_b0 [2019-11-07 01:14:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure update_b1 [2019-11-07 01:14:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure update_d0 [2019-11-07 01:14:09,608 INFO L138 BoogieDeclarations]: Found implementation of procedure update_d1 [2019-11-07 01:14:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure update_z [2019-11-07 01:14:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-11-07 01:14:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-11-07 01:14:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-11-07 01:14:09,609 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-11-07 01:14:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-11-07 01:14:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-11-07 01:14:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-11-07 01:14:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-11-07 01:14:09,610 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-11-07 01:14:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-11-07 01:14:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:14:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:14:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:14:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-11-07 01:14:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure method1 [2019-11-07 01:14:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure is_method1_triggered [2019-11-07 01:14:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure update_b0 [2019-11-07 01:14:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure update_b1 [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure update_d0 [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure update_d1 [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure update_z [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-11-07 01:14:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-11-07 01:14:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-11-07 01:14:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-11-07 01:14:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-11-07 01:14:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-11-07 01:14:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-11-07 01:14:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-11-07 01:14:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-11-07 01:14:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:14:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:14:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:14:10,178 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:14:10,179 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-11-07 01:14:10,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:14:10 BoogieIcfgContainer [2019-11-07 01:14:10,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:14:10,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:14:10,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:14:10,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:14:10,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:14:08" (1/3) ... [2019-11-07 01:14:10,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ffa6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:14:10, skipping insertion in model container [2019-11-07 01:14:10,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:14:09" (2/3) ... [2019-11-07 01:14:10,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ffa6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:14:10, skipping insertion in model container [2019-11-07 01:14:10,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:14:10" (3/3) ... [2019-11-07 01:14:10,189 INFO L109 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2019-11-07 01:14:10,197 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:14:10,205 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:14:10,213 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:14:10,239 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:14:10,239 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:14:10,239 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:14:10,239 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:14:10,239 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:14:10,240 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:14:10,240 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:14:10,240 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:14:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-11-07 01:14:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-07 01:14:10,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:14:10,274 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:14:10,276 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:14:10,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:14:10,282 INFO L82 PathProgramCache]: Analyzing trace with hash -778963544, now seen corresponding path program 1 times [2019-11-07 01:14:10,292 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:14:10,293 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950142083] [2019-11-07 01:14:10,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:14:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:14:10,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:14:10,652 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950142083] [2019-11-07 01:14:10,653 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:14:10,654 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 01:14:10,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238086839] [2019-11-07 01:14:10,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:14:10,663 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:14:10,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:14:10,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:14:10,682 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 4 states. [2019-11-07 01:14:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:14:10,926 INFO L93 Difference]: Finished difference Result 265 states and 367 transitions. [2019-11-07 01:14:10,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:14:10,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2019-11-07 01:14:10,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:14:10,943 INFO L225 Difference]: With dead ends: 265 [2019-11-07 01:14:10,943 INFO L226 Difference]: Without dead ends: 134 [2019-11-07 01:14:10,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 01:14:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-07 01:14:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-11-07 01:14:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-07 01:14:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 179 transitions. [2019-11-07 01:14:11,017 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 179 transitions. Word has length 58 [2019-11-07 01:14:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:14:11,019 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 179 transitions. [2019-11-07 01:14:11,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:14:11,020 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 179 transitions. [2019-11-07 01:14:11,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 01:14:11,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:14:11,027 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:14:11,028 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:14:11,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:14:11,028 INFO L82 PathProgramCache]: Analyzing trace with hash -820467770, now seen corresponding path program 1 times [2019-11-07 01:14:11,029 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:14:11,029 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937801417] [2019-11-07 01:14:11,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:14:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:14:11,263 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 01:14:11,264 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937801417] [2019-11-07 01:14:11,264 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325237267] [2019-11-07 01:14:11,265 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 [2019-11-07 01:14:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:14:11,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 01:14:11,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:14:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 01:14:11,559 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:14:11,846 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:14:11,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:14:11,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 01:14:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-11-07 01:14:11,937 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [522283658] [2019-11-07 01:14:11,944 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 126 [2019-11-07 01:14:11,986 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-11-07 01:14:11,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 01:14:12,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-11-07 01:14:12,087 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Performed 158 root evaluator evaluations with a maximum evaluation depth of 3. Performed 158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 47 variables. [2019-11-07 01:14:12,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:14:12,092 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-11-07 01:14:12,177 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 86.41% of their original sizes. [2019-11-07 01:14:12,178 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-11-07 01:14:12,197 INFO L553 sIntCurrentIteration]: We unified 124 AI predicates to 124 [2019-11-07 01:14:12,197 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-11-07 01:14:12,200 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 01:14:12,202 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5] total 11 [2019-11-07 01:14:12,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376385355] [2019-11-07 01:14:12,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:14:12,205 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 01:14:12,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 01:14:12,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-07 01:14:12,206 INFO L87 Difference]: Start difference. First operand 134 states and 179 transitions. Second operand 3 states. [2019-11-07 01:14:12,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 01:14:12,416 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:14:12,418 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 692#true or 1594#(and (= ~z_val~0 0) (= ~d1_ev~0 2) (= ~b1_ev~0 2) (= ~b0_ev~0 2) (= ~b1_req_up~0 1) (= ~z_req_up~0 0) (= ~z_ev~0 2) (= ~comp_m1_i~0 0) (= ~d0_ev~0 2) (= ~d0_req_up~0 1) (= ~d1_req_up~0 1) (= ~b0_req_up~0 1)) ([#1{~z_val~0 = [0;0]; ~d1_req_up~0 = [1;1]; ~d0_req_up~0 = [1;1]; ~z_req_up~0 = [0;0]; ~d1_ev~0 = [2;2]; ~b0_req_up~0 = [1;1]; ~z_ev~0 = [2;2]; ~b1_req_up~0 = [1;1]; ~b1_ev~0 = [2;2]; ~b0_ev~0 = [2;2]; ~d0_ev~0 = [2;2]; ~comp_m1_i~0 = [0;0]; }]) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1089) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:969) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:698) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:627) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:454) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 01:14:12,424 INFO L168 Benchmark]: Toolchain (without parser) took 3623.00 ms. Allocated memory was 143.7 MB in the beginning and 250.1 MB in the end (delta: 106.4 MB). Free memory was 101.3 MB in the beginning and 173.5 MB in the end (delta: -72.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,425 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.84 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 179.2 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,427 INFO L168 Benchmark]: Boogie Preprocessor took 54.80 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 177.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,428 INFO L168 Benchmark]: RCFGBuilder took 634.13 ms. Allocated memory is still 201.3 MB. Free memory was 177.1 MB in the beginning and 144.2 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,429 INFO L168 Benchmark]: TraceAbstraction took 2239.26 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 143.5 MB in the beginning and 173.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-11-07 01:14:12,433 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.84 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 179.2 MB in the end (delta: -78.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.80 ms. Allocated memory is still 201.3 MB. Free memory was 179.2 MB in the beginning and 177.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 634.13 ms. Allocated memory is still 201.3 MB. Free memory was 177.1 MB in the beginning and 144.2 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2239.26 ms. Allocated memory was 201.3 MB in the beginning and 250.1 MB in the end (delta: 48.8 MB). Free memory was 143.5 MB in the beginning and 173.5 MB in the end (delta: -30.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 692#true or 1594#(and (= ~z_val~0 0) (= ~d1_ev~0 2) (= ~b1_ev~0 2) (= ~b0_ev~0 2) (= ~b1_req_up~0 1) (= ~z_req_up~0 0) (= ~z_ev~0 2) (= ~comp_m1_i~0 0) (= ~d0_ev~0 2) (= ~d0_req_up~0 1) (= ~d1_req_up~0 1) (= ~b0_req_up~0 1)) ([#1{~z_val~0 = [0;0]; ~d1_req_up~0 = [1;1]; ~d0_req_up~0 = [1;1]; ~z_req_up~0 = [0;0]; ~d1_ev~0 = [2;2]; ~b0_req_up~0 = [1;1]; ~z_ev~0 = [2;2]; ~b1_req_up~0 = [1;1]; ~b1_ev~0 = [2;2]; ~b0_ev~0 = [2;2]; ~d0_ev~0 = [2;2]; ~comp_m1_i~0 = [0;0]; }]) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 692#true or 1594#(and (= ~z_val~0 0) (= ~d1_ev~0 2) (= ~b1_ev~0 2) (= ~b0_ev~0 2) (= ~b1_req_up~0 1) (= ~z_req_up~0 0) (= ~z_ev~0 2) (= ~comp_m1_i~0 0) (= ~d0_ev~0 2) (= ~d0_req_up~0 1) (= ~d1_req_up~0 1) (= ~b0_req_up~0 1)) ([#1{~z_val~0 = [0;0]; ~d1_req_up~0 = [1;1]; ~d0_req_up~0 = [1;1]; ~z_req_up~0 = [0;0]; ~d1_ev~0 = [2;2]; ~b0_req_up~0 = [1;1]; ~z_ev~0 = [2;2]; ~b1_req_up~0 = [1;1]; ~b1_ev~0 = [2;2]; ~b0_ev~0 = [2;2]; ~d0_ev~0 = [2;2]; ~comp_m1_i~0 = [0;0]; }]): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...