/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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:15:50,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:15:50,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:15:50,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:15:50,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:15:50,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:15:50,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:15:50,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:15:50,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:15:50,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:15:50,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:15:50,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:15:50,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:15:50,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:15:50,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:15:50,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:15:50,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:15:50,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:15:50,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:15:50,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:15:50,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:15:50,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:15:50,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:15:50,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:15:50,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:15:50,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:15:50,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:15:50,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:15:50,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:15:50,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:15:50,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:15:50,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:15:50,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:15:50,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:15:50,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:15:50,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:15:50,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:15:50,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:15:50,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:15:50,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:15:50,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:15:50,471 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 [2020-10-14 23:15:50,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:15:50,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:15:50,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:15:50,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:15:50,519 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:15:50,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:15:50,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:15:50,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:15:50,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:15:50,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:15:50,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:15:50,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:15:50,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:15:50,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:15:50,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:15:50,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:15:50,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:15:50,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:15:50,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:15:50,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:15:50,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:15:50,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:15:50,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:15:50,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:15:50,526 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.rcfgbuilder: Size of a code block -> SequenceOfStatements 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 23:15:50,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:15:50,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:15:50,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:15:50,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:15:50,916 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:15:50,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-14 23:15:50,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d447313c/7a0a8162cc3d4e259504d5ed2fa10dd1/FLAG1eeff98a7 [2020-10-14 23:15:51,414 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:15:51,415 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_3.c [2020-10-14 23:15:51,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d447313c/7a0a8162cc3d4e259504d5ed2fa10dd1/FLAG1eeff98a7 [2020-10-14 23:15:51,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d447313c/7a0a8162cc3d4e259504d5ed2fa10dd1 [2020-10-14 23:15:51,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:15:51,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:15:51,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:15:51,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:15:51,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:15:51,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:51" (1/1) ... [2020-10-14 23:15:51,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc3fb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:51, skipping insertion in model container [2020-10-14 23:15:51,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:15:51" (1/1) ... [2020-10-14 23:15:51,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:15:51,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:15:52,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:15:52,043 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:15:52,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:15:52,076 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:15:52,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52 WrapperNode [2020-10-14 23:15:52,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:15:52,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:15:52,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:15:52,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:15:52,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (1/1) ... [2020-10-14 23:15:52,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:15:52,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:15:52,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:15:52,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:15:52,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (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 [2020-10-14 23:15:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:15:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:15:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 23:15:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 23:15:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-10-14 23:15:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-14 23:15:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:15:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:15:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-14 23:15:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:15:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:15:52,499 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:15:52,500 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 23:15:52,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:52 BoogieIcfgContainer [2020-10-14 23:15:52,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:15:52,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:15:52,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:15:52,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:15:52,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:15:51" (1/3) ... [2020-10-14 23:15:52,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b34b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:52, skipping insertion in model container [2020-10-14 23:15:52,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:15:52" (2/3) ... [2020-10-14 23:15:52,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b34b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:15:52, skipping insertion in model container [2020-10-14 23:15:52,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:15:52" (3/3) ... [2020-10-14 23:15:52,516 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_3.c [2020-10-14 23:15:52,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:15:52,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:15:52,554 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:15:52,579 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:15:52,579 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:15:52,579 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:15:52,579 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:15:52,579 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:15:52,580 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:15:52,580 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:15:52,580 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:15:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-10-14 23:15:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 23:15:52,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:15:52,608 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:15:52,609 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:15:52,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:15:52,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2140746675, now seen corresponding path program 1 times [2020-10-14 23:15:52,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:15:52,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169065804] [2020-10-14 23:15:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:15:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 23:15:52,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 23:15:52,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 23:15:52,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:15:52,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:15:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:15:52,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 23:15:52,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:52,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:52,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:15:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:52,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:15:52,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:52,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 23:15:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:52,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:15:52,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:15:52,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:15:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:52,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:15:52,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:52,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:52,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:15:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:52,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:52,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 23:15:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:52,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:52,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:15:52,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169065804] [2020-10-14 23:15:52,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:15:52,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-14 23:15:52,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589869650] [2020-10-14 23:15:52,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-14 23:15:52,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:15:52,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-14 23:15:52,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-14 23:15:52,987 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-10-14 23:15:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:15:53,013 INFO L93 Difference]: Finished difference Result 81 states and 97 transitions. [2020-10-14 23:15:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-14 23:15:53,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2020-10-14 23:15:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:15:53,024 INFO L225 Difference]: With dead ends: 81 [2020-10-14 23:15:53,024 INFO L226 Difference]: Without dead ends: 40 [2020-10-14 23:15:53,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-14 23:15:53,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-14 23:15:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-14 23:15:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-14 23:15:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2020-10-14 23:15:53,071 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 31 [2020-10-14 23:15:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:15:53,073 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2020-10-14 23:15:53,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-14 23:15:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2020-10-14 23:15:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 23:15:53,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:15:53,076 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 23:15:53,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:15:53,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:15:53,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:15:53,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1711309410, now seen corresponding path program 1 times [2020-10-14 23:15:53,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:15:53,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072605840] [2020-10-14 23:15:53,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:15:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 23:15:53,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 23:15:53,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:15:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 23:15:53,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:15:53,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:15:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:15:53,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:15:53,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:15:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:15:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 23:15:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:15:53,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 23:15:53,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:15:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:15:53,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 23:15:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:15:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 23:15:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 23:15:53,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072605840] [2020-10-14 23:15:53,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:15:53,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 23:15:53,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042846787] [2020-10-14 23:15:53,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 23:15:53,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:15:53,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 23:15:53,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 23:15:53,264 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states. [2020-10-14 23:15:53,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:15:53,313 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-10-14 23:15:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 23:15:53,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-10-14 23:15:53,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:15:53,315 INFO L225 Difference]: With dead ends: 57 [2020-10-14 23:15:53,315 INFO L226 Difference]: Without dead ends: 51 [2020-10-14 23:15:53,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 23:15:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-14 23:15:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2020-10-14 23:15:53,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 23:15:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2020-10-14 23:15:53,329 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 31 [2020-10-14 23:15:53,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:15:53,330 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2020-10-14 23:15:53,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 23:15:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2020-10-14 23:15:53,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 23:15:53,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:15:53,332 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-10-14 23:15:53,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:15:53,333 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:15:53,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:15:53,333 INFO L82 PathProgramCache]: Analyzing trace with hash -612347458, now seen corresponding path program 1 times [2020-10-14 23:15:53,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:15:53,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434784251] [2020-10-14 23:15:53,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:15:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 23:15:53,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 23:15:53,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-14 23:15:53,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 23:15:53,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:15:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:15:53,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:15:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 23:15:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:15:53,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 23:15:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 23:15:53,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:15:53,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-14 23:15:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 23:15:53,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-14 23:15:53,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 23:15:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:15:53,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:15:53,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:15:53,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 23:15:53,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:15:53,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 23:15:53,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:15:53,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:15:53,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:15:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:15:53,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:15:53,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 23:15:53,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-14 23:15:53,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 23:15:53,641 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) 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:317) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 30 more [2020-10-14 23:15:53,649 INFO L168 Benchmark]: Toolchain (without parser) took 1807.38 ms. Allocated memory was 146.8 MB in the beginning and 234.9 MB in the end (delta: 88.1 MB). Free memory was 103.0 MB in the beginning and 202.9 MB in the end (delta: -99.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 23:15:53,652 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 23:15:53,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.40 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 92.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-10-14 23:15:53,654 INFO L168 Benchmark]: Boogie Preprocessor took 115.10 ms. Allocated memory was 146.8 MB in the beginning and 201.9 MB in the end (delta: 55.1 MB). Free memory was 92.7 MB in the beginning and 179.6 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-10-14 23:15:53,656 INFO L168 Benchmark]: RCFGBuilder took 313.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:15:53,658 INFO L168 Benchmark]: TraceAbstraction took 1137.18 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 163.2 MB in the beginning and 202.9 MB in the end (delta: -39.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-14 23:15:53,669 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 236.40 ms. Allocated memory is still 146.8 MB. Free memory was 103.0 MB in the beginning and 92.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.10 ms. Allocated memory was 146.8 MB in the beginning and 201.9 MB in the end (delta: 55.1 MB). Free memory was 92.7 MB in the beginning and 179.6 MB in the end (delta: -86.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 313.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 164.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1137.18 ms. Allocated memory was 201.9 MB in the beginning and 234.9 MB in the end (delta: 33.0 MB). Free memory was 163.2 MB in the beginning and 202.9 MB in the end (delta: -39.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...