/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/ldv-regression/test_cut_trace.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 23:30:03,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 23:30:03,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 23:30:03,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 23:30:03,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 23:30:03,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 23:30:03,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 23:30:03,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 23:30:03,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 23:30:03,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 23:30:03,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 23:30:03,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 23:30:03,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 23:30:03,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 23:30:03,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 23:30:03,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 23:30:03,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 23:30:03,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 23:30:03,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 23:30:03,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 23:30:03,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 23:30:03,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 23:30:03,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 23:30:03,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 23:30:03,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 23:30:03,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 23:30:03,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 23:30:03,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 23:30:03,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 23:30:03,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 23:30:03,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 23:30:03,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 23:30:03,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 23:30:03,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 23:30:03,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 23:30:03,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 23:30:03,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 23:30:03,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 23:30:03,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 23:30:03,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 23:30:03,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 23:30:03,256 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 23:30:03,278 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 23:30:03,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 23:30:03,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 23:30:03,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 23:30:03,279 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 23:30:03,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 23:30:03,280 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 23:30:03,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 23:30:03,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 23:30:03,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 23:30:03,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 23:30:03,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 23:30:03,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 23:30:03,281 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 23:30:03,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 23:30:03,282 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 23:30:03,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 23:30:03,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 23:30:03,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 23:30:03,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 23:30:03,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 23:30:03,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 23:30:03,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 23:30:03,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 23:30:03,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 23:30:03,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 23:30:03,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 23:30:03,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 23:30:03,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 23:30:03,286 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 23:30:03,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 23:30:03,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 23:30:03,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 23:30:03,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 23:30:03,658 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 23:30:03,659 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2020-10-14 23:30:03,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07b1acb04/df1bed5314e643c99af1a28e7aedbb0c/FLAGc797316b4 [2020-10-14 23:30:04,141 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 23:30:04,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_cut_trace.i [2020-10-14 23:30:04,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07b1acb04/df1bed5314e643c99af1a28e7aedbb0c/FLAGc797316b4 [2020-10-14 23:30:04,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/07b1acb04/df1bed5314e643c99af1a28e7aedbb0c [2020-10-14 23:30:04,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 23:30:04,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 23:30:04,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:04,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 23:30:04,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 23:30:04,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656a7a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04, skipping insertion in model container [2020-10-14 23:30:04,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 23:30:04,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 23:30:04,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:04,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 23:30:04,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 23:30:04,799 INFO L208 MainTranslator]: Completed translation [2020-10-14 23:30:04,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04 WrapperNode [2020-10-14 23:30:04,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 23:30:04,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 23:30:04,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 23:30:04,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 23:30:04,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (1/1) ... [2020-10-14 23:30:04,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 23:30:04,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 23:30:04,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 23:30:04,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 23:30:04,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (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 23:30:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 23:30:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 23:30:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-14 23:30:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 23:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 23:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-14 23:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 23:30:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 23:30:04,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 23:30:05,107 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 23:30:05,107 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 23:30:05,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:05 BoogieIcfgContainer [2020-10-14 23:30:05,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 23:30:05,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 23:30:05,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 23:30:05,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 23:30:05,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:30:04" (1/3) ... [2020-10-14 23:30:05,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4839906a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:05, skipping insertion in model container [2020-10-14 23:30:05,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:30:04" (2/3) ... [2020-10-14 23:30:05,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4839906a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:30:05, skipping insertion in model container [2020-10-14 23:30:05,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:30:05" (3/3) ... [2020-10-14 23:30:05,120 INFO L109 eAbstractionObserver]: Analyzing ICFG test_cut_trace.i [2020-10-14 23:30:05,131 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 23:30:05,137 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 23:30:05,151 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 23:30:05,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 23:30:05,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 23:30:05,176 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 23:30:05,176 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 23:30:05,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 23:30:05,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 23:30:05,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 23:30:05,177 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 23:30:05,194 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-14 23:30:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-14 23:30:05,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:05,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:05,200 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:05,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:05,205 INFO L82 PathProgramCache]: Analyzing trace with hash -417355086, now seen corresponding path program 1 times [2020-10-14 23:30:05,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:05,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334235558] [2020-10-14 23:30:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:05,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 23:30:05,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 23:30:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:05,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 23:30:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:30:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 23:30:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 23:30:05,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:05,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:05,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:05,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:05,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:05,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:05,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:05,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:05,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 23:30:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:30:05,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334235558] [2020-10-14 23:30:05,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:05,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 23:30:05,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765764555] [2020-10-14 23:30:05,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 23:30:05,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:05,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 23:30:05,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 23:30:05,416 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-10-14 23:30:05,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:05,454 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-10-14 23:30:05,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 23:30:05,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-14 23:30:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:05,465 INFO L225 Difference]: With dead ends: 29 [2020-10-14 23:30:05,466 INFO L226 Difference]: Without dead ends: 11 [2020-10-14 23:30:05,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 23:30:05,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-14 23:30:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-14 23:30:05,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-14 23:30:05,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-10-14 23:30:05,516 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2020-10-14 23:30:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:05,520 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-10-14 23:30:05,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 23:30:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-10-14 23:30:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-14 23:30:05,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 23:30:05,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 23:30:05,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 23:30:05,526 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 23:30:05,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 23:30:05,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1648524013, now seen corresponding path program 1 times [2020-10-14 23:30:05,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 23:30:05,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495224051] [2020-10-14 23:30:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 23:30:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:05,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:05,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:05,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:05,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 23:30:05,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 23:30:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 23:30:05,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:05,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 23:30:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 23:30:05,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 23:30:05,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 23:30:05,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 23:30:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 23:30:05,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 23:30:05,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 23:30:05,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 23:30:05,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 23:30:05,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 23:30:05,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 23:30:05,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 23:30:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 23:30:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 23:30:05,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 23:30:05,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-14 23:30:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 23:30:05,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495224051] [2020-10-14 23:30:05,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 23:30:05,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 23:30:05,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991898278] [2020-10-14 23:30:05,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 23:30:05,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 23:30:05,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 23:30:05,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 23:30:05,817 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2020-10-14 23:30:05,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 23:30:05,845 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-10-14 23:30:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 23:30:05,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-14 23:30:05,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 23:30:05,846 INFO L225 Difference]: With dead ends: 11 [2020-10-14 23:30:05,846 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 23:30:05,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 23:30:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 23:30:05,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 23:30:05,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 23:30:05,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 23:30:05,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-14 23:30:05,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 23:30:05,849 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 23:30:05,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 23:30:05,850 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 23:30:05,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 23:30:05,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 23:30:05,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 23:30:05,879 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-14 23:30:05,879 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:30:05,879 INFO L268 CegarLoopResult]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-10-14 23:30:05,880 INFO L268 CegarLoopResult]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2020-10-14 23:30:05,880 INFO L268 CegarLoopResult]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2020-10-14 23:30:05,880 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2020-10-14 23:30:05,880 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 23:30:05,880 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 23:30:05,881 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 23:30:05,881 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 23:30:05,881 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2020-10-14 23:30:05,881 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2020-10-14 23:30:05,881 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-14 23:30:05,882 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-14 23:30:05,882 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: false [2020-10-14 23:30:05,882 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-10-14 23:30:05,882 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: false [2020-10-14 23:30:05,882 INFO L268 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-10-14 23:30:05,883 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 20) no Hoare annotation was computed. [2020-10-14 23:30:05,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:30:05 BoogieIcfgContainer [2020-10-14 23:30:05,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 23:30:05,892 INFO L168 Benchmark]: Toolchain (without parser) took 1324.81 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 103.6 MB in the beginning and 129.9 MB in the end (delta: -26.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,893 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.03 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 94.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,895 INFO L168 Benchmark]: Boogie Preprocessor took 113.36 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 181.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,896 INFO L168 Benchmark]: RCFGBuilder took 194.65 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 171.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,897 INFO L168 Benchmark]: TraceAbstraction took 776.65 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 129.9 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. [2020-10-14 23:30:05,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.8 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 232.03 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 94.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.36 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 181.7 MB in the end (delta: -87.4 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 194.65 ms. Allocated memory is still 202.9 MB. Free memory was 181.7 MB in the beginning and 171.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 776.65 ms. Allocated memory is still 202.9 MB. Free memory was 171.2 MB in the beginning and 129.9 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...