/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/loops/trex03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 20:37:32,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:37:32,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:37:32,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:37:32,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:37:32,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:37:32,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:37:32,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:37:32,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:37:32,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:37:32,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:37:32,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:37:32,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:37:32,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:37:32,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:37:32,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:37:32,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:37:32,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:37:32,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:37:32,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:37:32,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:37:32,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:37:32,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:37:32,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:37:32,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:37:32,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:37:32,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:37:32,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:37:32,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:37:32,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:37:32,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:37:32,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:37:32,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:37:32,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:37:32,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:37:32,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:37:32,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:37:32,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:37:32,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:37:32,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:37:32,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:37:32,325 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 [2020-10-27 20:37:32,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:37:32,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:37:32,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:37:32,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:37:32,379 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:37:32,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:37:32,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:37:32,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:37:32,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:37:32,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:37:32,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:37:32,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:37:32,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:37:32,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:37:32,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:37:32,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:37:32,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:37:32,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:37:32,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:37:32,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:37:32,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:37:32,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:37:32,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:37:32,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:37:32,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:37:32,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:37:32,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:37:32,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:37:32,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:37:32,820 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:37:32,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-2.c [2020-10-27 20:37:32,893 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b02f86a0/1c8b55153a6b423bb5398c3657b3d9d7/FLAG140a61235 [2020-10-27 20:37:33,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:37:33,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/trex03-2.c [2020-10-27 20:37:33,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b02f86a0/1c8b55153a6b423bb5398c3657b3d9d7/FLAG140a61235 [2020-10-27 20:37:33,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0b02f86a0/1c8b55153a6b423bb5398c3657b3d9d7 [2020-10-27 20:37:33,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:37:33,873 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:37:33,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:37:33,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:37:33,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:37:33,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:37:33" (1/1) ... [2020-10-27 20:37:33,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6048d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:33, skipping insertion in model container [2020-10-27 20:37:33,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:37:33" (1/1) ... [2020-10-27 20:37:33,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:37:33,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:37:34,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:37:34,138 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:37:34,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:37:34,199 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:37:34,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34 WrapperNode [2020-10-27 20:37:34,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:37:34,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:37:34,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:37:34,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:37:34,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (1/1) ... [2020-10-27 20:37:34,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:37:34,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:37:34,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:37:34,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:37:34,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (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 [2020-10-27 20:37:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:37:34,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:37:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:37:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 20:37:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:37:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:37:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:37:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:37:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:37:34,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 20:37:34,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 20:37:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 20:37:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:37:34,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:37:34,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:37:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:37:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:37:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:37:34,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:37:34,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:37:34,809 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 20:37:34,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:37:34 BoogieIcfgContainer [2020-10-27 20:37:34,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:37:34,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:37:34,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:37:34,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:37:34,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:37:33" (1/3) ... [2020-10-27 20:37:34,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271686ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:37:34, skipping insertion in model container [2020-10-27 20:37:34,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:37:34" (2/3) ... [2020-10-27 20:37:34,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271686ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:37:34, skipping insertion in model container [2020-10-27 20:37:34,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:37:34" (3/3) ... [2020-10-27 20:37:34,820 INFO L111 eAbstractionObserver]: Analyzing ICFG trex03-2.c [2020-10-27 20:37:34,833 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:37:34,838 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:37:34,855 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:37:34,884 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:37:34,884 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:37:34,884 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:37:34,884 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:37:34,885 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:37:34,885 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:37:34,885 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:37:34,885 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:37:34,903 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 20:37:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-27 20:37:34,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:37:34,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:37:34,911 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:37:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:37:34,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1834290772, now seen corresponding path program 1 times [2020-10-27 20:37:34,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:37:34,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111508831] [2020-10-27 20:37:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:37:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:35,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:35,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:35,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 20:37:35,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 20:37:35,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:37:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:37:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:37:35,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:37:35,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:37:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:35,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:35,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:35,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:37:35,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:35,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 20:37:35,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:37:35,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:37:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:37:35,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111508831] [2020-10-27 20:37:35,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:37:35,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 20:37:35,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139237351] [2020-10-27 20:37:35,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-27 20:37:35,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:37:35,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-27 20:37:35,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 20:37:35,531 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2020-10-27 20:37:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:37:35,645 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2020-10-27 20:37:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 20:37:35,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-27 20:37:35,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:37:35,657 INFO L225 Difference]: With dead ends: 39 [2020-10-27 20:37:35,657 INFO L226 Difference]: Without dead ends: 16 [2020-10-27 20:37:35,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-27 20:37:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-27 20:37:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-27 20:37:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-27 20:37:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-27 20:37:35,723 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-27 20:37:35,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:37:35,724 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-27 20:37:35,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-27 20:37:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-27 20:37:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-27 20:37:35,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:37:35,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:37:35,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:37:35,727 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:37:35,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:37:35,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1376224356, now seen corresponding path program 1 times [2020-10-27 20:37:35,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:37:35,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350766660] [2020-10-27 20:37:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:37:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:36,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:36,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-27 20:37:36,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:36,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-27 20:37:36,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:37:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:37:36,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:37:36,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:37:36,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:37:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:37:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:37:36,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:37:36,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:37:36,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:37:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:37:36,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:37:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:37:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:37:36,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:37:36,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:37:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:37:36,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350766660] [2020-10-27 20:37:36,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:37:36,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:37:36,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944625110] [2020-10-27 20:37:36,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:37:36,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:37:36,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:37:36,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:37:36,137 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 6 states. [2020-10-27 20:37:36,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:37:36,393 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-10-27 20:37:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:37:36,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-27 20:37:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:37:36,396 INFO L225 Difference]: With dead ends: 16 [2020-10-27 20:37:36,396 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 20:37:36,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:37:36,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 20:37:36,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 20:37:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 20:37:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 20:37:36,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-27 20:37:36,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:37:36,400 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 20:37:36,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:37:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 20:37:36,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 20:37:36,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:37:36,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 20:37:36,554 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 20:37:36,555 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 20:37:36,555 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 20:37:36,555 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 20:37:36,555 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:37:36,556 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:37:36,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:37:36,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:37:36,556 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 20:37:36,556 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 20:37:36,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:37:36,556 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-27 20:37:36,557 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 14 31) no Hoare annotation was computed. [2020-10-27 20:37:36,557 INFO L274 CegarLoopResult]: For program point L23(lines 23 24) no Hoare annotation was computed. [2020-10-27 20:37:36,557 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 24) no Hoare annotation was computed. [2020-10-27 20:37:36,557 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 14 31) no Hoare annotation was computed. [2020-10-27 20:37:36,558 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-10-27 20:37:36,558 INFO L274 CegarLoopResult]: For program point L22(lines 22 24) no Hoare annotation was computed. [2020-10-27 20:37:36,558 INFO L277 CegarLoopResult]: At program point L20-2(lines 20 27) the Hoare annotation is: true [2020-10-27 20:37:36,558 INFO L270 CegarLoopResult]: At program point L20-3(lines 20 27) the Hoare annotation is: (or (<= main_~x1~0 (* 4294967296 (div main_~x1~0 4294967296))) (<= main_~x3~0 (* 4294967296 (div main_~x3~0 4294967296))) (<= main_~x2~0 (* 4294967296 (div main_~x2~0 4294967296)))) [2020-10-27 20:37:36,559 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-27 20:37:36,559 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-27 20:37:36,559 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-27 20:37:36,559 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-27 20:37:36,559 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-27 20:37:36,560 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-27 20:37:36,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:37:36 BoogieIcfgContainer [2020-10-27 20:37:36,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:37:36,584 INFO L168 Benchmark]: Toolchain (without parser) took 2714.08 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 83.6 MB in the end (delta: 43.0 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:36,588 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:37:36,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.74 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:36,590 INFO L168 Benchmark]: Boogie Preprocessor took 68.89 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:36,591 INFO L168 Benchmark]: RCFGBuilder took 536.69 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 134.6 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:36,593 INFO L168 Benchmark]: TraceAbstraction took 1767.57 ms. Allocated memory is still 151.0 MB. Free memory was 134.1 MB in the beginning and 83.6 MB in the end (delta: 50.5 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. [2020-10-27 20:37:36,604 INFO L339 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 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.74 ms. Allocated memory is still 151.0 MB. Free memory was 126.1 MB in the beginning and 116.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.89 ms. Allocated memory is still 151.0 MB. Free memory was 116.7 MB in the beginning and 115.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 536.69 ms. Allocated memory is still 151.0 MB. Free memory was 115.2 MB in the beginning and 134.6 MB in the end (delta: -19.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1767.57 ms. Allocated memory is still 151.0 MB. Free memory was 134.1 MB in the beginning and 83.6 MB in the end (delta: 50.5 MB). Peak memory consumption was 51.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 25 SDslu, 19 SDs, 0 SdLazy, 34 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 9 LocationsWithAnnotation, 12 PreInvPairs, 13 NumberOfFragments, 63 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1177 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...