/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=SHALLOWEST --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/ldv-regression/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:14:06,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:14:06,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:14:06,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:14:06,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:14:06,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:14:06,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:14:06,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:14:06,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:14:06,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:14:06,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:14:06,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:14:06,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:14:06,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:14:06,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:14:06,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:14:06,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:14:06,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:14:06,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:14:06,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:14:06,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:14:06,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:14:06,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:14:06,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:14:06,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:14:06,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:14:06,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:14:06,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:14:06,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:14:06,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 01:14:06,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:14:06,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:14:06,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:14:06,275 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 01:14:06,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:14:06,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:14:06,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:14:06,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:14:06,307 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:14:06,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:14:06,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:14:06,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:14:06,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:14:06,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:14:06,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:14:06,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:14:06,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:14:06,309 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:14:06,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:14:06,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:14:06,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:14:06,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:14:06,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:14:06,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:14:06,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:14:06,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:14:06,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:14:06,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:14:06,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:14:06,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:14:06,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:14:06,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:14:06,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:14:06,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:14:06,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:14:06,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:14:06,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:14:06,741 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:14:06,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:14:06,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2020-10-27 01:14:06,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a419338cb/c2d20f03ff3f4db68a8ce22893e59cc5/FLAG6e5560dca [2020-10-27 01:14:07,478 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:14:07,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test14.c [2020-10-27 01:14:07,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a419338cb/c2d20f03ff3f4db68a8ce22893e59cc5/FLAG6e5560dca [2020-10-27 01:14:07,828 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a419338cb/c2d20f03ff3f4db68a8ce22893e59cc5 [2020-10-27 01:14:07,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:14:07,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:14:07,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:14:07,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:14:07,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:14:07,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:14:07" (1/1) ... [2020-10-27 01:14:07,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d28a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:07, skipping insertion in model container [2020-10-27 01:14:07,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:14:07" (1/1) ... [2020-10-27 01:14:07,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:14:07,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:14:08,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:14:08,116 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:14:08,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:14:08,153 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:14:08,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08 WrapperNode [2020-10-27 01:14:08,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:14:08,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:14:08,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:14:08,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:14:08,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (1/1) ... [2020-10-27 01:14:08,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:14:08,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:14:08,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:14:08,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:14:08,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (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 01:14:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:14:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:14:08,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:14:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-10-27 01:14:08,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:14:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:14:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:14:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:14:08,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:14:08,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:14:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:14:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:14:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:14:08,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:14:08,639 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:14:08,644 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 01:14:08,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:14:08 BoogieIcfgContainer [2020-10-27 01:14:08,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:14:08,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:14:08,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:14:08,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:14:08,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:14:07" (1/3) ... [2020-10-27 01:14:08,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19284c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:14:08, skipping insertion in model container [2020-10-27 01:14:08,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:14:08" (2/3) ... [2020-10-27 01:14:08,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19284c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:14:08, skipping insertion in model container [2020-10-27 01:14:08,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:14:08" (3/3) ... [2020-10-27 01:14:08,681 INFO L111 eAbstractionObserver]: Analyzing ICFG test14.c [2020-10-27 01:14:08,697 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:14:08,702 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:14:08,717 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:14:08,748 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:14:08,748 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:14:08,748 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:14:08,748 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:14:08,748 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:14:08,749 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:14:08,749 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:14:08,749 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:14:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 01:14:08,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-27 01:14:08,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:14:08,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:14:08,776 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:14:08,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:14:08,783 INFO L82 PathProgramCache]: Analyzing trace with hash -2072328177, now seen corresponding path program 1 times [2020-10-27 01:14:08,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:14:08,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343181570] [2020-10-27 01:14:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:14:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:09,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:09,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:09,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:09,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 01:14:09,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:14:09,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-27 01:14:09,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 01:14:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:14:09,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 01:14:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 01:14:09,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:14:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:09,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:09,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:14:09,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:09,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 01:14:09,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:09,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:14:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:09,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:14:09,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:09,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:09,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:09,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:09,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:09,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:09,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 01:14:09,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:14:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:14:09,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:14:09,765 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 01:14:09,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343181570] [2020-10-27 01:14:09,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:09,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:14:09,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449216204] [2020-10-27 01:14:09,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:14:09,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:09,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:14:09,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:14:09,796 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2020-10-27 01:14:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:09,953 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2020-10-27 01:14:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 01:14:09,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-27 01:14:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:09,964 INFO L225 Difference]: With dead ends: 34 [2020-10-27 01:14:09,964 INFO L226 Difference]: Without dead ends: 19 [2020-10-27 01:14:09,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:14:09,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-27 01:14:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-27 01:14:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-27 01:14:10,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-27 01:14:10,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 16 [2020-10-27 01:14:10,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:10,011 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-27 01:14:10,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:14:10,012 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-27 01:14:10,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 01:14:10,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:14:10,013 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:14:10,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:14:10,013 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:14:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:14:10,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1406594089, now seen corresponding path program 1 times [2020-10-27 01:14:10,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:14:10,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258154225] [2020-10-27 01:14:10,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:14:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:10,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:10,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 01:14:10,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:14:10,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 01:14:10,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:10,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 01:14:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 01:14:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 01:14:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:10,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:14:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:10,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:10,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:10,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:14:10,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:10,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:14:10,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:14:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:14:10,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:14:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:14:10,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:14:10,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:14:10,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:14:10,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:14:10,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:14:10,473 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 01:14:10,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258154225] [2020-10-27 01:14:10,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:14:10,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 01:14:10,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741283528] [2020-10-27 01:14:10,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 01:14:10,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:14:10,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 01:14:10,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:14:10,477 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 6 states. [2020-10-27 01:14:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:14:10,609 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-10-27 01:14:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 01:14:10,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-27 01:14:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:14:10,612 INFO L225 Difference]: With dead ends: 19 [2020-10-27 01:14:10,612 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 01:14:10,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:14:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 01:14:10,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 01:14:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 01:14:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 01:14:10,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-27 01:14:10,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:14:10,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 01:14:10,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 01:14:10,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 01:14:10,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 01:14:10,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:14:10,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 01:14:10,807 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 01:14:10,807 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 01:14:10,807 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 01:14:10,808 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 01:14:10,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:10,808 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-27 01:14:10,808 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:10,808 INFO L274 CegarLoopResult]: For program point get_dummyFINAL(lines 9 12) no Hoare annotation was computed. [2020-10-27 01:14:10,809 INFO L274 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-10-27 01:14:10,809 INFO L277 CegarLoopResult]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2020-10-27 01:14:10,809 INFO L274 CegarLoopResult]: For program point get_dummyEXIT(lines 9 12) no Hoare annotation was computed. [2020-10-27 01:14:10,809 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 01:14:10,809 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 01:14:10,809 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 01:14:10,810 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 01:14:10,811 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-27 01:14:10,811 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 01:14:10,811 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2020-10-27 01:14:10,811 INFO L270 CegarLoopResult]: At program point L22(lines 14 29) the Hoare annotation is: false [2020-10-27 01:14:10,812 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-27 01:14:10,812 INFO L274 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-10-27 01:14:10,812 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (<= (+ main_~pc~0.base 1) 0) (<= 1 main_~pc~0.base)) [2020-10-27 01:14:10,812 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-27 01:14:10,812 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-10-27 01:14:10,813 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2020-10-27 01:14:10,813 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2020-10-27 01:14:10,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:14:10 BoogieIcfgContainer [2020-10-27 01:14:10,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:14:10,827 INFO L168 Benchmark]: Toolchain (without parser) took 2988.48 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 101.1 MB in the beginning and 52.3 MB in the end (delta: 48.9 MB). Peak memory consumption was 85.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:10,828 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:14:10,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.80 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 91.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:10,838 INFO L168 Benchmark]: Boogie Preprocessor took 37.15 ms. Allocated memory is still 125.8 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:10,839 INFO L168 Benchmark]: RCFGBuilder took 458.55 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 74.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:10,840 INFO L168 Benchmark]: TraceAbstraction took 2170.73 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 74.2 MB in the beginning and 52.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 60.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:14:10,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 306.80 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 91.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.15 ms. Allocated memory is still 125.8 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 458.55 ms. Allocated memory is still 125.8 MB. Free memory was 89.8 MB in the beginning and 74.6 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2170.73 ms. Allocated memory was 125.8 MB in the beginning and 162.5 MB in the end (delta: 36.7 MB). Free memory was 74.2 MB in the beginning and 52.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 60.6 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: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 24 SDslu, 43 SDs, 0 SdLazy, 68 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 8 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 64 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 2366 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...