/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-28 06:05:09,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-28 06:05:09,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-28 06:05:09,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-28 06:05:09,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-28 06:05:09,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-28 06:05:09,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-28 06:05:09,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-28 06:05:09,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-28 06:05:09,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-28 06:05:09,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-28 06:05:09,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-28 06:05:09,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-28 06:05:09,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-28 06:05:09,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-28 06:05:09,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-28 06:05:09,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-28 06:05:09,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-28 06:05:09,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-28 06:05:09,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-28 06:05:09,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-28 06:05:09,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-28 06:05:09,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-28 06:05:09,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-28 06:05:09,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-28 06:05:09,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-28 06:05:09,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-28 06:05:09,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-28 06:05:09,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-28 06:05:09,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-28 06:05:09,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-28 06:05:09,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-28 06:05:09,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-28 06:05:09,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-28 06:05:09,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-28 06:05:09,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-28 06:05:09,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-28 06:05:09,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-28 06:05:09,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-28 06:05:09,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-28 06:05:09,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-28 06:05:09,232 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 [2020-08-28 06:05:09,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-28 06:05:09,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-28 06:05:09,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-28 06:05:09,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-28 06:05:09,296 INFO L138 SettingsManager]: * Use SBE=true [2020-08-28 06:05:09,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-28 06:05:09,297 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-28 06:05:09,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-28 06:05:09,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-28 06:05:09,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-28 06:05:09,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-28 06:05:09,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-28 06:05:09,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-28 06:05:09,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-28 06:05:09,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-28 06:05:09,300 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-28 06:05:09,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-28 06:05:09,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-28 06:05:09,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-28 06:05:09,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-28 06:05:09,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-28 06:05:09,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-28 06:05:09,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-28 06:05:09,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-28 06:05:09,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-28 06:05:09,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-28 06:05:09,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-28 06:05:09,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-28 06:05:09,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-28 06:05:09,303 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-08-28 06:05:09,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-28 06:05:09,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-28 06:05:09,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-28 06:05:09,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-28 06:05:09,880 INFO L275 PluginConnector]: CDTParser initialized [2020-08-28 06:05:09,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test02.c [2020-08-28 06:05:09,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/329f6d238/8ae1fa6bccec4a1cacf2b9dec5ee6eb5/FLAG06e09b74e [2020-08-28 06:05:10,532 INFO L306 CDTParser]: Found 1 translation units. [2020-08-28 06:05:10,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test02.c [2020-08-28 06:05:10,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/329f6d238/8ae1fa6bccec4a1cacf2b9dec5ee6eb5/FLAG06e09b74e [2020-08-28 06:05:10,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/329f6d238/8ae1fa6bccec4a1cacf2b9dec5ee6eb5 [2020-08-28 06:05:10,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-28 06:05:10,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-28 06:05:10,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-28 06:05:10,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-28 06:05:10,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-28 06:05:10,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:05:10" (1/1) ... [2020-08-28 06:05:10,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19617743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:10, skipping insertion in model container [2020-08-28 06:05:10,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:05:10" (1/1) ... [2020-08-28 06:05:10,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-28 06:05:10,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-28 06:05:11,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 06:05:11,146 INFO L203 MainTranslator]: Completed pre-run [2020-08-28 06:05:11,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-28 06:05:11,191 INFO L208 MainTranslator]: Completed translation [2020-08-28 06:05:11,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11 WrapperNode [2020-08-28 06:05:11,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-28 06:05:11,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-28 06:05:11,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-28 06:05:11,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-28 06:05:11,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (1/1) ... [2020-08-28 06:05:11,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-28 06:05:11,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-28 06:05:11,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-28 06:05:11,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-28 06:05:11,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (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 [2020-08-28 06:05:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-28 06:05:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-28 06:05:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-28 06:05:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-28 06:05:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-28 06:05:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-28 06:05:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-28 06:05:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-28 06:05:11,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-28 06:05:11,574 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-28 06:05:11,574 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-28 06:05:11,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:05:11 BoogieIcfgContainer [2020-08-28 06:05:11,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-28 06:05:11,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-28 06:05:11,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-28 06:05:11,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-28 06:05:11,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 06:05:10" (1/3) ... [2020-08-28 06:05:11,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:05:11, skipping insertion in model container [2020-08-28 06:05:11,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:05:11" (2/3) ... [2020-08-28 06:05:11,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:05:11, skipping insertion in model container [2020-08-28 06:05:11,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:05:11" (3/3) ... [2020-08-28 06:05:11,592 INFO L109 eAbstractionObserver]: Analyzing ICFG test02.c [2020-08-28 06:05:11,604 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-28 06:05:11,615 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-28 06:05:11,637 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-28 06:05:11,666 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-28 06:05:11,666 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-28 06:05:11,666 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-28 06:05:11,666 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-28 06:05:11,667 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-28 06:05:11,667 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-28 06:05:11,667 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-28 06:05:11,667 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-28 06:05:11,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-08-28 06:05:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-28 06:05:11,694 INFO L414 BasicCegarLoop]: Found error trace [2020-08-28 06:05:11,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-28 06:05:11,695 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-28 06:05:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-28 06:05:11,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1160017433, now seen corresponding path program 1 times [2020-08-28 06:05:11,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-28 06:05:11,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772300179] [2020-08-28 06:05:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-28 06:05:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-28 06:05:11,849 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-28 06:05:11,850 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-28 06:05:11,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-28 06:05:11,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:05:11 BoogieIcfgContainer [2020-08-28 06:05:11,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-28 06:05:11,874 INFO L168 Benchmark]: Toolchain (without parser) took 985.47 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 104.2 MB in the beginning and 158.5 MB in the end (delta: -54.3 MB). Peak memory consumption was 8.1 MB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,875 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.24 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 94.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,877 INFO L168 Benchmark]: Boogie Preprocessor took 117.85 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 94.2 MB in the beginning and 182.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,878 INFO L168 Benchmark]: RCFGBuilder took 268.62 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,879 INFO L168 Benchmark]: TraceAbstraction took 289.21 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 158.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-28 06:05:11,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 304.24 ms. Allocated memory is still 141.0 MB. Free memory was 104.0 MB in the beginning and 94.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.85 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 94.2 MB in the beginning and 182.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 268.62 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 170.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 289.21 ms. Allocated memory is still 203.4 MB. Free memory was 170.2 MB in the beginning and 158.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int q; [L7] int a, b; [L8] int *p1 = &a; [L9] int *p2 = p1; [L11] q = 0 [L13] COND TRUE p1 == p2 [L19] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...