/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/loop-invgen/id_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 20:18:48,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:18:48,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:18:48,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:18:48,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:18:48,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:18:48,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:18:48,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:18:48,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:18:48,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:18:48,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:18:48,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:18:48,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:18:48,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:18:48,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:18:48,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:18:48,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:18:48,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:18:48,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:18:48,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:18:48,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:18:48,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:18:48,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:18:48,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:18:48,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:18:48,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:18:48,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:18:48,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:18:48,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:18:48,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:18:48,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:18:48,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:18:48,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:18:48,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:18:48,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:18:48,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:18:48,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:18:48,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:18:48,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:18:48,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:18:48,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:18:48,562 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 20:18:48,612 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:18:48,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:18:48,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:18:48,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:18:48,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:18:48,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:18:48,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:18:48,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:18:48,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:18:48,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:18:48,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:18:48,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:18:48,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:18:48,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:18:48,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:18:48,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:18:48,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:18:48,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:18:48,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:18:48,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:18:48,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:18:48,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:18:48,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:18:48,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:18:48,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:18:48,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:18:48,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:18:48,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:18:48,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:18:48,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:18:48,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:18:49,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:18:49,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:18:49,016 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:18:49,017 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:18:49,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2020-10-27 20:18:49,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ca6c812/1e4443c91e7f47fd98dbf0d3615359ae/FLAGf1b201a3f [2020-10-27 20:18:49,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:18:49,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/id_trans.i [2020-10-27 20:18:49,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ca6c812/1e4443c91e7f47fd98dbf0d3615359ae/FLAGf1b201a3f [2020-10-27 20:18:50,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e5ca6c812/1e4443c91e7f47fd98dbf0d3615359ae [2020-10-27 20:18:50,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:18:50,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:18:50,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:18:50,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:18:50,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:18:50,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@956a6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50, skipping insertion in model container [2020-10-27 20:18:50,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:18:50,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:18:50,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:18:50,368 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:18:50,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:18:50,404 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:18:50,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50 WrapperNode [2020-10-27 20:18:50,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:18:50,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:18:50,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:18:50,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:18:50,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (1/1) ... [2020-10-27 20:18:50,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:18:50,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:18:50,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:18:50,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:18:50,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (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 20:18:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:18:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:18:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:18:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 20:18:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 20:18:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:18:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:18:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:18:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 20:18:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 20:18:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:18:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:18:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 20:18:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 20:18:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 20:18:50,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:18:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:18:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:18:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:18:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:18:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:18:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:18:50,886 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:18:50,886 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 20:18:50,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:18:50 BoogieIcfgContainer [2020-10-27 20:18:50,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:18:50,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:18:50,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:18:50,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:18:50,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:18:50" (1/3) ... [2020-10-27 20:18:50,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3e736c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:18:50, skipping insertion in model container [2020-10-27 20:18:50,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:50" (2/3) ... [2020-10-27 20:18:50,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3e736c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:18:50, skipping insertion in model container [2020-10-27 20:18:50,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:18:50" (3/3) ... [2020-10-27 20:18:50,898 INFO L111 eAbstractionObserver]: Analyzing ICFG id_trans.i [2020-10-27 20:18:50,910 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:18:50,915 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:18:50,943 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:18:50,985 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:18:50,985 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:18:50,986 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:18:50,986 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:18:50,986 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:18:50,986 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:18:50,986 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:18:50,987 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:18:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-27 20:18:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-27 20:18:51,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:18:51,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:18:51,021 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:18:51,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:18:51,031 INFO L82 PathProgramCache]: Analyzing trace with hash 997718721, now seen corresponding path program 1 times [2020-10-27 20:18:51,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:18:51,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566249815] [2020-10-27 20:18:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:18:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:18:51,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:18:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:18:51,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 20:18:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:18:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-27 20:18:51,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:18:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:18:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:18:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 20:18:51,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:18:51,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:18:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:18:51,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:18:51,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:18:51,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:18:51,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:18:51,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:18:51,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:18:51,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:18:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:18:51,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:18:51,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:18:51,869 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 20:18:51,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566249815] [2020-10-27 20:18:51,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:18:51,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:18:51,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795160943] [2020-10-27 20:18:51,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:18:51,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:18:51,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:18:51,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:18:51,896 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2020-10-27 20:18:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:18:52,341 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2020-10-27 20:18:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 20:18:52,344 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-27 20:18:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:18:52,352 INFO L225 Difference]: With dead ends: 54 [2020-10-27 20:18:52,352 INFO L226 Difference]: Without dead ends: 25 [2020-10-27 20:18:52,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-27 20:18:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-27 20:18:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-10-27 20:18:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-27 20:18:52,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-10-27 20:18:52,404 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2020-10-27 20:18:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:18:52,404 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-10-27 20:18:52,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:18:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-10-27 20:18:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 20:18:52,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:18:52,406 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:18:52,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:18:52,407 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:18:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:18:52,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1644703156, now seen corresponding path program 1 times [2020-10-27 20:18:52,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:18:52,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835131071] [2020-10-27 20:18:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:18:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:18:52,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:18:52,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:18:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 20:18:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:18:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-27 20:18:52,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:18:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 20:18:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 20:18:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 20:18:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:18:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:18:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:18:52,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:18:52,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:18:52,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:18:52,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:18:52,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 20:18:52,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:18:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:18:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:18:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:18:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:18:52,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 20:18:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:18:52,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:18:52,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:18:52,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 20:18:52,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:18:52,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:18:52,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:18:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 20:18:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:18:52,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 20:18:52,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:18:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:18:52,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835131071] [2020-10-27 20:18:52,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:18:52,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 20:18:52,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024775138] [2020-10-27 20:18:52,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 20:18:52,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:18:52,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 20:18:52,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 20:18:52,716 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2020-10-27 20:18:53,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:18:53,005 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-10-27 20:18:53,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 20:18:53,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-27 20:18:53,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:18:53,007 INFO L225 Difference]: With dead ends: 33 [2020-10-27 20:18:53,008 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 20:18:53,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 20:18:53,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 20:18:53,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 20:18:53,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 20:18:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 20:18:53,018 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 19 [2020-10-27 20:18:53,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:18:53,019 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 20:18:53,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 20:18:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 20:18:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 20:18:53,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:18:53,020 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:18:53,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:18:53,021 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:18:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:18:53,021 INFO L82 PathProgramCache]: Analyzing trace with hash 211368340, now seen corresponding path program 1 times [2020-10-27 20:18:53,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:18:53,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872612123] [2020-10-27 20:18:53,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:18:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 20:18:53,042 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 20:18:53,042 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 20:18:53,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 20:18:53,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:18:53 BoogieIcfgContainer [2020-10-27 20:18:53,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:18:53,064 INFO L168 Benchmark]: Toolchain (without parser) took 2928.81 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 121.7 MB in the beginning and 88.8 MB in the end (delta: 32.9 MB). Peak memory consumption was 66.8 MB. Max. memory is 8.0 GB. [2020-10-27 20:18:53,065 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 164.6 MB. Free memory is still 138.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:18:53,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.36 ms. Allocated memory is still 164.6 MB. Free memory was 121.2 MB in the beginning and 143.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:18:53,067 INFO L168 Benchmark]: Boogie Preprocessor took 81.05 ms. Allocated memory is still 164.6 MB. Free memory was 143.8 MB in the beginning and 147.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 8.0 GB. [2020-10-27 20:18:53,068 INFO L168 Benchmark]: RCFGBuilder took 400.47 ms. Allocated memory is still 164.6 MB. Free memory was 147.5 MB in the beginning and 133.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 20:18:53,069 INFO L168 Benchmark]: TraceAbstraction took 2171.22 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 132.6 MB in the beginning and 88.8 MB in the end (delta: 43.9 MB). Peak memory consumption was 78.5 MB. Max. memory is 8.0 GB. [2020-10-27 20:18:53,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 164.6 MB. Free memory is still 138.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 264.36 ms. Allocated memory is still 164.6 MB. Free memory was 121.2 MB in the beginning and 143.8 MB in the end (delta: -22.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 81.05 ms. Allocated memory is still 164.6 MB. Free memory was 143.8 MB in the beginning and 147.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 2.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.47 ms. Allocated memory is still 164.6 MB. Free memory was 147.5 MB in the beginning and 133.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2171.22 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 132.6 MB in the beginning and 88.8 MB in the end (delta: 43.9 MB). Peak memory consumption was 78.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) [L32] CALL __VERIFIER_assert( 0 <= j) [L18] COND FALSE !(!(cond)) [L32] RET __VERIFIER_assert( 0 <= j) [L33] CALL __VERIFIER_assert( j < material_length ) [L18] COND FALSE !(!(cond)) [L33] RET __VERIFIER_assert( j < material_length ) [L34] CALL __VERIFIER_assert( 0 <= j/4 ) [L18] COND FALSE !(!(cond)) [L34] RET __VERIFIER_assert( 0 <= j/4 ) [L35] CALL __VERIFIER_assert( j/4 < nlen) [L18] COND TRUE !(cond) [L19] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "assert.h", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 39 SDslu, 60 SDs, 0 SdLazy, 118 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 1511 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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...