/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:48:04,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:48:04,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:48:05,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:48:05,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:48:05,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:48:05,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:48:05,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:48:05,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:48:05,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:48:05,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:48:05,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:48:05,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:48:05,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:48:05,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:48:05,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:48:05,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:48:05,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:48:05,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:48:05,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:48:05,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:48:05,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:48:05,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:48:05,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:48:05,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:48:05,087 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 04:48:05,088 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 04:48:05,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 04:48:05,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 04:48:05,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 04:48:05,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 04:48:05,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 04:48:05,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 04:48:05,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:48:05,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:48:05,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:48:05,096 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:48:05,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:48:05,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:48:05,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:48:05,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:48:05,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:48:05,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:48:05,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:48:05,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:48:05,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:48:05,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:48:05,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:48:05,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:48:05,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:48:05,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:48:05,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:48:05,126 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:48:05,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:48:05,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:48:05,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:48:05,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:48:05,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:48:05,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:48:05,128 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:48:05,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:48:05,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:48:05,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:48:05,570 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:48:05,571 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:48:05,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-11-07 04:48:05,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a546221e9/d20a10186c284907988887c06a93d554/FLAG51f250377 [2020-11-07 04:48:06,284 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:48:06,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/recHanoi03-1.c [2020-11-07 04:48:06,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a546221e9/d20a10186c284907988887c06a93d554/FLAG51f250377 [2020-11-07 04:48:06,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a546221e9/d20a10186c284907988887c06a93d554 [2020-11-07 04:48:06,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:48:06,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:48:06,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:06,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:48:06,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:48:06,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bdeba37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06, skipping insertion in model container [2020-11-07 04:48:06,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:48:06,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:48:06,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:06,919 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:48:06,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:06,954 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:48:06,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06 WrapperNode [2020-11-07 04:48:06,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:06,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:48:06,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:48:06,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:48:06,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... [2020-11-07 04:48:06,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:48:06,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:48:06,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:48:06,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:48:06,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-11-07 04:48:07,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:48:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:48:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:48:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2020-11-07 04:48:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:48:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:48:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:48:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:48:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:48:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 04:48:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2020-11-07 04:48:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:48:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:48:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:48:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:48:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:48:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:48:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:48:07,400 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:48:07,400 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 04:48:07,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:07 BoogieIcfgContainer [2020-11-07 04:48:07,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:48:07,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:48:07,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:48:07,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:48:07,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:48:06" (1/3) ... [2020-11-07 04:48:07,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3efba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:07, skipping insertion in model container [2020-11-07 04:48:07,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:06" (2/3) ... [2020-11-07 04:48:07,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e3efba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:07, skipping insertion in model container [2020-11-07 04:48:07,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:07" (3/3) ... [2020-11-07 04:48:07,414 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-1.c [2020-11-07 04:48:07,433 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:48:07,437 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:48:07,484 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:48:07,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:48:07,533 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:48:07,533 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:48:07,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:48:07,533 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:48:07,534 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:48:07,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:48:07,537 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:48:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-11-07 04:48:07,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-07 04:48:07,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:07,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:07,575 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:07,582 INFO L82 PathProgramCache]: Analyzing trace with hash 660208407, now seen corresponding path program 1 times [2020-11-07 04:48:07,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:07,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218049561] [2020-11-07 04:48:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:48:07,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:48:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:48:07,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:48:07,831 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:48:07,832 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:48:07,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:48:07,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:48:07 BoogieIcfgContainer [2020-11-07 04:48:07,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:48:07,908 INFO L168 Benchmark]: Toolchain (without parser) took 1247.73 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 121.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:07,909 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:48:07,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.59 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:07,918 INFO L168 Benchmark]: Boogie Preprocessor took 35.84 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:07,919 INFO L168 Benchmark]: RCFGBuilder took 409.92 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 101.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:07,921 INFO L168 Benchmark]: TraceAbstraction took 498.06 ms. Allocated memory is still 151.0 MB. Free memory was 101.2 MB in the beginning and 121.6 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:48:07,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 290.59 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 116.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.84 ms. Allocated memory is still 151.0 MB. Free memory was 116.9 MB in the beginning and 115.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 409.92 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 101.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 498.06 ms. Allocated memory is still 151.0 MB. Free memory was 101.2 MB in the beginning and 121.6 MB in the end (delta: -20.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftLeft at line 33. Possible FailurePath: [L27] int n = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, n=1] [L28] COND FALSE !(n < 1) VAL [n=1] [L31] CALL, EXPR hanoi(n) VAL [\old(n)=1] [L19] COND TRUE n == 1 VAL [\old(n)=1, n=1] [L20] return 1; VAL [\old(n)=1, \result=1, n=1] [L31] RET, EXPR hanoi(n) VAL [hanoi(n)=1, n=1] [L31] unsigned result = hanoi(n); VAL [hanoi(n)=1, n=1, result=1] [L33] COND FALSE !(result+1>0 && result+1 == 1<