/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:18:12,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:18:12,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:18:12,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:18:12,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:18:12,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:18:12,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:18:12,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:18:12,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:18:12,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:18:12,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:18:12,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:18:12,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:18:12,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:18:12,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:18:12,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:18:12,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:18:12,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:18:12,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:18:12,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:18:12,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:18:12,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:18:12,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:18:12,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:18:12,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 21:18:12,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 21:18:12,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 21:18:12,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 21:18:12,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 21:18:12,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 21:18:12,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 21:18:12,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 21:18:12,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 21:18:12,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 21:18:12,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 21:18:12,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 21:18:12,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 21:18:12,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 21:18:12,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:18:12,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:18:12,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:18:12,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:18:12,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:18:12,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:18:12,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:18:12,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:18:12,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:18:12,549 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:18:12,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:18:12,549 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:18:12,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:18:12,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:18:12,550 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:18:12,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:18:12,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:18:12,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:18:12,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:18:12,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:18:12,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:18:12,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:18:12,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:18:12,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:18:13,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:18:13,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:18:13,002 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:18:13,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2021-02-21 21:18:13,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab10f8b2/58ce753ed0f243daabba774c1b229c46/FLAG46c78415f [2021-02-21 21:18:13,708 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:18:13,709 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c [2021-02-21 21:18:13,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab10f8b2/58ce753ed0f243daabba774c1b229c46/FLAG46c78415f [2021-02-21 21:18:14,072 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab10f8b2/58ce753ed0f243daabba774c1b229c46 [2021-02-21 21:18:14,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:18:14,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:18:14,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:14,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:18:14,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:18:14,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9c255e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14, skipping insertion in model container [2021-02-21 21:18:14,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:18:14,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:18:14,269 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c[320,333] [2021-02-21 21:18:14,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:14,300 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:18:14,314 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c[320,333] [2021-02-21 21:18:14,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:18:14,335 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:18:14,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14 WrapperNode [2021-02-21 21:18:14,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:18:14,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:18:14,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:18:14,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:18:14,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (1/1) ... [2021-02-21 21:18:14,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:18:14,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:18:14,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:18:14,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:18:14,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (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 [2021-02-21 21:18:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:18:14,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:18:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:18:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:18:14,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:18:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:18:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-21 21:18:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:18:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:18:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:18:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:18:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:18:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:18:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:18:14,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:18:14,789 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 21:18:14,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:14 BoogieIcfgContainer [2021-02-21 21:18:14,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:18:14,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:18:14,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:18:14,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:18:14,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:18:14" (1/3) ... [2021-02-21 21:18:14,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6835d8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:14, skipping insertion in model container [2021-02-21 21:18:14,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:18:14" (2/3) ... [2021-02-21 21:18:14,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6835d8e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:18:14, skipping insertion in model container [2021-02-21 21:18:14,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:18:14" (3/3) ... [2021-02-21 21:18:14,803 INFO L111 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2021-02-21 21:18:14,812 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:18:14,817 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:18:14,841 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:18:14,871 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:18:14,871 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:18:14,871 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:18:14,872 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:18:14,872 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:18:14,872 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:18:14,872 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:18:14,872 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:18:14,903 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2021-02-21 21:18:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-21 21:18:14,928 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:18:14,930 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, 1, 1, 1] [2021-02-21 21:18:14,931 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:18:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:18:14,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1945788113, now seen corresponding path program 1 times [2021-02-21 21:18:14,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:18:14,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808863121] [2021-02-21 21:18:14,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:18:15,060 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:18:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:18:15,229 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:18:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 21:18:15,301 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 21:18:15,351 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-21 21:18:15,351 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 21:18:15,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:18:15,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:18:15 BoogieIcfgContainer [2021-02-21 21:18:15,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:18:15,382 INFO L168 Benchmark]: Toolchain (without parser) took 1302.16 ms. Allocated memory is still 156.2 MB. Free memory was 132.3 MB in the beginning and 122.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:15,384 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:18:15,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.12 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 121.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:15,391 INFO L168 Benchmark]: Boogie Preprocessor took 34.29 ms. Allocated memory is still 156.2 MB. Free memory was 121.7 MB in the beginning and 120.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:15,393 INFO L168 Benchmark]: RCFGBuilder took 419.08 ms. Allocated memory is still 156.2 MB. Free memory was 120.2 MB in the beginning and 137.3 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:15,394 INFO L168 Benchmark]: TraceAbstraction took 584.42 ms. Allocated memory is still 156.2 MB. Free memory was 136.8 MB in the beginning and 122.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-21 21:18:15,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 245.12 ms. Allocated memory is still 156.2 MB. Free memory was 131.3 MB in the beginning and 121.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.29 ms. Allocated memory is still 156.2 MB. Free memory was 121.7 MB in the beginning and 120.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 419.08 ms. Allocated memory is still 156.2 MB. Free memory was 120.2 MB in the beginning and 137.3 MB in the end (delta: -17.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 584.42 ms. Allocated memory is still 156.2 MB. Free memory was 136.8 MB in the beginning and 122.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L17] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L18] unsigned int d1=1, d2=1, d3=1; [L19] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L21] COND FALSE !(x1>0 && x2>0 && x3>0) [L30] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=48occurred 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: No data available, 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...