/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/verifythis/tree_del_iter_incorrect.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:50:41,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:50:41,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:50:41,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:50:41,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:50:41,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:50:41,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:50:41,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:50:41,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:50:41,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:50:41,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:50:41,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:50:41,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:50:41,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:50:41,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:50:41,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:50:41,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:50:41,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:50:41,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:50:41,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:50:41,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:50:41,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:50:41,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:50:41,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:50:41,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:50:41,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:50:41,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:50:41,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:50:41,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:50:41,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:50:41,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:50:41,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:50:41,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:50:41,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:50:41,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:50:41,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:50:41,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:50:41,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:50:41,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:50:41,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:50:41,807 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:50:41,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:50:41,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:50:41,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:50:41,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:50:41,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:50:41,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:50:41,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:50:41,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:50:41,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:50:41,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:50:41,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:50:41,809 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:50:41,809 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:50:41,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:50:41,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:50:41,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:50:41,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:50:41,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:50:41,810 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:50:42,073 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:50:42,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:50:42,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:50:42,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:50:42,090 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:50:42,091 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_del_iter_incorrect.c [2020-07-18 00:50:42,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84c1659b/f48c8c82cfd745aa8690b527cab4af79/FLAG73290531f [2020-07-18 00:50:42,629 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:50:42,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/tree_del_iter_incorrect.c [2020-07-18 00:50:42,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84c1659b/f48c8c82cfd745aa8690b527cab4af79/FLAG73290531f [2020-07-18 00:50:42,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b84c1659b/f48c8c82cfd745aa8690b527cab4af79 [2020-07-18 00:50:42,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:50:42,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:50:42,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:50:42,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:50:42,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:50:42,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:50:42" (1/1) ... [2020-07-18 00:50:43,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfe1e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43, skipping insertion in model container [2020-07-18 00:50:43,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:50:42" (1/1) ... [2020-07-18 00:50:43,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:50:43,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:50:43,238 WARN L1484 CHandler]: Possible shadowing of function min [2020-07-18 00:50:43,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:50:43,273 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:50:43,387 WARN L1484 CHandler]: Possible shadowing of function min [2020-07-18 00:50:43,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:50:43,425 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:50:43,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43 WrapperNode [2020-07-18 00:50:43,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:50:43,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:50:43,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:50:43,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:50:43,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (1/1) ... [2020-07-18 00:50:43,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:50:43,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:50:43,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:50:43,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:50:43,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (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 [2020-07-18 00:50:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:50:43,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure min [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del [2020-07-18 00:50:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder [2020-07-18 00:50:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure size [2020-07-18 00:50:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure task [2020-07-18 00:50:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:50:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-07-18 00:50:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:50:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:50:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure min [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:50:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure size [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure task [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:50:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:50:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:50:44,410 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:50:44,411 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-18 00:50:44,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:50:44 BoogieIcfgContainer [2020-07-18 00:50:44,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:50:44,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:50:44,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:50:44,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:50:44,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:50:42" (1/3) ... [2020-07-18 00:50:44,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b3757b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:50:44, skipping insertion in model container [2020-07-18 00:50:44,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:50:43" (2/3) ... [2020-07-18 00:50:44,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b3757b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:50:44, skipping insertion in model container [2020-07-18 00:50:44,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:50:44" (3/3) ... [2020-07-18 00:50:44,425 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_del_iter_incorrect.c [2020-07-18 00:50:44,435 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:50:44,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:50:44,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:50:44,479 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:50:44,479 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:50:44,479 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:50:44,479 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:50:44,480 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:50:44,480 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:50:44,480 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:50:44,480 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:50:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-07-18 00:50:44,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-18 00:50:44,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:50:44,518 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, 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] [2020-07-18 00:50:44,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:50:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:50:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1732590877, now seen corresponding path program 1 times [2020-07-18 00:50:44,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:50:44,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019406945] [2020-07-18 00:50:44,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:50:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,850 INFO L280 TraceCheckUtils]: 0: Hoare triple {240#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {202#true} is VALID [2020-07-18 00:50:44,851 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} #valid := #valid[0 := 0]; {202#true} is VALID [2020-07-18 00:50:44,851 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} assume 0 < #StackHeapBarrier; {202#true} is VALID [2020-07-18 00:50:44,851 INFO L280 TraceCheckUtils]: 3: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:44,852 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {202#true} {202#true} #282#return; {202#true} is VALID [2020-07-18 00:50:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,885 INFO L280 TraceCheckUtils]: 0: Hoare triple {241#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} assume 0 != #t~nondet1 % 256; {202#true} is VALID [2020-07-18 00:50:44,885 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} havoc #t~nondet1; {202#true} is VALID [2020-07-18 00:50:44,885 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} #res.base, #res.offset := 0, 0; {202#true} is VALID [2020-07-18 00:50:44,886 INFO L280 TraceCheckUtils]: 3: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:44,886 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {202#true} {202#true} #240#return; {202#true} is VALID [2020-07-18 00:50:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,893 INFO L280 TraceCheckUtils]: 0: Hoare triple {202#true} ~n.base, ~n.offset := #in~n.base, #in~n.offset; {202#true} is VALID [2020-07-18 00:50:44,893 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} assume ~n.base == 0 && ~n.offset == 0; {202#true} is VALID [2020-07-18 00:50:44,894 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} #res := 2147483647; {202#true} is VALID [2020-07-18 00:50:44,894 INFO L280 TraceCheckUtils]: 3: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:44,895 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {202#true} {202#true} #252#return; {202#true} is VALID [2020-07-18 00:50:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,919 INFO L280 TraceCheckUtils]: 0: Hoare triple {202#true} ~t.base, ~t.offset := #in~t.base, #in~t.offset; {202#true} is VALID [2020-07-18 00:50:44,920 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} assume ~t.base == 0 && ~t.offset == 0; {202#true} is VALID [2020-07-18 00:50:44,921 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} #res := 0; {242#(= 0 |size_#res|)} is VALID [2020-07-18 00:50:44,922 INFO L280 TraceCheckUtils]: 3: Hoare triple {242#(= 0 |size_#res|)} assume true; {242#(= 0 |size_#res|)} is VALID [2020-07-18 00:50:44,924 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {242#(= 0 |size_#res|)} {202#true} #254#return; {224#(= 0 |task_#t~ret28|)} is VALID [2020-07-18 00:50:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,962 INFO L280 TraceCheckUtils]: 0: Hoare triple {202#true} ~cond := #in~cond; {243#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2020-07-18 00:50:44,963 INFO L280 TraceCheckUtils]: 1: Hoare triple {243#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {244#(not (= 0 |assume_abort_if_not_#in~cond|))} is VALID [2020-07-18 00:50:44,964 INFO L280 TraceCheckUtils]: 2: Hoare triple {244#(not (= 0 |assume_abort_if_not_#in~cond|))} assume true; {244#(not (= 0 |assume_abort_if_not_#in~cond|))} is VALID [2020-07-18 00:50:44,965 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {244#(not (= 0 |assume_abort_if_not_#in~cond|))} {225#(= 0 task_~n~1)} #256#return; {203#false} is VALID [2020-07-18 00:50:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:44,985 INFO L280 TraceCheckUtils]: 0: Hoare triple {245#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {202#true} is VALID [2020-07-18 00:50:44,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:44,986 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {202#true} {203#false} #258#return; {203#false} is VALID [2020-07-18 00:50:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:50:45,015 INFO L280 TraceCheckUtils]: 0: Hoare triple {246#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~t.base, ~t.offset := #in~t.base, #in~t.offset; {202#true} is VALID [2020-07-18 00:50:45,016 INFO L280 TraceCheckUtils]: 1: Hoare triple {202#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset; {202#true} is VALID [2020-07-18 00:50:45,016 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} ~i := #in~i; {202#true} is VALID [2020-07-18 00:50:45,017 INFO L280 TraceCheckUtils]: 3: Hoare triple {202#true} assume ~t.base == 0 && ~t.offset == 0; {202#true} is VALID [2020-07-18 00:50:45,017 INFO L280 TraceCheckUtils]: 4: Hoare triple {202#true} #res := ~i; {202#true} is VALID [2020-07-18 00:50:45,017 INFO L280 TraceCheckUtils]: 5: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,018 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {202#true} {203#false} #260#return; {203#false} is VALID [2020-07-18 00:50:45,019 INFO L263 TraceCheckUtils]: 0: Hoare triple {202#true} call ULTIMATE.init(); {240#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:50:45,019 INFO L280 TraceCheckUtils]: 1: Hoare triple {240#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {202#true} is VALID [2020-07-18 00:50:45,020 INFO L280 TraceCheckUtils]: 2: Hoare triple {202#true} #valid := #valid[0 := 0]; {202#true} is VALID [2020-07-18 00:50:45,020 INFO L280 TraceCheckUtils]: 3: Hoare triple {202#true} assume 0 < #StackHeapBarrier; {202#true} is VALID [2020-07-18 00:50:45,020 INFO L280 TraceCheckUtils]: 4: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,021 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {202#true} {202#true} #282#return; {202#true} is VALID [2020-07-18 00:50:45,021 INFO L263 TraceCheckUtils]: 6: Hoare triple {202#true} call #t~ret41 := main(); {202#true} is VALID [2020-07-18 00:50:45,022 INFO L263 TraceCheckUtils]: 7: Hoare triple {202#true} call #t~ret40.base, #t~ret40.offset := nondet_tree(); {241#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-18 00:50:45,023 INFO L280 TraceCheckUtils]: 8: Hoare triple {241#(and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} assume 0 != #t~nondet1 % 256; {202#true} is VALID [2020-07-18 00:50:45,023 INFO L280 TraceCheckUtils]: 9: Hoare triple {202#true} havoc #t~nondet1; {202#true} is VALID [2020-07-18 00:50:45,023 INFO L280 TraceCheckUtils]: 10: Hoare triple {202#true} #res.base, #res.offset := 0, 0; {202#true} is VALID [2020-07-18 00:50:45,024 INFO L280 TraceCheckUtils]: 11: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,024 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {202#true} {202#true} #240#return; {202#true} is VALID [2020-07-18 00:50:45,024 INFO L263 TraceCheckUtils]: 13: Hoare triple {202#true} call task(#t~ret40.base, #t~ret40.offset); {202#true} is VALID [2020-07-18 00:50:45,025 INFO L280 TraceCheckUtils]: 14: Hoare triple {202#true} ~t.base, ~t.offset := #in~t.base, #in~t.offset; {202#true} is VALID [2020-07-18 00:50:45,025 INFO L263 TraceCheckUtils]: 15: Hoare triple {202#true} call #t~ret27 := min(~t.base, ~t.offset); {202#true} is VALID [2020-07-18 00:50:45,025 INFO L280 TraceCheckUtils]: 16: Hoare triple {202#true} ~n.base, ~n.offset := #in~n.base, #in~n.offset; {202#true} is VALID [2020-07-18 00:50:45,026 INFO L280 TraceCheckUtils]: 17: Hoare triple {202#true} assume ~n.base == 0 && ~n.offset == 0; {202#true} is VALID [2020-07-18 00:50:45,026 INFO L280 TraceCheckUtils]: 18: Hoare triple {202#true} #res := 2147483647; {202#true} is VALID [2020-07-18 00:50:45,026 INFO L280 TraceCheckUtils]: 19: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,027 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {202#true} {202#true} #252#return; {202#true} is VALID [2020-07-18 00:50:45,027 INFO L280 TraceCheckUtils]: 21: Hoare triple {202#true} assume -2147483648 <= #t~ret27 && #t~ret27 <= 2147483647; {202#true} is VALID [2020-07-18 00:50:45,027 INFO L280 TraceCheckUtils]: 22: Hoare triple {202#true} ~a~1 := #t~ret27; {202#true} is VALID [2020-07-18 00:50:45,028 INFO L280 TraceCheckUtils]: 23: Hoare triple {202#true} havoc #t~ret27; {202#true} is VALID [2020-07-18 00:50:45,028 INFO L280 TraceCheckUtils]: 24: Hoare triple {202#true} SUMMARY for call ~#b~1.base, ~#b~1.offset := #Ultimate.allocOnStack(4); srcloc: L82 {202#true} is VALID [2020-07-18 00:50:45,028 INFO L263 TraceCheckUtils]: 25: Hoare triple {202#true} call #t~ret28 := size(~t.base, ~t.offset); {202#true} is VALID [2020-07-18 00:50:45,029 INFO L280 TraceCheckUtils]: 26: Hoare triple {202#true} ~t.base, ~t.offset := #in~t.base, #in~t.offset; {202#true} is VALID [2020-07-18 00:50:45,029 INFO L280 TraceCheckUtils]: 27: Hoare triple {202#true} assume ~t.base == 0 && ~t.offset == 0; {202#true} is VALID [2020-07-18 00:50:45,030 INFO L280 TraceCheckUtils]: 28: Hoare triple {202#true} #res := 0; {242#(= 0 |size_#res|)} is VALID [2020-07-18 00:50:45,031 INFO L280 TraceCheckUtils]: 29: Hoare triple {242#(= 0 |size_#res|)} assume true; {242#(= 0 |size_#res|)} is VALID [2020-07-18 00:50:45,032 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {242#(= 0 |size_#res|)} {202#true} #254#return; {224#(= 0 |task_#t~ret28|)} is VALID [2020-07-18 00:50:45,033 INFO L280 TraceCheckUtils]: 31: Hoare triple {224#(= 0 |task_#t~ret28|)} assume -2147483648 <= #t~ret28 && #t~ret28 <= 2147483647; {224#(= 0 |task_#t~ret28|)} is VALID [2020-07-18 00:50:45,034 INFO L280 TraceCheckUtils]: 32: Hoare triple {224#(= 0 |task_#t~ret28|)} ~n~1 := #t~ret28; {225#(= 0 task_~n~1)} is VALID [2020-07-18 00:50:45,034 INFO L280 TraceCheckUtils]: 33: Hoare triple {225#(= 0 task_~n~1)} havoc #t~ret28; {225#(= 0 task_~n~1)} is VALID [2020-07-18 00:50:45,035 INFO L263 TraceCheckUtils]: 34: Hoare triple {225#(= 0 task_~n~1)} call assume_abort_if_not((if 0 != ~n~1 then 1 else 0)); {202#true} is VALID [2020-07-18 00:50:45,036 INFO L280 TraceCheckUtils]: 35: Hoare triple {202#true} ~cond := #in~cond; {243#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2020-07-18 00:50:45,036 INFO L280 TraceCheckUtils]: 36: Hoare triple {243#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} assume !(0 == ~cond); {244#(not (= 0 |assume_abort_if_not_#in~cond|))} is VALID [2020-07-18 00:50:45,037 INFO L280 TraceCheckUtils]: 37: Hoare triple {244#(not (= 0 |assume_abort_if_not_#in~cond|))} assume true; {244#(not (= 0 |assume_abort_if_not_#in~cond|))} is VALID [2020-07-18 00:50:45,038 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {244#(not (= 0 |assume_abort_if_not_#in~cond|))} {225#(= 0 task_~n~1)} #256#return; {203#false} is VALID [2020-07-18 00:50:45,039 INFO L280 TraceCheckUtils]: 39: Hoare triple {203#false} SUMMARY for call #t~malloc29.base, #t~malloc29.offset := #Ultimate.allocOnHeap(4 * ~n~1); srcloc: L85-1 {203#false} is VALID [2020-07-18 00:50:45,039 INFO L263 TraceCheckUtils]: 40: Hoare triple {203#false} call #Ultimate.meminit(#t~malloc29.base, #t~malloc29.offset, ~n~1, 4, 4 * ~n~1); {245#(= |#memory_int| |old(#memory_int)|)} is VALID [2020-07-18 00:50:45,039 INFO L280 TraceCheckUtils]: 41: Hoare triple {245#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {202#true} is VALID [2020-07-18 00:50:45,040 INFO L280 TraceCheckUtils]: 42: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,040 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {202#true} {203#false} #258#return; {203#false} is VALID [2020-07-18 00:50:45,040 INFO L280 TraceCheckUtils]: 44: Hoare triple {203#false} ~x~0.base, ~x~0.offset := #t~malloc29.base, #t~malloc29.offset; {203#false} is VALID [2020-07-18 00:50:45,041 INFO L263 TraceCheckUtils]: 45: Hoare triple {203#false} call #t~ret30 := tree_inorder(~t.base, ~t.offset, ~x~0.base, ~x~0.offset, ~n~1); {246#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} is VALID [2020-07-18 00:50:45,041 INFO L280 TraceCheckUtils]: 46: Hoare triple {246#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~t.base, ~t.offset := #in~t.base, #in~t.offset; {202#true} is VALID [2020-07-18 00:50:45,041 INFO L280 TraceCheckUtils]: 47: Hoare triple {202#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset; {202#true} is VALID [2020-07-18 00:50:45,042 INFO L280 TraceCheckUtils]: 48: Hoare triple {202#true} ~i := #in~i; {202#true} is VALID [2020-07-18 00:50:45,042 INFO L280 TraceCheckUtils]: 49: Hoare triple {202#true} assume ~t.base == 0 && ~t.offset == 0; {202#true} is VALID [2020-07-18 00:50:45,042 INFO L280 TraceCheckUtils]: 50: Hoare triple {202#true} #res := ~i; {202#true} is VALID [2020-07-18 00:50:45,043 INFO L280 TraceCheckUtils]: 51: Hoare triple {202#true} assume true; {202#true} is VALID [2020-07-18 00:50:45,043 INFO L275 TraceCheckUtils]: 52: Hoare quadruple {202#true} {203#false} #260#return; {203#false} is VALID [2020-07-18 00:50:45,043 INFO L280 TraceCheckUtils]: 53: Hoare triple {203#false} assume -2147483648 <= #t~ret30 && #t~ret30 <= 2147483647; {203#false} is VALID [2020-07-18 00:50:45,044 INFO L280 TraceCheckUtils]: 54: Hoare triple {203#false} havoc #t~ret30; {203#false} is VALID [2020-07-18 00:50:45,044 INFO L280 TraceCheckUtils]: 55: Hoare triple {203#false} SUMMARY for call #t~mem31 := read~int(~x~0.base, ~x~0.offset, 4); srcloc: L88 {203#false} is VALID [2020-07-18 00:50:45,044 INFO L263 TraceCheckUtils]: 56: Hoare triple {203#false} call __VERIFIER_assert((if ~a~1 == #t~mem31 then 1 else 0)); {203#false} is VALID [2020-07-18 00:50:45,045 INFO L280 TraceCheckUtils]: 57: Hoare triple {203#false} ~cond := #in~cond; {203#false} is VALID [2020-07-18 00:50:45,045 INFO L280 TraceCheckUtils]: 58: Hoare triple {203#false} assume 0 == ~cond; {203#false} is VALID [2020-07-18 00:50:45,045 INFO L280 TraceCheckUtils]: 59: Hoare triple {203#false} assume !false; {203#false} is VALID [2020-07-18 00:50:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:50:45,975 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-07-18 00:50:45,979 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:50:45,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019406945] [2020-07-18 00:50:45,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:50:45,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-18 00:50:45,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655529522] [2020-07-18 00:50:45,989 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 60 [2020-07-18 00:50:45,992 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:50:45,996 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states. [2020-07-18 00:50:46,710 WARN L140 InductivityCheck]: Transition 253#(and (= 0 __VERIFIER_assert_~cond) (exists ((v_task_~a~1_6 Int)) (= |__VERIFIER_assert_#in~cond| (ite (= (select (select |#memory_int| task_~x~0.base) task_~x~0.offset) v_task_~a~1_6) 1 0))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) ( _ , assume !false; , 203#false ) not inductive [2020-07-18 00:50:46,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:50:46,711 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:583) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:50:46,716 INFO L168 Benchmark]: Toolchain (without parser) took 3724.92 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 102.3 MB in the beginning and 109.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,717 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.00 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 180.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,719 INFO L168 Benchmark]: Boogie Preprocessor took 63.66 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 176.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,720 INFO L168 Benchmark]: RCFGBuilder took 926.58 ms. Allocated memory is still 203.9 MB. Free memory was 176.7 MB in the beginning and 100.1 MB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,721 INFO L168 Benchmark]: TraceAbstraction took 2296.06 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 100.1 MB in the beginning and 109.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:50:46,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 432.00 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 180.0 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.66 ms. Allocated memory is still 203.9 MB. Free memory was 180.0 MB in the beginning and 176.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 926.58 ms. Allocated memory is still 203.9 MB. Free memory was 176.7 MB in the beginning and 100.1 MB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2296.06 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 100.1 MB in the beginning and 109.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:142) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...