/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/ldv-regression/test25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:22:16,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:22:16,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:22:16,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-18 00:22:16,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:22:16,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:22:16,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:22:16,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:22:16,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:22:16,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:22:16,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:22:16,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:22:16,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:22:16,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:22:16,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:22:16,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:22:16,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:22:16,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:22:16,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:22:16,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:22:16,814 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 00:22:16,824 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:22:16,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:22:16,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:22:16,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:22:16,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:22:16,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:22:16,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:22:16,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:22:16,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:22:16,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:22:16,827 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:22:16,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:22:16,827 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:22:16,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:22:16,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:22:16,828 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:22:16,828 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:22:16,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:22:16,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:22:16,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:22:16,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:22:16,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:22:16,830 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:22:17,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:22:17,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:22:17,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:22:17,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:22:17,156 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:22:17,157 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test25-2.c [2020-07-18 00:22:17,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75dc39cb/f86f96af6565443b91ee705fd8c1e9c8/FLAG57182859f [2020-07-18 00:22:17,622 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:22:17,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test25-2.c [2020-07-18 00:22:17,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75dc39cb/f86f96af6565443b91ee705fd8c1e9c8/FLAG57182859f [2020-07-18 00:22:18,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c75dc39cb/f86f96af6565443b91ee705fd8c1e9c8 [2020-07-18 00:22:18,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:22:18,075 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:22:18,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:22:18,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:22:18,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:22:18,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d1e314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18, skipping insertion in model container [2020-07-18 00:22:18,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:22:18,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:22:18,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:22:18,312 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:22:18,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:22:18,362 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:22:18,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18 WrapperNode [2020-07-18 00:22:18,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:22:18,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:22:18,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:22:18,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:22:18,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (1/1) ... [2020-07-18 00:22:18,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:22:18,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:22:18,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:22:18,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:22:18,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (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 00:22:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:22:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:22:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-07-18 00:22:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:22:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:22:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:22:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:22:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:22:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:22:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:22:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:22:19,180 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:22:19,180 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-18 00:22:19,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:22:19 BoogieIcfgContainer [2020-07-18 00:22:19,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:22:19,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:22:19,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:22:19,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:22:19,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:22:18" (1/3) ... [2020-07-18 00:22:19,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3018feab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:22:19, skipping insertion in model container [2020-07-18 00:22:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:22:18" (2/3) ... [2020-07-18 00:22:19,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3018feab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:22:19, skipping insertion in model container [2020-07-18 00:22:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:22:19" (3/3) ... [2020-07-18 00:22:19,196 INFO L109 eAbstractionObserver]: Analyzing ICFG test25-2.c [2020-07-18 00:22:19,208 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:22:19,217 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:22:19,232 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:22:19,256 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:22:19,256 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:22:19,256 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:22:19,256 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:22:19,257 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:22:19,257 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:22:19,257 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:22:19,257 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:22:19,272 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-07-18 00:22:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-18 00:22:19,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:22:19,287 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] [2020-07-18 00:22:19,288 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:22:19,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:22:19,295 INFO L82 PathProgramCache]: Analyzing trace with hash 144198137, now seen corresponding path program 1 times [2020-07-18 00:22:19,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:22:19,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031426727] [2020-07-18 00:22:19,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:22:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:22:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:22:19,582 INFO L280 TraceCheckUtils]: 0: Hoare triple {96#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {80#true} is VALID [2020-07-18 00:22:19,583 INFO L280 TraceCheckUtils]: 1: Hoare triple {80#true} #valid := #valid[0 := 0]; {80#true} is VALID [2020-07-18 00:22:19,583 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} assume 0 < #StackHeapBarrier; {80#true} is VALID [2020-07-18 00:22:19,584 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-18 00:22:19,585 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {80#true} {80#true} #110#return; {80#true} is VALID [2020-07-18 00:22:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:22:19,605 INFO L280 TraceCheckUtils]: 0: Hoare triple {80#true} ~pc.base, ~pc.offset := #in~pc.base, #in~pc.offset; {80#true} is VALID [2020-07-18 00:22:19,606 INFO L280 TraceCheckUtils]: 1: Hoare triple {80#true} ~i := #in~i; {80#true} is VALID [2020-07-18 00:22:19,607 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} SUMMARY for call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~pc.base, ~pc.offset, 4); srcloc: L17 {80#true} is VALID [2020-07-18 00:22:19,607 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} SUMMARY for call #t~mem1 := read~int(#t~mem0.base, 4 + #t~mem0.offset, 4); srcloc: L17-1 {80#true} is VALID [2020-07-18 00:22:19,608 INFO L280 TraceCheckUtils]: 4: Hoare triple {80#true} #res := (if #t~mem1 == ~i then 1 else 0); {80#true} is VALID [2020-07-18 00:22:19,608 INFO L280 TraceCheckUtils]: 5: Hoare triple {80#true} havoc #t~mem1; {80#true} is VALID [2020-07-18 00:22:19,608 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#true} havoc #t~mem0.base, #t~mem0.offset; {80#true} is VALID [2020-07-18 00:22:19,609 INFO L280 TraceCheckUtils]: 7: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-18 00:22:19,609 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {80#true} {81#false} #114#return; {81#false} is VALID [2020-07-18 00:22:19,612 INFO L263 TraceCheckUtils]: 0: Hoare triple {80#true} call ULTIMATE.init(); {96#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:22:19,612 INFO L280 TraceCheckUtils]: 1: Hoare triple {96#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {80#true} is VALID [2020-07-18 00:22:19,613 INFO L280 TraceCheckUtils]: 2: Hoare triple {80#true} #valid := #valid[0 := 0]; {80#true} is VALID [2020-07-18 00:22:19,613 INFO L280 TraceCheckUtils]: 3: Hoare triple {80#true} assume 0 < #StackHeapBarrier; {80#true} is VALID [2020-07-18 00:22:19,614 INFO L280 TraceCheckUtils]: 4: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-18 00:22:19,614 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {80#true} {80#true} #110#return; {80#true} is VALID [2020-07-18 00:22:19,615 INFO L263 TraceCheckUtils]: 6: Hoare triple {80#true} call #t~ret13 := main(); {80#true} is VALID [2020-07-18 00:22:19,615 INFO L280 TraceCheckUtils]: 7: Hoare triple {80#true} SUMMARY for call ~#cont~0.base, ~#cont~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {80#true} is VALID [2020-07-18 00:22:19,615 INFO L280 TraceCheckUtils]: 8: Hoare triple {80#true} SUMMARY for call ~#array~0.base, ~#array~0.offset := #Ultimate.allocOnStack(80); srcloc: L22 {80#true} is VALID [2020-07-18 00:22:19,616 INFO L280 TraceCheckUtils]: 9: Hoare triple {80#true} havoc ~i~0; {80#true} is VALID [2020-07-18 00:22:19,616 INFO L280 TraceCheckUtils]: 10: Hoare triple {80#true} havoc ~pa~0.base, ~pa~0.offset; {80#true} is VALID [2020-07-18 00:22:19,617 INFO L280 TraceCheckUtils]: 11: Hoare triple {80#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {80#true} is VALID [2020-07-18 00:22:19,617 INFO L280 TraceCheckUtils]: 12: Hoare triple {80#true} ~i~0 := #t~nondet2; {80#true} is VALID [2020-07-18 00:22:19,618 INFO L280 TraceCheckUtils]: 13: Hoare triple {80#true} havoc #t~nondet2; {80#true} is VALID [2020-07-18 00:22:19,618 INFO L280 TraceCheckUtils]: 14: Hoare triple {80#true} ~j~0 := 0; {80#true} is VALID [2020-07-18 00:22:19,620 INFO L280 TraceCheckUtils]: 15: Hoare triple {80#true} assume !true; {81#false} is VALID [2020-07-18 00:22:19,620 INFO L280 TraceCheckUtils]: 16: Hoare triple {81#false} assume ~i~0 >= 0 && ~i~0 < 10; {81#false} is VALID [2020-07-18 00:22:19,621 INFO L280 TraceCheckUtils]: 17: Hoare triple {81#false} SUMMARY for call write~$Pointer$(~#array~0.base, ~#array~0.offset + 8 * ~i~0, ~#cont~0.base, ~#cont~0.offset, 4); srcloc: L33 {81#false} is VALID [2020-07-18 00:22:19,621 INFO L280 TraceCheckUtils]: 18: Hoare triple {81#false} SUMMARY for call #t~mem6.base, #t~mem6.offset := read~$Pointer$(~#cont~0.base, ~#cont~0.offset, 4); srcloc: L33-1 {81#false} is VALID [2020-07-18 00:22:19,621 INFO L280 TraceCheckUtils]: 19: Hoare triple {81#false} ~pa~0.base, ~pa~0.offset := #t~mem6.base, 4 + #t~mem6.offset; {81#false} is VALID [2020-07-18 00:22:19,622 INFO L280 TraceCheckUtils]: 20: Hoare triple {81#false} havoc #t~mem6.base, #t~mem6.offset; {81#false} is VALID [2020-07-18 00:22:19,622 INFO L280 TraceCheckUtils]: 21: Hoare triple {81#false} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~#cont~0.base, ~#cont~0.offset, 4); srcloc: L35 {81#false} is VALID [2020-07-18 00:22:19,623 INFO L280 TraceCheckUtils]: 22: Hoare triple {81#false} SUMMARY for call #t~mem8 := read~int(#t~mem7.base, 4 + #t~mem7.offset, 4); srcloc: L35-1 {81#false} is VALID [2020-07-18 00:22:19,623 INFO L280 TraceCheckUtils]: 23: Hoare triple {81#false} assume #t~mem8 > 0; {81#false} is VALID [2020-07-18 00:22:19,624 INFO L280 TraceCheckUtils]: 24: Hoare triple {81#false} havoc #t~mem7.base, #t~mem7.offset; {81#false} is VALID [2020-07-18 00:22:19,624 INFO L280 TraceCheckUtils]: 25: Hoare triple {81#false} havoc #t~mem8; {81#false} is VALID [2020-07-18 00:22:19,625 INFO L280 TraceCheckUtils]: 26: Hoare triple {81#false} SUMMARY for call #t~mem9 := read~int(~#array~0.base, 4 + (~#array~0.offset + 8 * ~i~0), 4); srcloc: L36 {81#false} is VALID [2020-07-18 00:22:19,625 INFO L280 TraceCheckUtils]: 27: Hoare triple {81#false} ~i~0 := #t~mem9 - 10; {81#false} is VALID [2020-07-18 00:22:19,625 INFO L280 TraceCheckUtils]: 28: Hoare triple {81#false} havoc #t~mem9; {81#false} is VALID [2020-07-18 00:22:19,626 INFO L280 TraceCheckUtils]: 29: Hoare triple {81#false} assume !true; {81#false} is VALID [2020-07-18 00:22:19,626 INFO L263 TraceCheckUtils]: 30: Hoare triple {81#false} call #t~ret12 := check(~#cont~0.base, ~#cont~0.offset, ~i~0); {80#true} is VALID [2020-07-18 00:22:19,627 INFO L280 TraceCheckUtils]: 31: Hoare triple {80#true} ~pc.base, ~pc.offset := #in~pc.base, #in~pc.offset; {80#true} is VALID [2020-07-18 00:22:19,627 INFO L280 TraceCheckUtils]: 32: Hoare triple {80#true} ~i := #in~i; {80#true} is VALID [2020-07-18 00:22:19,628 INFO L280 TraceCheckUtils]: 33: Hoare triple {80#true} SUMMARY for call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~pc.base, ~pc.offset, 4); srcloc: L17 {80#true} is VALID [2020-07-18 00:22:19,628 INFO L280 TraceCheckUtils]: 34: Hoare triple {80#true} SUMMARY for call #t~mem1 := read~int(#t~mem0.base, 4 + #t~mem0.offset, 4); srcloc: L17-1 {80#true} is VALID [2020-07-18 00:22:19,629 INFO L280 TraceCheckUtils]: 35: Hoare triple {80#true} #res := (if #t~mem1 == ~i then 1 else 0); {80#true} is VALID [2020-07-18 00:22:19,629 INFO L280 TraceCheckUtils]: 36: Hoare triple {80#true} havoc #t~mem1; {80#true} is VALID [2020-07-18 00:22:19,629 INFO L280 TraceCheckUtils]: 37: Hoare triple {80#true} havoc #t~mem0.base, #t~mem0.offset; {80#true} is VALID [2020-07-18 00:22:19,630 INFO L280 TraceCheckUtils]: 38: Hoare triple {80#true} assume true; {80#true} is VALID [2020-07-18 00:22:19,630 INFO L275 TraceCheckUtils]: 39: Hoare quadruple {80#true} {81#false} #114#return; {81#false} is VALID [2020-07-18 00:22:19,631 INFO L280 TraceCheckUtils]: 40: Hoare triple {81#false} assume -2147483648 <= #t~ret12 && #t~ret12 <= 2147483647; {81#false} is VALID [2020-07-18 00:22:19,631 INFO L280 TraceCheckUtils]: 41: Hoare triple {81#false} assume 0 == #t~ret12; {81#false} is VALID [2020-07-18 00:22:19,631 INFO L280 TraceCheckUtils]: 42: Hoare triple {81#false} havoc #t~ret12; {81#false} is VALID [2020-07-18 00:22:19,632 INFO L280 TraceCheckUtils]: 43: Hoare triple {81#false} assume !false; {81#false} is VALID [2020-07-18 00:22:19,646 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 00:22:19,716 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:22:19,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031426727] [2020-07-18 00:22:19,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:22:19,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:22:19,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197532923] [2020-07-18 00:22:19,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-18 00:22:19,733 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:22:19,737 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:22:19,774 WARN L140 InductivityCheck]: Transition 80#true ( _ , assume !false; , 81#false ) not inductive [2020-07-18 00:22:19,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:22:19,775 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:22:19,782 INFO L168 Benchmark]: Toolchain (without parser) took 1707.35 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 103.5 MB in the beginning and 107.2 MB in the end (delta: -3.7 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,783 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.55 ms. Allocated memory is still 145.2 MB. Free memory was 103.1 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,787 INFO L168 Benchmark]: Boogie Preprocessor took 146.20 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 179.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,789 INFO L168 Benchmark]: RCFGBuilder took 675.34 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 145.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,791 INFO L168 Benchmark]: TraceAbstraction took 591.31 ms. Allocated memory is still 201.9 MB. Free memory was 145.0 MB in the beginning and 107.2 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:22:19,804 INFO L336 ainManager$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 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.55 ms. Allocated memory is still 145.2 MB. Free memory was 103.1 MB in the beginning and 92.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.20 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 92.0 MB in the beginning and 179.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 675.34 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 145.0 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 591.31 ms. Allocated memory is still 201.9 MB. Free memory was 145.0 MB in the beginning and 107.2 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 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...