/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/recursive/gcd01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:14:04,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:14:04,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:14:04,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:14:04,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:14:04,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:14:04,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:14:04,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:14:04,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:14:04,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:14:04,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:14:04,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:14:04,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:14:04,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:14:04,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:14:04,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:14:04,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:14:04,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:14:04,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:14:04,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:14:04,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:14:04,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:14:04,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:14:04,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:14:04,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:14:04,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:14:04,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:14:04,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:14:04,806 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 00:14:04,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:14:04,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:14:04,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:14:04,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:14:04,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:14:04,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:14:04,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:14:04,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:14:04,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:14:04,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:14:04,819 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:14:04,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:14:04,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:14:04,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:14:04,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:14:04,820 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:14:04,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:14:04,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:14:04,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:14:04,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:14:04,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:14:04,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:14:04,821 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:14:05,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:14:05,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:14:05,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:14:05,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:14:05,120 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:14:05,121 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/gcd01-1.c [2020-07-18 00:14:05,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f6db34/a7b30e782f5b4ed69daa0b59722b9bd0/FLAGd14647bfd [2020-07-18 00:14:05,606 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:14:05,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/gcd01-1.c [2020-07-18 00:14:05,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f6db34/a7b30e782f5b4ed69daa0b59722b9bd0/FLAGd14647bfd [2020-07-18 00:14:05,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2f6db34/a7b30e782f5b4ed69daa0b59722b9bd0 [2020-07-18 00:14:05,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:14:05,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:14:05,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:05,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:14:05,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:14:05,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:05" (1/1) ... [2020-07-18 00:14:05,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4bcabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:05, skipping insertion in model container [2020-07-18 00:14:05,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:14:05" (1/1) ... [2020-07-18 00:14:06,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:14:06,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:14:06,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:06,197 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:14:06,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:14:06,230 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:14:06,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06 WrapperNode [2020-07-18 00:14:06,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:14:06,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:14:06,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:14:06,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:14:06,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... [2020-07-18 00:14:06,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:14:06,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:14:06,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:14:06,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:14:06,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:14:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:14:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:14:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2020-07-18 00:14:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:14:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:14:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:14:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2020-07-18 00:14:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:14:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:14:06,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:14:06,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:14:06,833 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:14:06,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:06 BoogieIcfgContainer [2020-07-18 00:14:06,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:14:06,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:14:06,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:14:06,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:14:06,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:14:05" (1/3) ... [2020-07-18 00:14:06,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6843b189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:06, skipping insertion in model container [2020-07-18 00:14:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:14:06" (2/3) ... [2020-07-18 00:14:06,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6843b189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:14:06, skipping insertion in model container [2020-07-18 00:14:06,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:14:06" (3/3) ... [2020-07-18 00:14:06,847 INFO L109 eAbstractionObserver]: Analyzing ICFG gcd01-1.c [2020-07-18 00:14:06,858 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:14:06,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:14:06,881 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:14:06,904 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:14:06,904 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:14:06,904 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:14:06,904 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:14:06,905 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:14:06,905 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:14:06,905 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:14:06,905 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:14:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-18 00:14:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-18 00:14:06,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:14:06,935 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] [2020-07-18 00:14:06,935 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:14:06,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:14:06,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1470222128, now seen corresponding path program 1 times [2020-07-18 00:14:06,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:14:06,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959410095] [2020-07-18 00:14:06,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:14:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:07,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-18 00:14:07,200 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {46#true} {46#true} #64#return; {46#true} is VALID [2020-07-18 00:14:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:14:07,296 INFO L280 TraceCheckUtils]: 0: Hoare triple {46#true} ~y1 := #in~y1; {58#(= gcd_~y1 |gcd_#in~y1|)} is VALID [2020-07-18 00:14:07,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(= gcd_~y1 |gcd_#in~y1|)} ~y2 := #in~y2; {59#(and (= gcd_~y1 |gcd_#in~y1|) (= gcd_~y2 |gcd_#in~y2|))} is VALID [2020-07-18 00:14:07,299 INFO L280 TraceCheckUtils]: 2: Hoare triple {59#(and (= gcd_~y1 |gcd_#in~y1|) (= gcd_~y2 |gcd_#in~y2|))} assume ~y1 <= 0 || ~y2 <= 0; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,301 INFO L280 TraceCheckUtils]: 3: Hoare triple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} #res := 0; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,302 INFO L280 TraceCheckUtils]: 4: Hoare triple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} assume true; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,305 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} {51#(and (<= 1 main_~m~0) (<= 1 main_~n~0))} #68#return; {47#false} is VALID [2020-07-18 00:14:07,307 INFO L263 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {46#true} is VALID [2020-07-18 00:14:07,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-18 00:14:07,308 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #64#return; {46#true} is VALID [2020-07-18 00:14:07,308 INFO L263 TraceCheckUtils]: 3: Hoare triple {46#true} call #t~ret5 := main(); {46#true} is VALID [2020-07-18 00:14:07,309 INFO L280 TraceCheckUtils]: 4: Hoare triple {46#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {46#true} is VALID [2020-07-18 00:14:07,309 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} ~m~0 := #t~nondet2; {46#true} is VALID [2020-07-18 00:14:07,310 INFO L280 TraceCheckUtils]: 6: Hoare triple {46#true} havoc #t~nondet2; {46#true} is VALID [2020-07-18 00:14:07,311 INFO L280 TraceCheckUtils]: 7: Hoare triple {46#true} assume !(~m~0 <= 0 || ~m~0 > 2147483647); {50#(<= 1 main_~m~0)} is VALID [2020-07-18 00:14:07,312 INFO L280 TraceCheckUtils]: 8: Hoare triple {50#(<= 1 main_~m~0)} assume -2147483648 <= #t~nondet3 && #t~nondet3 <= 2147483647; {50#(<= 1 main_~m~0)} is VALID [2020-07-18 00:14:07,313 INFO L280 TraceCheckUtils]: 9: Hoare triple {50#(<= 1 main_~m~0)} ~n~0 := #t~nondet3; {50#(<= 1 main_~m~0)} is VALID [2020-07-18 00:14:07,315 INFO L280 TraceCheckUtils]: 10: Hoare triple {50#(<= 1 main_~m~0)} havoc #t~nondet3; {50#(<= 1 main_~m~0)} is VALID [2020-07-18 00:14:07,316 INFO L280 TraceCheckUtils]: 11: Hoare triple {50#(<= 1 main_~m~0)} assume !(~n~0 <= 0 || ~n~0 > 2147483647); {51#(and (<= 1 main_~m~0) (<= 1 main_~n~0))} is VALID [2020-07-18 00:14:07,317 INFO L263 TraceCheckUtils]: 12: Hoare triple {51#(and (<= 1 main_~m~0) (<= 1 main_~n~0))} call #t~ret4 := gcd(~m~0, ~n~0); {46#true} is VALID [2020-07-18 00:14:07,318 INFO L280 TraceCheckUtils]: 13: Hoare triple {46#true} ~y1 := #in~y1; {58#(= gcd_~y1 |gcd_#in~y1|)} is VALID [2020-07-18 00:14:07,319 INFO L280 TraceCheckUtils]: 14: Hoare triple {58#(= gcd_~y1 |gcd_#in~y1|)} ~y2 := #in~y2; {59#(and (= gcd_~y1 |gcd_#in~y1|) (= gcd_~y2 |gcd_#in~y2|))} is VALID [2020-07-18 00:14:07,321 INFO L280 TraceCheckUtils]: 15: Hoare triple {59#(and (= gcd_~y1 |gcd_#in~y1|) (= gcd_~y2 |gcd_#in~y2|))} assume ~y1 <= 0 || ~y2 <= 0; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,322 INFO L280 TraceCheckUtils]: 16: Hoare triple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} #res := 0; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,323 INFO L280 TraceCheckUtils]: 17: Hoare triple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} assume true; {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} is VALID [2020-07-18 00:14:07,325 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {60#(or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0))} {51#(and (<= 1 main_~m~0) (<= 1 main_~n~0))} #68#return; {47#false} is VALID [2020-07-18 00:14:07,326 INFO L280 TraceCheckUtils]: 19: Hoare triple {47#false} assume -2147483648 <= #t~ret4 && #t~ret4 <= 2147483647; {47#false} is VALID [2020-07-18 00:14:07,326 INFO L280 TraceCheckUtils]: 20: Hoare triple {47#false} ~z~0 := #t~ret4; {47#false} is VALID [2020-07-18 00:14:07,327 INFO L280 TraceCheckUtils]: 21: Hoare triple {47#false} havoc #t~ret4; {47#false} is VALID [2020-07-18 00:14:07,327 INFO L280 TraceCheckUtils]: 22: Hoare triple {47#false} assume (~z~0 < 1 && ~m~0 > 0) && ~n~0 > 0; {47#false} is VALID [2020-07-18 00:14:07,328 INFO L280 TraceCheckUtils]: 23: Hoare triple {47#false} assume !false; {47#false} is VALID [2020-07-18 00:14:07,332 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 00:14:07,550 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:14:07,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959410095] [2020-07-18 00:14:07,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:14:07,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-18 00:14:07,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402004041] [2020-07-18 00:14:07,567 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2020-07-18 00:14:07,574 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:14:07,580 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 00:14:07,583 WARN L140 InductivityCheck]: Transition 64#(and (< 0 main_~n~0) (< 0 main_~m~0) (<= 0 (+ main_~z~0 2147483648)) (or (<= |gcd_#in~y2| 0) (<= |gcd_#in~y1| 0)) (< main_~z~0 1)) ( _ , assume !false; , 47#false ) not inductive [2020-07-18 00:14:07,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:14:07,584 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:14:07,593 INFO L168 Benchmark]: Toolchain (without parser) took 1603.78 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 102.2 MB in the beginning and 103.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,596 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.36 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,599 INFO L168 Benchmark]: Boogie Preprocessor took 27.48 ms. Allocated memory is still 137.9 MB. Free memory was 92.0 MB in the beginning and 90.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,601 INFO L168 Benchmark]: RCFGBuilder took 578.66 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.7 MB in the beginning and 158.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,602 INFO L168 Benchmark]: TraceAbstraction took 749.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 103.3 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:14:07,617 INFO L336 ainManager$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 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 241.36 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.48 ms. Allocated memory is still 137.9 MB. Free memory was 92.0 MB in the beginning and 90.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 578.66 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.7 MB in the beginning and 158.6 MB in the end (delta: -67.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 749.58 ms. Allocated memory is still 202.4 MB. Free memory was 157.9 MB in the beginning and 103.3 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 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...