/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/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:21:30,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:21:30,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:21:30,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-18 00:21:30,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:21:30,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:21:30,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:21:30,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:21:30,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:21:30,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:21:30,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:21:30,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:21:30,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:21:30,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:21:30,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:21:30,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:21:30,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:21:30,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:21:30,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:21:30,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:21:30,622 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 00:21:30,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:21:30,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:21:30,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:21:30,653 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:21:30,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:21:30,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:21:30,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:21:30,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:21:30,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:21:30,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:21:30,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:21:30,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:21:30,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:21:30,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:21:30,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:21:30,659 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:21:30,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:21:30,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:21:30,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:21:30,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:21:30,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:21:30,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:21:30,661 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:21:30,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:21:30,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:21:30,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:21:30,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:21:30,954 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:21:30,954 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test05.c [2020-07-18 00:21:31,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90caf601a/d6ae93d185d74be3ac4fb77723aad1c0/FLAG206a0fe18 [2020-07-18 00:21:31,465 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:21:31,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test05.c [2020-07-18 00:21:31,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90caf601a/d6ae93d185d74be3ac4fb77723aad1c0/FLAG206a0fe18 [2020-07-18 00:21:31,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90caf601a/d6ae93d185d74be3ac4fb77723aad1c0 [2020-07-18 00:21:31,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:21:31,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:21:31,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:31,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:21:31,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:21:31,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:31" (1/1) ... [2020-07-18 00:21:31,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196157c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:31, skipping insertion in model container [2020-07-18 00:21:31,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:21:31" (1/1) ... [2020-07-18 00:21:31,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:21:31,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:21:32,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:32,103 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:21:32,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:21:32,144 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:21:32,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32 WrapperNode [2020-07-18 00:21:32,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:21:32,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:21:32,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:21:32,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:21:32,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (1/1) ... [2020-07-18 00:21:32,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:21:32,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:21:32,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:21:32,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:21:32,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (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 00:21:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:21:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:21:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-18 00:21:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-07-18 00:21:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:21:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:21:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-18 00:21:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:21:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:21:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:21:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-07-18 00:21:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:21:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:21:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:21:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:21:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:21:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:21:32,856 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:21:32,857 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:21:32,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:32 BoogieIcfgContainer [2020-07-18 00:21:32,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:21:32,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:21:32,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:21:32,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:21:32,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:21:31" (1/3) ... [2020-07-18 00:21:32,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df5cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:32, skipping insertion in model container [2020-07-18 00:21:32,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:21:32" (2/3) ... [2020-07-18 00:21:32,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df5cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:21:32, skipping insertion in model container [2020-07-18 00:21:32,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:21:32" (3/3) ... [2020-07-18 00:21:32,872 INFO L109 eAbstractionObserver]: Analyzing ICFG test05.c [2020-07-18 00:21:32,883 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:21:32,891 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:21:32,906 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:21:32,937 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:21:32,938 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:21:32,941 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:21:32,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:21:32,941 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:21:32,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:21:32,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:21:32,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:21:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-07-18 00:21:32,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 00:21:32,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:21:32,986 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] [2020-07-18 00:21:32,987 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:21:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:21:32,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1338333096, now seen corresponding path program 1 times [2020-07-18 00:21:33,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:21:33,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493105663] [2020-07-18 00:21:33,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:21:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:33,419 INFO L280 TraceCheckUtils]: 0: Hoare triple {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {84#true} is VALID [2020-07-18 00:21:33,420 INFO L280 TraceCheckUtils]: 1: Hoare triple {84#true} #valid := #valid[0 := 0]; {84#true} is VALID [2020-07-18 00:21:33,420 INFO L280 TraceCheckUtils]: 2: Hoare triple {84#true} assume 0 < #StackHeapBarrier; {84#true} is VALID [2020-07-18 00:21:33,421 INFO L280 TraceCheckUtils]: 3: Hoare triple {84#true} assume true; {84#true} is VALID [2020-07-18 00:21:33,421 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {84#true} {84#true} #90#return; {84#true} is VALID [2020-07-18 00:21:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:21:33,541 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,543 INFO L280 TraceCheckUtils]: 1: Hoare triple {105#(= |f_#in~a| f_~a)} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,543 INFO L280 TraceCheckUtils]: 2: Hoare triple {105#(= |f_#in~a| f_~a)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,545 INFO L280 TraceCheckUtils]: 3: Hoare triple {105#(= |f_#in~a| f_~a)} assume !(4 == ~a); {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,546 INFO L280 TraceCheckUtils]: 4: Hoare triple {106#(not (= 4 |f_#in~a|))} #res := 0; {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,547 INFO L280 TraceCheckUtils]: 5: Hoare triple {106#(not (= 4 |f_#in~a|))} assume true; {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,550 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {106#(not (= 4 |f_#in~a|))} {95#(= 4 |main_#t~mem4|)} #94#return; {85#false} is VALID [2020-07-18 00:21:33,553 INFO L263 TraceCheckUtils]: 0: Hoare triple {84#true} call ULTIMATE.init(); {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:21:33,553 INFO L280 TraceCheckUtils]: 1: Hoare triple {103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {84#true} is VALID [2020-07-18 00:21:33,554 INFO L280 TraceCheckUtils]: 2: Hoare triple {84#true} #valid := #valid[0 := 0]; {84#true} is VALID [2020-07-18 00:21:33,554 INFO L280 TraceCheckUtils]: 3: Hoare triple {84#true} assume 0 < #StackHeapBarrier; {84#true} is VALID [2020-07-18 00:21:33,554 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#true} assume true; {84#true} is VALID [2020-07-18 00:21:33,555 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {84#true} {84#true} #90#return; {84#true} is VALID [2020-07-18 00:21:33,555 INFO L263 TraceCheckUtils]: 6: Hoare triple {84#true} call #t~ret9 := main(); {84#true} is VALID [2020-07-18 00:21:33,556 INFO L280 TraceCheckUtils]: 7: Hoare triple {84#true} SUMMARY for call ~#a~0.base, ~#a~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {84#true} is VALID [2020-07-18 00:21:33,556 INFO L280 TraceCheckUtils]: 8: Hoare triple {84#true} SUMMARY for call ~#b~0.base, ~#b~0.offset := #Ultimate.allocOnStack(4); srcloc: L21 {84#true} is VALID [2020-07-18 00:21:33,557 INFO L280 TraceCheckUtils]: 9: Hoare triple {84#true} SUMMARY for call ~#p1~0.base, ~#p1~0.offset := #Ultimate.allocOnStack(4); srcloc: L21-1 {84#true} is VALID [2020-07-18 00:21:33,557 INFO L280 TraceCheckUtils]: 10: Hoare triple {84#true} SUMMARY for call ~#p2~0.base, ~#p2~0.offset := #Ultimate.allocOnStack(4); srcloc: L22 {84#true} is VALID [2020-07-18 00:21:33,558 INFO L280 TraceCheckUtils]: 11: Hoare triple {84#true} SUMMARY for call write~$Pointer$(~#a~0.base, ~#a~0.offset, ~#p1~0.base, ~#p1~0.offset, 4); srcloc: L22-1 {84#true} is VALID [2020-07-18 00:21:33,558 INFO L280 TraceCheckUtils]: 12: Hoare triple {84#true} SUMMARY for call write~$Pointer$(~#b~0.base, ~#b~0.offset, ~#p2~0.base, ~#p2~0.offset, 4); srcloc: L24 {84#true} is VALID [2020-07-18 00:21:33,558 INFO L280 TraceCheckUtils]: 13: Hoare triple {84#true} SUMMARY for call write~int(1, ~#b~0.base, ~#b~0.offset, 4); srcloc: L25 {84#true} is VALID [2020-07-18 00:21:33,560 INFO L280 TraceCheckUtils]: 14: Hoare triple {84#true} SUMMARY for call write~int(5, ~#a~0.base, ~#a~0.offset, 4); srcloc: L27 {91#(= 5 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:33,562 INFO L280 TraceCheckUtils]: 15: Hoare triple {91#(= 5 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} SUMMARY for call #t~mem2 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L28 {92#(= 5 |main_#t~mem2|)} is VALID [2020-07-18 00:21:33,563 INFO L280 TraceCheckUtils]: 16: Hoare triple {92#(= 5 |main_#t~mem2|)} #t~post3 := #t~mem2; {93#(= 5 |main_#t~post3|)} is VALID [2020-07-18 00:21:33,564 INFO L280 TraceCheckUtils]: 17: Hoare triple {93#(= 5 |main_#t~post3|)} SUMMARY for call write~int(#t~post3 - 1, ~#a~0.base, ~#a~0.offset, 4); srcloc: L30-1 {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:33,566 INFO L280 TraceCheckUtils]: 18: Hoare triple {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} havoc #t~mem2; {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:33,567 INFO L280 TraceCheckUtils]: 19: Hoare triple {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} havoc #t~post3; {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} is VALID [2020-07-18 00:21:33,569 INFO L280 TraceCheckUtils]: 20: Hoare triple {94#(= 4 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))} SUMMARY for call #t~mem4 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L32 {95#(= 4 |main_#t~mem4|)} is VALID [2020-07-18 00:21:33,572 INFO L263 TraceCheckUtils]: 21: Hoare triple {95#(= 4 |main_#t~mem4|)} call #t~ret5 := f(#t~mem4, ~#p1~0.base, ~#p1~0.offset, ~#p2~0.base, ~#p2~0.offset); {104#(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 00:21:33,574 INFO L280 TraceCheckUtils]: 22: Hoare triple {104#(and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|))} ~a := #in~a; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,575 INFO L280 TraceCheckUtils]: 23: Hoare triple {105#(= |f_#in~a| f_~a)} ~p1.base, ~p1.offset := #in~p1.base, #in~p1.offset; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,576 INFO L280 TraceCheckUtils]: 24: Hoare triple {105#(= |f_#in~a| f_~a)} ~p2.base, ~p2.offset := #in~p2.base, #in~p2.offset; {105#(= |f_#in~a| f_~a)} is VALID [2020-07-18 00:21:33,577 INFO L280 TraceCheckUtils]: 25: Hoare triple {105#(= |f_#in~a| f_~a)} assume !(4 == ~a); {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,579 INFO L280 TraceCheckUtils]: 26: Hoare triple {106#(not (= 4 |f_#in~a|))} #res := 0; {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,579 INFO L280 TraceCheckUtils]: 27: Hoare triple {106#(not (= 4 |f_#in~a|))} assume true; {106#(not (= 4 |f_#in~a|))} is VALID [2020-07-18 00:21:33,582 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {106#(not (= 4 |f_#in~a|))} {95#(= 4 |main_#t~mem4|)} #94#return; {85#false} is VALID [2020-07-18 00:21:33,583 INFO L280 TraceCheckUtils]: 29: Hoare triple {85#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {85#false} is VALID [2020-07-18 00:21:33,583 INFO L280 TraceCheckUtils]: 30: Hoare triple {85#false} SUMMARY for call write~int(#t~ret5, ~#a~0.base, ~#a~0.offset, 4); srcloc: L32-3 {85#false} is VALID [2020-07-18 00:21:33,583 INFO L280 TraceCheckUtils]: 31: Hoare triple {85#false} havoc #t~ret5; {85#false} is VALID [2020-07-18 00:21:33,584 INFO L280 TraceCheckUtils]: 32: Hoare triple {85#false} havoc #t~mem4; {85#false} is VALID [2020-07-18 00:21:33,584 INFO L280 TraceCheckUtils]: 33: Hoare triple {85#false} SUMMARY for call #t~mem6 := read~int(~#a~0.base, ~#a~0.offset, 4); srcloc: L34 {85#false} is VALID [2020-07-18 00:21:33,585 INFO L280 TraceCheckUtils]: 34: Hoare triple {85#false} assume 1 != #t~mem6; {85#false} is VALID [2020-07-18 00:21:33,585 INFO L280 TraceCheckUtils]: 35: Hoare triple {85#false} havoc #t~mem6; {85#false} is VALID [2020-07-18 00:21:33,585 INFO L280 TraceCheckUtils]: 36: Hoare triple {85#false} assume !false; {85#false} is VALID [2020-07-18 00:21:33,592 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 00:21:33,756 WARN L860 $PredicateComparison]: unable to prove that (and (not (= 4 |c_f_#in~a|)) (exists ((|v_main_#t~ret5_6| Int)) (and (exists ((|v_#memory_int_27| (Array Int (Array Int Int)))) (= (store |v_#memory_int_27| |c_main_~#a~0.base| (store (select |v_#memory_int_27| |c_main_~#a~0.base|) |c_main_~#a~0.offset| |v_main_#t~ret5_6|)) |c_#memory_int|)) (<= |v_main_#t~ret5_6| 2147483647) (<= 0 (+ |v_main_#t~ret5_6| 2147483648))))) is different from true [2020-07-18 00:21:33,920 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:21:33,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493105663] [2020-07-18 00:21:33,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:21:33,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-07-18 00:21:33,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738212986] [2020-07-18 00:21:33,933 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 37 [2020-07-18 00:21:33,936 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:21:33,941 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-18 00:21:33,978 WARN L140 InductivityCheck]: Transition 112#(and (not (= 4 |f_#in~a|)) (exists ((|v_main_#t~ret5_6| Int)) (and (exists ((|v_#memory_int_27| (Array Int (Array Int Int)))) (= (store |v_#memory_int_27| |main_~#a~0.base| (store (select |v_#memory_int_27| |main_~#a~0.base|) |main_~#a~0.offset| |v_main_#t~ret5_6|)) |#memory_int|)) (<= |v_main_#t~ret5_6| 2147483647) (<= 0 (+ |v_main_#t~ret5_6| 2147483648)))) (not (= 1 (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|)))) ( _ , assume !false; , 85#false ) not inductive [2020-07-18 00:21:33,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:21:33,979 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 00:21:33,988 INFO L168 Benchmark]: Toolchain (without parser) took 2141.45 ms. Allocated memory was 145.2 MB in the beginning and 235.9 MB in the end (delta: 90.7 MB). Free memory was 103.7 MB in the beginning and 175.2 MB in the end (delta: -71.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:33,989 INFO L168 Benchmark]: CDTParser took 0.20 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 00:21:33,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.11 ms. Allocated memory is still 145.2 MB. Free memory was 103.3 MB in the beginning and 92.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:33,993 INFO L168 Benchmark]: Boogie Preprocessor took 133.57 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 92.6 MB in the beginning and 181.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:33,994 INFO L168 Benchmark]: RCFGBuilder took 583.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 144.8 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:33,996 INFO L168 Benchmark]: TraceAbstraction took 1119.23 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 144.1 MB in the beginning and 175.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:21:34,008 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 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 298.11 ms. Allocated memory is still 145.2 MB. Free memory was 103.3 MB in the beginning and 92.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.57 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 92.6 MB in the beginning and 181.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 583.64 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 144.8 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1119.23 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 144.1 MB in the beginning and 175.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 2.0 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...