/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/array-fpi/indp5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:47:22,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:47:22,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:47:22,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:47:22,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:47:22,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:47:22,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:47:22,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:47:22,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:47:22,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:47:22,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:47:22,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:47:22,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:47:22,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:47:22,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:47:22,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:47:22,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:47:22,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:47:22,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:47:22,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:47:22,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:47:22,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:47:22,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:47:22,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:47:22,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:47:22,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:47:22,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:47:22,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:47:22,113 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 00:47:22,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:47:22,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:47:22,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:47:22,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:47:22,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:47:22,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:47:22,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:47:22,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:47:22,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:47:22,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:47:22,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:47:22,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:47:22,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:47:22,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:47:22,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:47:22,126 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:47:22,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:47:22,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:47:22,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:47:22,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:47:22,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:47:22,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:47:22,128 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:47:22,443 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:47:22,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:47:22,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:47:22,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:47:22,468 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:47:22,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp5f.c [2020-07-18 00:47:22,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507ef8833/066c6a6a75b943569703355bc4a2d448/FLAGd29beac65 [2020-07-18 00:47:23,030 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:47:23,031 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp5f.c [2020-07-18 00:47:23,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507ef8833/066c6a6a75b943569703355bc4a2d448/FLAGd29beac65 [2020-07-18 00:47:23,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/507ef8833/066c6a6a75b943569703355bc4a2d448 [2020-07-18 00:47:23,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:47:23,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:47:23,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:23,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:47:23,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:47:23,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c43dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23, skipping insertion in model container [2020-07-18 00:47:23,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:47:23,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:47:23,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:23,750 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:47:23,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:23,825 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:47:23,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23 WrapperNode [2020-07-18 00:47:23,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:23,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:47:23,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:47:23,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:47:23,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:23,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:24,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (1/1) ... [2020-07-18 00:47:24,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:47:24,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:47:24,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:47:24,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:47:24,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (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 00:47:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:47:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:47:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:47:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:47:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:47:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:47:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:47:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:47:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:47:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:47:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:47:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:47:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:47:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:47:24,645 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:47:24,645 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-18 00:47:24,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:24 BoogieIcfgContainer [2020-07-18 00:47:24,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:47:24,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:47:24,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:47:24,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:47:24,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:47:23" (1/3) ... [2020-07-18 00:47:24,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1bce3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:24, skipping insertion in model container [2020-07-18 00:47:24,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:23" (2/3) ... [2020-07-18 00:47:24,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1bce3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:24, skipping insertion in model container [2020-07-18 00:47:24,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:24" (3/3) ... [2020-07-18 00:47:24,660 INFO L109 eAbstractionObserver]: Analyzing ICFG indp5f.c [2020-07-18 00:47:24,672 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:47:24,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:47:24,697 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:47:24,720 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:47:24,720 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:47:24,720 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:47:24,721 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:47:24,721 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:47:24,721 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:47:24,721 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:47:24,722 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:47:24,738 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-07-18 00:47:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 00:47:24,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:24,752 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 00:47:24,752 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:24,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1581664836, now seen corresponding path program 1 times [2020-07-18 00:47:24,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:24,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268888112] [2020-07-18 00:47:24,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:25,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {95#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-18 00:47:25,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-18 00:47:25,006 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-18 00:47:25,007 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} ~N~0 := 0; {83#true} is VALID [2020-07-18 00:47:25,007 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 00:47:25,008 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {83#true} {83#true} #149#return; {83#true} is VALID [2020-07-18 00:47:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:25,017 INFO L280 TraceCheckUtils]: 0: Hoare triple {83#true} ~cond := #in~cond; {83#true} is VALID [2020-07-18 00:47:25,017 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} assume !(0 == ~cond); {83#true} is VALID [2020-07-18 00:47:25,018 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 00:47:25,018 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {83#true} {83#true} #145#return; {83#true} is VALID [2020-07-18 00:47:25,020 INFO L263 TraceCheckUtils]: 0: Hoare triple {83#true} call ULTIMATE.init(); {95#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:47:25,021 INFO L280 TraceCheckUtils]: 1: Hoare triple {95#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-18 00:47:25,021 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-18 00:47:25,021 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-18 00:47:25,022 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} ~N~0 := 0; {83#true} is VALID [2020-07-18 00:47:25,022 INFO L280 TraceCheckUtils]: 5: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 00:47:25,023 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {83#true} {83#true} #149#return; {83#true} is VALID [2020-07-18 00:47:25,023 INFO L263 TraceCheckUtils]: 7: Hoare triple {83#true} call #t~ret13 := main(); {83#true} is VALID [2020-07-18 00:47:25,023 INFO L280 TraceCheckUtils]: 8: Hoare triple {83#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {83#true} is VALID [2020-07-18 00:47:25,024 INFO L280 TraceCheckUtils]: 9: Hoare triple {83#true} ~N~0 := #t~nondet0; {83#true} is VALID [2020-07-18 00:47:25,024 INFO L280 TraceCheckUtils]: 10: Hoare triple {83#true} havoc #t~nondet0; {83#true} is VALID [2020-07-18 00:47:25,025 INFO L280 TraceCheckUtils]: 11: Hoare triple {83#true} assume !(~N~0 <= 0); {83#true} is VALID [2020-07-18 00:47:25,025 INFO L263 TraceCheckUtils]: 12: Hoare triple {83#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {83#true} is VALID [2020-07-18 00:47:25,025 INFO L280 TraceCheckUtils]: 13: Hoare triple {83#true} ~cond := #in~cond; {83#true} is VALID [2020-07-18 00:47:25,026 INFO L280 TraceCheckUtils]: 14: Hoare triple {83#true} assume !(0 == ~cond); {83#true} is VALID [2020-07-18 00:47:25,026 INFO L280 TraceCheckUtils]: 15: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 00:47:25,027 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {83#true} {83#true} #145#return; {83#true} is VALID [2020-07-18 00:47:25,027 INFO L280 TraceCheckUtils]: 17: Hoare triple {83#true} havoc ~i~0; {83#true} is VALID [2020-07-18 00:47:25,028 INFO L280 TraceCheckUtils]: 18: Hoare triple {83#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26 {83#true} is VALID [2020-07-18 00:47:25,028 INFO L280 TraceCheckUtils]: 19: Hoare triple {83#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {83#true} is VALID [2020-07-18 00:47:25,028 INFO L280 TraceCheckUtils]: 20: Hoare triple {83#true} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L27 {83#true} is VALID [2020-07-18 00:47:25,029 INFO L280 TraceCheckUtils]: 21: Hoare triple {83#true} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L27-1 {83#true} is VALID [2020-07-18 00:47:25,029 INFO L280 TraceCheckUtils]: 22: Hoare triple {83#true} ~i~0 := 0; {83#true} is VALID [2020-07-18 00:47:25,031 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-18 00:47:25,031 INFO L280 TraceCheckUtils]: 24: Hoare triple {84#false} ~i~0 := 0; {84#false} is VALID [2020-07-18 00:47:25,032 INFO L280 TraceCheckUtils]: 25: Hoare triple {84#false} assume !true; {84#false} is VALID [2020-07-18 00:47:25,032 INFO L280 TraceCheckUtils]: 26: Hoare triple {84#false} ~i~0 := 0; {84#false} is VALID [2020-07-18 00:47:25,032 INFO L280 TraceCheckUtils]: 27: Hoare triple {84#false} assume !(~i~0 < ~N~0); {84#false} is VALID [2020-07-18 00:47:25,033 INFO L280 TraceCheckUtils]: 28: Hoare triple {84#false} ~i~0 := 0; {84#false} is VALID [2020-07-18 00:47:25,033 INFO L280 TraceCheckUtils]: 29: Hoare triple {84#false} assume !(~i~0 < ~N~0); {84#false} is VALID [2020-07-18 00:47:25,034 INFO L280 TraceCheckUtils]: 30: Hoare triple {84#false} ~i~0 := 0; {84#false} is VALID [2020-07-18 00:47:25,034 INFO L280 TraceCheckUtils]: 31: Hoare triple {84#false} assume !true; {84#false} is VALID [2020-07-18 00:47:25,035 INFO L280 TraceCheckUtils]: 32: Hoare triple {84#false} SUMMARY for call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L50-6 {84#false} is VALID [2020-07-18 00:47:25,035 INFO L263 TraceCheckUtils]: 33: Hoare triple {84#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 then 1 else 0)); {84#false} is VALID [2020-07-18 00:47:25,035 INFO L280 TraceCheckUtils]: 34: Hoare triple {84#false} ~cond := #in~cond; {84#false} is VALID [2020-07-18 00:47:25,036 INFO L280 TraceCheckUtils]: 35: Hoare triple {84#false} assume 0 == ~cond; {84#false} is VALID [2020-07-18 00:47:25,036 INFO L280 TraceCheckUtils]: 36: Hoare triple {84#false} assume !false; {84#false} is VALID [2020-07-18 00:47:25,042 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 00:47:25,044 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:25,046 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268888112] [2020-07-18 00:47:25,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:25,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:47:25,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784205755] [2020-07-18 00:47:25,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-18 00:47:25,058 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:25,062 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:47:25,121 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:25,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:47:25,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:25,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:47:25,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:25,133 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states. [2020-07-18 00:47:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:25,596 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2020-07-18 00:47:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:47:25,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-07-18 00:47:25,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2020-07-18 00:47:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2020-07-18 00:47:25,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 166 transitions. [2020-07-18 00:47:25,829 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 166 edges. 166 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:25,846 INFO L225 Difference]: With dead ends: 143 [2020-07-18 00:47:25,846 INFO L226 Difference]: Without dead ends: 68 [2020-07-18 00:47:25,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-18 00:47:25,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-18 00:47:25,952 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:25,953 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 68 states. [2020-07-18 00:47:25,953 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-18 00:47:25,954 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-18 00:47:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:25,961 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-07-18 00:47:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-07-18 00:47:25,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:25,962 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:25,963 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-18 00:47:25,963 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-18 00:47:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:25,970 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-07-18 00:47:25,970 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-07-18 00:47:25,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:25,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:25,971 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:25,972 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-18 00:47:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2020-07-18 00:47:25,978 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 37 [2020-07-18 00:47:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:25,979 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2020-07-18 00:47:25,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:47:25,979 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 68 states and 72 transitions. [2020-07-18 00:47:26,073 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2020-07-18 00:47:26,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 00:47:26,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:26,075 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 00:47:26,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:47:26,076 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:26,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:26,077 INFO L82 PathProgramCache]: Analyzing trace with hash 44636293, now seen corresponding path program 1 times [2020-07-18 00:47:26,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:26,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985675680] [2020-07-18 00:47:26,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:26,262 INFO L280 TraceCheckUtils]: 0: Hoare triple {670#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {656#true} is VALID [2020-07-18 00:47:26,262 INFO L280 TraceCheckUtils]: 1: Hoare triple {656#true} #valid := #valid[0 := 0]; {656#true} is VALID [2020-07-18 00:47:26,263 INFO L280 TraceCheckUtils]: 2: Hoare triple {656#true} assume 0 < #StackHeapBarrier; {656#true} is VALID [2020-07-18 00:47:26,263 INFO L280 TraceCheckUtils]: 3: Hoare triple {656#true} ~N~0 := 0; {656#true} is VALID [2020-07-18 00:47:26,263 INFO L280 TraceCheckUtils]: 4: Hoare triple {656#true} assume true; {656#true} is VALID [2020-07-18 00:47:26,264 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {656#true} {656#true} #149#return; {656#true} is VALID [2020-07-18 00:47:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:26,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {656#true} ~cond := #in~cond; {656#true} is VALID [2020-07-18 00:47:26,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {656#true} assume !(0 == ~cond); {656#true} is VALID [2020-07-18 00:47:26,285 INFO L280 TraceCheckUtils]: 2: Hoare triple {656#true} assume true; {656#true} is VALID [2020-07-18 00:47:26,286 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {656#true} {664#(<= 1 ~N~0)} #145#return; {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,287 INFO L263 TraceCheckUtils]: 0: Hoare triple {656#true} call ULTIMATE.init(); {670#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:47:26,287 INFO L280 TraceCheckUtils]: 1: Hoare triple {670#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {656#true} is VALID [2020-07-18 00:47:26,288 INFO L280 TraceCheckUtils]: 2: Hoare triple {656#true} #valid := #valid[0 := 0]; {656#true} is VALID [2020-07-18 00:47:26,288 INFO L280 TraceCheckUtils]: 3: Hoare triple {656#true} assume 0 < #StackHeapBarrier; {656#true} is VALID [2020-07-18 00:47:26,289 INFO L280 TraceCheckUtils]: 4: Hoare triple {656#true} ~N~0 := 0; {656#true} is VALID [2020-07-18 00:47:26,289 INFO L280 TraceCheckUtils]: 5: Hoare triple {656#true} assume true; {656#true} is VALID [2020-07-18 00:47:26,289 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {656#true} {656#true} #149#return; {656#true} is VALID [2020-07-18 00:47:26,290 INFO L263 TraceCheckUtils]: 7: Hoare triple {656#true} call #t~ret13 := main(); {656#true} is VALID [2020-07-18 00:47:26,290 INFO L280 TraceCheckUtils]: 8: Hoare triple {656#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {656#true} is VALID [2020-07-18 00:47:26,290 INFO L280 TraceCheckUtils]: 9: Hoare triple {656#true} ~N~0 := #t~nondet0; {656#true} is VALID [2020-07-18 00:47:26,291 INFO L280 TraceCheckUtils]: 10: Hoare triple {656#true} havoc #t~nondet0; {656#true} is VALID [2020-07-18 00:47:26,294 INFO L280 TraceCheckUtils]: 11: Hoare triple {656#true} assume !(~N~0 <= 0); {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,294 INFO L263 TraceCheckUtils]: 12: Hoare triple {664#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {656#true} is VALID [2020-07-18 00:47:26,295 INFO L280 TraceCheckUtils]: 13: Hoare triple {656#true} ~cond := #in~cond; {656#true} is VALID [2020-07-18 00:47:26,295 INFO L280 TraceCheckUtils]: 14: Hoare triple {656#true} assume !(0 == ~cond); {656#true} is VALID [2020-07-18 00:47:26,295 INFO L280 TraceCheckUtils]: 15: Hoare triple {656#true} assume true; {656#true} is VALID [2020-07-18 00:47:26,297 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {656#true} {664#(<= 1 ~N~0)} #145#return; {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,298 INFO L280 TraceCheckUtils]: 17: Hoare triple {664#(<= 1 ~N~0)} havoc ~i~0; {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,299 INFO L280 TraceCheckUtils]: 18: Hoare triple {664#(<= 1 ~N~0)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26 {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,303 INFO L280 TraceCheckUtils]: 19: Hoare triple {664#(<= 1 ~N~0)} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,304 INFO L280 TraceCheckUtils]: 20: Hoare triple {664#(<= 1 ~N~0)} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L27 {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,305 INFO L280 TraceCheckUtils]: 21: Hoare triple {664#(<= 1 ~N~0)} SUMMARY for call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L27-1 {664#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:26,306 INFO L280 TraceCheckUtils]: 22: Hoare triple {664#(<= 1 ~N~0)} ~i~0 := 0; {669#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-18 00:47:26,307 INFO L280 TraceCheckUtils]: 23: Hoare triple {669#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {657#false} is VALID [2020-07-18 00:47:26,307 INFO L280 TraceCheckUtils]: 24: Hoare triple {657#false} ~i~0 := 0; {657#false} is VALID [2020-07-18 00:47:26,308 INFO L280 TraceCheckUtils]: 25: Hoare triple {657#false} assume !(~i~0 < ~N~0); {657#false} is VALID [2020-07-18 00:47:26,308 INFO L280 TraceCheckUtils]: 26: Hoare triple {657#false} ~i~0 := 0; {657#false} is VALID [2020-07-18 00:47:26,309 INFO L280 TraceCheckUtils]: 27: Hoare triple {657#false} assume !(~i~0 < ~N~0); {657#false} is VALID [2020-07-18 00:47:26,309 INFO L280 TraceCheckUtils]: 28: Hoare triple {657#false} ~i~0 := 0; {657#false} is VALID [2020-07-18 00:47:26,310 INFO L280 TraceCheckUtils]: 29: Hoare triple {657#false} assume !(~i~0 < ~N~0); {657#false} is VALID [2020-07-18 00:47:26,310 INFO L280 TraceCheckUtils]: 30: Hoare triple {657#false} ~i~0 := 0; {657#false} is VALID [2020-07-18 00:47:26,311 INFO L280 TraceCheckUtils]: 31: Hoare triple {657#false} assume !(~i~0 < ~N~0); {657#false} is VALID [2020-07-18 00:47:26,311 INFO L280 TraceCheckUtils]: 32: Hoare triple {657#false} SUMMARY for call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); srcloc: L50-6 {657#false} is VALID [2020-07-18 00:47:26,312 INFO L263 TraceCheckUtils]: 33: Hoare triple {657#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 then 1 else 0)); {657#false} is VALID [2020-07-18 00:47:26,312 INFO L280 TraceCheckUtils]: 34: Hoare triple {657#false} ~cond := #in~cond; {657#false} is VALID [2020-07-18 00:47:26,314 INFO L280 TraceCheckUtils]: 35: Hoare triple {657#false} assume 0 == ~cond; {657#false} is VALID [2020-07-18 00:47:26,314 INFO L280 TraceCheckUtils]: 36: Hoare triple {657#false} assume !false; {657#false} is VALID [2020-07-18 00:47:26,318 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 00:47:26,323 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:26,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985675680] [2020-07-18 00:47:26,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:26,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:47:26,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751724715] [2020-07-18 00:47:26,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-18 00:47:26,326 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:26,326 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:47:26,382 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:26,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:47:26,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:26,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:47:26,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:47:26,383 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states. [2020-07-18 00:47:27,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:27,035 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2020-07-18 00:47:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:47:27,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-07-18 00:47:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2020-07-18 00:47:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2020-07-18 00:47:27,045 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 150 transitions. [2020-07-18 00:47:27,224 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:27,231 INFO L225 Difference]: With dead ends: 138 [2020-07-18 00:47:27,232 INFO L226 Difference]: Without dead ends: 98 [2020-07-18 00:47:27,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:47:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-18 00:47:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-07-18 00:47:27,364 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:27,365 INFO L82 GeneralOperation]: Start isEquivalent. First operand 98 states. Second operand 73 states. [2020-07-18 00:47:27,365 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 73 states. [2020-07-18 00:47:27,365 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 73 states. [2020-07-18 00:47:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:27,370 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2020-07-18 00:47:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2020-07-18 00:47:27,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:27,373 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:27,373 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 98 states. [2020-07-18 00:47:27,373 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 98 states. [2020-07-18 00:47:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:27,379 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2020-07-18 00:47:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2020-07-18 00:47:27,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:27,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:27,380 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:27,380 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-18 00:47:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-07-18 00:47:27,384 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 37 [2020-07-18 00:47:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:27,385 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-07-18 00:47:27,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:47:27,385 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 77 transitions. [2020-07-18 00:47:27,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:27,485 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-18 00:47:27,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-07-18 00:47:27,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:27,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:47:27,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:47:27,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:27,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:27,489 INFO L82 PathProgramCache]: Analyzing trace with hash -25889220, now seen corresponding path program 1 times [2020-07-18 00:47:27,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:27,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [477998553] [2020-07-18 00:47:27,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:27,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:47:27,527 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:290) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) 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 00:47:27,534 INFO L168 Benchmark]: Toolchain (without parser) took 4076.27 ms. Allocated memory was 145.2 MB in the beginning and 247.5 MB in the end (delta: 102.2 MB). Free memory was 102.8 MB in the beginning and 189.2 MB in the end (delta: -86.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:27,535 INFO L168 Benchmark]: CDTParser took 0.79 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 00:47:27,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.65 ms. Allocated memory is still 145.2 MB. Free memory was 102.3 MB in the beginning and 90.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:27,536 INFO L168 Benchmark]: Boogie Preprocessor took 176.01 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 90.8 MB in the beginning and 177.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:27,537 INFO L168 Benchmark]: RCFGBuilder took 647.99 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 143.5 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:27,538 INFO L168 Benchmark]: TraceAbstraction took 2878.38 ms. Allocated memory was 200.8 MB in the beginning and 247.5 MB in the end (delta: 46.7 MB). Free memory was 142.8 MB in the beginning and 189.2 MB in the end (delta: -46.3 MB). Peak memory consumption was 341.6 kB. Max. memory is 7.1 GB. [2020-07-18 00:47:27,542 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 0.79 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 366.65 ms. Allocated memory is still 145.2 MB. Free memory was 102.3 MB in the beginning and 90.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.01 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 90.8 MB in the beginning and 177.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 647.99 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 143.5 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2878.38 ms. Allocated memory was 200.8 MB in the beginning and 247.5 MB in the end (delta: 46.7 MB). Free memory was 142.8 MB in the beginning and 189.2 MB in the end (delta: -46.3 MB). Peak memory consumption was 341.6 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...