/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:49:22,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:49:22,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:49:22,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:49:22,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:49:22,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:49:22,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:49:22,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:49:22,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:49:22,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:49:22,138 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:49:22,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:49:22,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:49:22,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:49:22,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:49:22,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:49:22,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:49:22,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:49:22,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:49:22,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:49:22,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:49:22,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:49:22,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:49:22,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:49:22,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:49:22,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:49:22,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:49:22,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:49:22,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:49:22,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:49:22,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:49:22,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:49:22,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:49:22,181 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:49:22,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:49:22,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:49:22,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:49:22,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:49:22,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:49:22,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:49:22,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:49:22,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:49:22,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:49:22,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:49:22,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:49:22,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:49:22,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:49:22,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:49:22,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:49:22,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:49:22,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:49:22,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:49:22,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:49:22,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:49:22,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:49:22,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:49:22,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:49:22,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:49:22,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:49:22,553 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:49:22,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:49:22,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:49:22,571 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:49:22,572 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:49:22,572 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms3f.c [2020-07-17 22:49:22,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654814ae2/1377bc91240f4268a417131519ff2490/FLAG8e17b0c2b [2020-07-17 22:49:23,133 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:49:23,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ms3f.c [2020-07-17 22:49:23,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654814ae2/1377bc91240f4268a417131519ff2490/FLAG8e17b0c2b [2020-07-17 22:49:23,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/654814ae2/1377bc91240f4268a417131519ff2490 [2020-07-17 22:49:23,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:49:23,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:49:23,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:49:23,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:49:23,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:49:23,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@980e4e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23, skipping insertion in model container [2020-07-17 22:49:23,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:49:23,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:49:23,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:49:23,798 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:49:23,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:49:23,842 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:49:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23 WrapperNode [2020-07-17 22:49:23,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:49:23,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:49:23,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:49:23,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:49:23,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:24,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:24,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:24,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:24,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:49:24,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:49:24,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:49:24,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:49:24,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (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 [2020-07-17 22:49:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:49:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:49:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:49:24,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:49:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:49:24,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:49:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:49:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:49:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:49:24,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:49:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:49:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:49:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:49:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:49:24,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:49:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:49:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:49:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:49:24,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:49:24,508 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:49:24,508 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 22:49:24,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:49:24 BoogieIcfgContainer [2020-07-17 22:49:24,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:49:24,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:49:24,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:49:24,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:49:24,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:49:23" (1/3) ... [2020-07-17 22:49:24,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeba332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:49:24, skipping insertion in model container [2020-07-17 22:49:24,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23" (2/3) ... [2020-07-17 22:49:24,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eeba332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:49:24, skipping insertion in model container [2020-07-17 22:49:24,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:49:24" (3/3) ... [2020-07-17 22:49:24,547 INFO L109 eAbstractionObserver]: Analyzing ICFG ms3f.c [2020-07-17 22:49:24,558 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:49:24,566 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:49:24,582 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:49:24,608 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:49:24,608 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:49:24,609 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:49:24,609 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:49:24,609 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:49:24,609 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:49:24,610 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:49:24,610 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:49:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-07-17 22:49:24,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:49:24,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:24,637 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] [2020-07-17 22:49:24,638 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:24,645 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-07-17 22:49:24,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:24,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575774625] [2020-07-17 22:49:24,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,909 INFO L280 TraceCheckUtils]: 0: Hoare triple {44#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {35#true} is VALID [2020-07-17 22:49:24,909 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:49:24,910 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} #72#return; {35#true} is VALID [2020-07-17 22:49:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,922 INFO L280 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2020-07-17 22:49:24,924 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2020-07-17 22:49:24,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:49:24,925 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36#false} {35#true} #68#return; {36#false} is VALID [2020-07-17 22:49:24,927 INFO L263 TraceCheckUtils]: 0: Hoare triple {35#true} call ULTIMATE.init(); {44#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:49:24,928 INFO L280 TraceCheckUtils]: 1: Hoare triple {44#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {35#true} is VALID [2020-07-17 22:49:24,928 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:49:24,929 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #72#return; {35#true} is VALID [2020-07-17 22:49:24,929 INFO L263 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret7 := main(); {35#true} is VALID [2020-07-17 22:49:24,930 INFO L280 TraceCheckUtils]: 5: Hoare triple {35#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {35#true} is VALID [2020-07-17 22:49:24,930 INFO L280 TraceCheckUtils]: 6: Hoare triple {35#true} assume !(~N~0 <= 0); {35#true} is VALID [2020-07-17 22:49:24,931 INFO L263 TraceCheckUtils]: 7: Hoare triple {35#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {35#true} is VALID [2020-07-17 22:49:24,931 INFO L280 TraceCheckUtils]: 8: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2020-07-17 22:49:24,932 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2020-07-17 22:49:24,933 INFO L280 TraceCheckUtils]: 10: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:49:24,933 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {36#false} {35#true} #68#return; {36#false} is VALID [2020-07-17 22:49:24,934 INFO L280 TraceCheckUtils]: 12: Hoare triple {36#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {36#false} is VALID [2020-07-17 22:49:24,934 INFO L280 TraceCheckUtils]: 13: Hoare triple {36#false} assume !(~i~0 < ~N~0); {36#false} is VALID [2020-07-17 22:49:24,935 INFO L280 TraceCheckUtils]: 14: Hoare triple {36#false} ~i~0 := 0; {36#false} is VALID [2020-07-17 22:49:24,935 INFO L280 TraceCheckUtils]: 15: Hoare triple {36#false} assume !(~i~0 < ~N~0); {36#false} is VALID [2020-07-17 22:49:24,936 INFO L280 TraceCheckUtils]: 16: Hoare triple {36#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {36#false} is VALID [2020-07-17 22:49:24,936 INFO L263 TraceCheckUtils]: 17: Hoare triple {36#false} call __VERIFIER_assert((if #t~mem6 > 2 * ~N~0 then 1 else 0)); {36#false} is VALID [2020-07-17 22:49:24,936 INFO L280 TraceCheckUtils]: 18: Hoare triple {36#false} ~cond := #in~cond; {36#false} is VALID [2020-07-17 22:49:24,937 INFO L280 TraceCheckUtils]: 19: Hoare triple {36#false} assume 0 == ~cond; {36#false} is VALID [2020-07-17 22:49:24,937 INFO L280 TraceCheckUtils]: 20: Hoare triple {36#false} assume !false; {36#false} is VALID [2020-07-17 22:49:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:49:24,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575774625] [2020-07-17 22:49:24,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:49:24,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:49:24,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936509147] [2020-07-17 22:49:24,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:49:24,956 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:49:24,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:49:25,013 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:49:25,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:49:25,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:49:25,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:49:25,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:49:25,030 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-07-17 22:49:25,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,237 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-07-17 22:49:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:49:25,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:49:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:49:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:49:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:49:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:49:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:49:25,257 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 67 transitions. [2020-07-17 22:49:25,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:49:25,417 INFO L225 Difference]: With dead ends: 54 [2020-07-17 22:49:25,418 INFO L226 Difference]: Without dead ends: 25 [2020-07-17 22:49:25,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:49:25,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-17 22:49:25,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-17 22:49:25,504 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:49:25,505 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,506 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,506 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,511 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-07-17 22:49:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:25,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:25,513 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,513 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,518 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-07-17 22:49:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:25,519 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:25,519 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:49:25,519 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:49:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 22:49:25,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-07-17 22:49:25,525 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-07-17 22:49:25,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:49:25,525 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-07-17 22:49:25,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:49:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:49:25,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:25,527 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] [2020-07-17 22:49:25,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:49:25,528 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-07-17 22:49:25,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:25,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944053103] [2020-07-17 22:49:25,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,655 INFO L280 TraceCheckUtils]: 0: Hoare triple {211#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {200#true} is VALID [2020-07-17 22:49:25,655 INFO L280 TraceCheckUtils]: 1: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,656 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {200#true} {200#true} #72#return; {200#true} is VALID [2020-07-17 22:49:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,666 INFO L280 TraceCheckUtils]: 0: Hoare triple {200#true} ~cond := #in~cond; {200#true} is VALID [2020-07-17 22:49:25,667 INFO L280 TraceCheckUtils]: 1: Hoare triple {200#true} assume !(0 == ~cond); {200#true} is VALID [2020-07-17 22:49:25,667 INFO L280 TraceCheckUtils]: 2: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,669 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {200#true} {205#(<= 1 ~N~0)} #68#return; {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,670 INFO L263 TraceCheckUtils]: 0: Hoare triple {200#true} call ULTIMATE.init(); {211#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:49:25,671 INFO L280 TraceCheckUtils]: 1: Hoare triple {211#(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;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {200#true} is VALID [2020-07-17 22:49:25,671 INFO L280 TraceCheckUtils]: 2: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,671 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {200#true} {200#true} #72#return; {200#true} is VALID [2020-07-17 22:49:25,672 INFO L263 TraceCheckUtils]: 4: Hoare triple {200#true} call #t~ret7 := main(); {200#true} is VALID [2020-07-17 22:49:25,672 INFO L280 TraceCheckUtils]: 5: Hoare triple {200#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {200#true} is VALID [2020-07-17 22:49:25,673 INFO L280 TraceCheckUtils]: 6: Hoare triple {200#true} assume !(~N~0 <= 0); {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,674 INFO L263 TraceCheckUtils]: 7: Hoare triple {205#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {200#true} is VALID [2020-07-17 22:49:25,674 INFO L280 TraceCheckUtils]: 8: Hoare triple {200#true} ~cond := #in~cond; {200#true} is VALID [2020-07-17 22:49:25,674 INFO L280 TraceCheckUtils]: 9: Hoare triple {200#true} assume !(0 == ~cond); {200#true} is VALID [2020-07-17 22:49:25,675 INFO L280 TraceCheckUtils]: 10: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,676 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {200#true} {205#(<= 1 ~N~0)} #68#return; {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,678 INFO L280 TraceCheckUtils]: 12: Hoare triple {205#(<= 1 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {210#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-17 22:49:25,679 INFO L280 TraceCheckUtils]: 13: Hoare triple {210#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {201#false} is VALID [2020-07-17 22:49:25,679 INFO L280 TraceCheckUtils]: 14: Hoare triple {201#false} ~i~0 := 0; {201#false} is VALID [2020-07-17 22:49:25,680 INFO L280 TraceCheckUtils]: 15: Hoare triple {201#false} assume !(~i~0 < ~N~0); {201#false} is VALID [2020-07-17 22:49:25,680 INFO L280 TraceCheckUtils]: 16: Hoare triple {201#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {201#false} is VALID [2020-07-17 22:49:25,680 INFO L263 TraceCheckUtils]: 17: Hoare triple {201#false} call __VERIFIER_assert((if #t~mem6 > 2 * ~N~0 then 1 else 0)); {201#false} is VALID [2020-07-17 22:49:25,681 INFO L280 TraceCheckUtils]: 18: Hoare triple {201#false} ~cond := #in~cond; {201#false} is VALID [2020-07-17 22:49:25,681 INFO L280 TraceCheckUtils]: 19: Hoare triple {201#false} assume 0 == ~cond; {201#false} is VALID [2020-07-17 22:49:25,681 INFO L280 TraceCheckUtils]: 20: Hoare triple {201#false} assume !false; {201#false} is VALID [2020-07-17 22:49:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:49:25,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944053103] [2020-07-17 22:49:25,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:49:25,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:49:25,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018721331] [2020-07-17 22:49:25,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:49:25,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:49:25,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:49:25,736 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:49:25,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:49:25,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:49:25,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:49:25,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:49:25,738 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-07-17 22:49:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:26,026 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2020-07-17 22:49:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 22:49:26,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:49:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:49:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:49:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-17 22:49:26,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:49:26,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-17 22:49:26,033 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 46 transitions. [2020-07-17 22:49:26,105 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:49:26,107 INFO L225 Difference]: With dead ends: 40 [2020-07-17 22:49:26,107 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 22:49:26,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:49:26,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 22:49:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-07-17 22:49:26,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:49:26,142 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,143 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,143 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:26,146 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:49:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:49:26,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:26,147 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:26,148 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 30 states. [2020-07-17 22:49:26,148 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 30 states. [2020-07-17 22:49:26,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:26,151 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:49:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:49:26,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:26,152 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:26,153 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:49:26,153 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:49:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-17 22:49:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-07-17 22:49:26,156 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-07-17 22:49:26,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:49:26,156 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-07-17 22:49:26,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:49:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-07-17 22:49:26,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 22:49:26,158 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:26,158 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] [2020-07-17 22:49:26,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:49:26,159 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:26,159 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-07-17 22:49:26,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:26,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518203267] [2020-07-17 22:49:26,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:49:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:49:26,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:49:26,276 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:49:26,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:49:26,311 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:49:26,311 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:49:26,312 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:49:26,313 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:49:26,314 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,315 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,316 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:49:26,317 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-17 22:49:26,317 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:49:26,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:49:26 BoogieIcfgContainer [2020-07-17 22:49:26,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:49:26,323 INFO L168 Benchmark]: Toolchain (without parser) took 2767.32 ms. Allocated memory was 145.8 MB in the beginning and 233.8 MB in the end (delta: 88.1 MB). Free memory was 103.4 MB in the beginning and 119.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,324 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.67 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 92.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,326 INFO L168 Benchmark]: Boogie Preprocessor took 178.35 ms. Allocated memory was 145.8 MB in the beginning and 198.7 MB in the end (delta: 53.0 MB). Free memory was 92.2 MB in the beginning and 175.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,327 INFO L168 Benchmark]: RCFGBuilder took 508.36 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 151.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,328 INFO L168 Benchmark]: TraceAbstraction took 1787.73 ms. Allocated memory was 198.7 MB in the beginning and 233.8 MB in the end (delta: 35.1 MB). Free memory was 151.5 MB in the beginning and 119.6 MB in the end (delta: 31.9 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,332 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 0.23 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.67 ms. Allocated memory is still 145.8 MB. Free memory was 103.0 MB in the beginning and 92.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.35 ms. Allocated memory was 145.8 MB in the beginning and 198.7 MB in the end (delta: 53.0 MB). Free memory was 92.2 MB in the beginning and 175.5 MB in the end (delta: -83.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 508.36 ms. Allocated memory is still 198.7 MB. Free memory was 175.5 MB in the beginning and 151.5 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1787.73 ms. Allocated memory was 198.7 MB in the beginning and 233.8 MB in the end (delta: 35.1 MB). Free memory was 151.5 MB in the beginning and 119.6 MB in the end (delta: 31.9 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=10, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={2:0}] [L29] COND TRUE i 2*N) VAL [\old(cond)=0, \old(N)=0, N=1] [L13] COND TRUE !(cond) VAL [\old(cond)=0, \old(N)=0, cond=0, N=1] [L13] __VERIFIER_error() VAL [\old(cond)=0, \old(N)=0, cond=0, N=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 34 SDslu, 15 SDs, 0 SdLazy, 66 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 1480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...