/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/ms2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:49:22,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:49:22,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:49:22,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:49:22,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:49:22,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:49:22,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:49:22,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:49:22,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:49:22,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:49:22,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:49:22,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:49:22,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:49:22,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:49:22,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:49:22,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:49:22,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:49:22,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:49:22,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:49:22,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:49:22,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:49:22,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:49:22,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:49:22,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:49:22,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:49:22,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:49:22,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:49:22,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:49:22,196 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 22:49:22,229 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:49:22,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:49:22,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:49:22,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:49:22,234 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:49:22,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:49:22,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:49:22,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:49:22,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:49:22,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:49:22,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:49:22,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:49:22,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:49:22,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:49:22,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:49:22,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:49:22,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:49:22,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:49:22,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:49:22,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:49:22,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:49:22,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:49:22,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:49:22,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:49:22,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:49:22,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:49:22,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:49:22,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:49:22,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:49:22,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:49:22,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:49:22,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:49:22,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:49:22,537 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:49:22,537 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:49:22,538 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms2f.c [2020-07-17 22:49:22,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a51fd030/70e82877ca444b63bbca8f44a94c32d5/FLAG5aac89113 [2020-07-17 22:49:23,090 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:49:23,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ms2f.c [2020-07-17 22:49:23,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a51fd030/70e82877ca444b63bbca8f44a94c32d5/FLAG5aac89113 [2020-07-17 22:49:23,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a51fd030/70e82877ca444b63bbca8f44a94c32d5 [2020-07-17 22:49:23,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:49:23,495 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:49:23,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:49:23,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:49:23,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:49:23,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,503 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 22:49:23,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:49:23" (1/1) ... [2020-07-17 22:49:23,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:49:23,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:49:23,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:49:23,746 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:49:23,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:49:23,789 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:49:23,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:49:23 WrapperNode [2020-07-17 22:49:23,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:49:23,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:49:23,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:49:23,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:49:23,883 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 22:49:23,883 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 22:49:23,892 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 22:49:23,893 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 22:49:23,904 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 22:49:23,910 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 22:49:23,911 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 22:49:23,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:49:23,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:49:23,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:49:23,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:49:23,915 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 22:49:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:49:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:49:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:49:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:49:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:49:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:49:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:49:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:49:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:49:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:49:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:49:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:49:23,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:49:24,363 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:49:24,364 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 22:49:24,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:49:24 BoogieIcfgContainer [2020-07-17 22:49:24,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:49:24,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:49:24,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:49:24,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:49:24,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:49:23" (1/3) ... [2020-07-17 22:49:24,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2febf132 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 22:49:24,377 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 22:49:24,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2febf132 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 22:49:24,378 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 22:49:24,380 INFO L109 eAbstractionObserver]: Analyzing ICFG ms2f.c [2020-07-17 22:49:24,395 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:49:24,403 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:49:24,418 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:49:24,446 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:49:24,446 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:49:24,446 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:49:24,447 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:49:24,447 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:49:24,447 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:49:24,447 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:49:24,447 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:49:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-07-17 22:49:24,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:49:24,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:24,477 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 22:49:24,478 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:24,484 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-07-17 22:49:24,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:24,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435992829] [2020-07-17 22:49:24,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,788 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 22:49:24,789 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:49:24,790 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {35#true} {35#true} #72#return; {35#true} is VALID [2020-07-17 22:49:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:24,816 INFO L280 TraceCheckUtils]: 0: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2020-07-17 22:49:24,818 INFO L280 TraceCheckUtils]: 1: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2020-07-17 22:49:24,819 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:49:24,819 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36#false} {35#true} #68#return; {36#false} is VALID [2020-07-17 22:49:24,822 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 22:49:24,822 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 22:49:24,823 INFO L280 TraceCheckUtils]: 2: Hoare triple {35#true} assume true; {35#true} is VALID [2020-07-17 22:49:24,823 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {35#true} {35#true} #72#return; {35#true} is VALID [2020-07-17 22:49:24,824 INFO L263 TraceCheckUtils]: 4: Hoare triple {35#true} call #t~ret7 := main(); {35#true} is VALID [2020-07-17 22:49:24,825 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 22:49:24,825 INFO L280 TraceCheckUtils]: 6: Hoare triple {35#true} assume !(~N~0 <= 0); {35#true} is VALID [2020-07-17 22:49:24,826 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 22:49:24,826 INFO L280 TraceCheckUtils]: 8: Hoare triple {35#true} ~cond := #in~cond; {35#true} is VALID [2020-07-17 22:49:24,829 INFO L280 TraceCheckUtils]: 9: Hoare triple {35#true} assume 0 == ~cond;assume false; {36#false} is VALID [2020-07-17 22:49:24,829 INFO L280 TraceCheckUtils]: 10: Hoare triple {36#false} assume true; {36#false} is VALID [2020-07-17 22:49:24,830 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {36#false} {35#true} #68#return; {36#false} is VALID [2020-07-17 22:49:24,830 INFO L280 TraceCheckUtils]: 12: Hoare triple {36#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(4);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 22:49:24,831 INFO L280 TraceCheckUtils]: 13: Hoare triple {36#false} assume !(~i~0 < ~N~0); {36#false} is VALID [2020-07-17 22:49:24,831 INFO L280 TraceCheckUtils]: 14: Hoare triple {36#false} ~i~0 := 0; {36#false} is VALID [2020-07-17 22:49:24,833 INFO L280 TraceCheckUtils]: 15: Hoare triple {36#false} assume !(~i~0 < ~N~0); {36#false} is VALID [2020-07-17 22:49:24,833 INFO L280 TraceCheckUtils]: 16: Hoare triple {36#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 4); {36#false} is VALID [2020-07-17 22:49:24,834 INFO L263 TraceCheckUtils]: 17: Hoare triple {36#false} call __VERIFIER_assert((if #t~mem6 > ~N~0 then 1 else 0)); {36#false} is VALID [2020-07-17 22:49:24,834 INFO L280 TraceCheckUtils]: 18: Hoare triple {36#false} ~cond := #in~cond; {36#false} is VALID [2020-07-17 22:49:24,835 INFO L280 TraceCheckUtils]: 19: Hoare triple {36#false} assume 0 == ~cond; {36#false} is VALID [2020-07-17 22:49:24,835 INFO L280 TraceCheckUtils]: 20: Hoare triple {36#false} assume !false; {36#false} is VALID [2020-07-17 22:49:24,844 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 22:49:24,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435992829] [2020-07-17 22:49:24,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:49:24,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:49:24,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792266432] [2020-07-17 22:49:24,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:49:24,864 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:49:24,868 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:49:24,937 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 22:49:24,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:49:24,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:49:24,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:49:24,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:49:24,954 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-07-17 22:49:25,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,174 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-07-17 22:49:25,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:49:25,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:49:25,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:49:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:49:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:49:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:49:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2020-07-17 22:49:25,195 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 67 transitions. [2020-07-17 22:49:25,327 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 22:49:25,341 INFO L225 Difference]: With dead ends: 54 [2020-07-17 22:49:25,341 INFO L226 Difference]: Without dead ends: 25 [2020-07-17 22:49:25,345 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 22:49:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-07-17 22:49:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-07-17 22:49:25,408 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:49:25,409 INFO L82 GeneralOperation]: Start isEquivalent. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,410 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,410 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,415 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-07-17 22:49:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:25,416 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:25,417 INFO L74 IsIncluded]: Start isIncluded. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,417 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 25 states. [2020-07-17 22:49:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,435 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-07-17 22:49:25,436 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:25,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:25,437 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:49:25,437 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:49:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-17 22:49:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-07-17 22:49:25,442 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-07-17 22:49:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:49:25,443 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-07-17 22:49:25,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:49:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-07-17 22:49:25,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:49:25,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:25,444 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 22:49:25,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:49:25,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:25,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:25,446 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-07-17 22:49:25,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:25,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258099723] [2020-07-17 22:49:25,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,627 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 22:49:25,628 INFO L280 TraceCheckUtils]: 1: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,628 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {200#true} {200#true} #72#return; {200#true} is VALID [2020-07-17 22:49:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:49:25,638 INFO L280 TraceCheckUtils]: 0: Hoare triple {200#true} ~cond := #in~cond; {200#true} is VALID [2020-07-17 22:49:25,639 INFO L280 TraceCheckUtils]: 1: Hoare triple {200#true} assume !(0 == ~cond); {200#true} is VALID [2020-07-17 22:49:25,639 INFO L280 TraceCheckUtils]: 2: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,640 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {200#true} {205#(<= 1 ~N~0)} #68#return; {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,642 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 22:49:25,643 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 22:49:25,643 INFO L280 TraceCheckUtils]: 2: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,643 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {200#true} {200#true} #72#return; {200#true} is VALID [2020-07-17 22:49:25,644 INFO L263 TraceCheckUtils]: 4: Hoare triple {200#true} call #t~ret7 := main(); {200#true} is VALID [2020-07-17 22:49:25,644 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 22:49:25,645 INFO L280 TraceCheckUtils]: 6: Hoare triple {200#true} assume !(~N~0 <= 0); {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,646 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 22:49:25,646 INFO L280 TraceCheckUtils]: 8: Hoare triple {200#true} ~cond := #in~cond; {200#true} is VALID [2020-07-17 22:49:25,646 INFO L280 TraceCheckUtils]: 9: Hoare triple {200#true} assume !(0 == ~cond); {200#true} is VALID [2020-07-17 22:49:25,647 INFO L280 TraceCheckUtils]: 10: Hoare triple {200#true} assume true; {200#true} is VALID [2020-07-17 22:49:25,648 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {200#true} {205#(<= 1 ~N~0)} #68#return; {205#(<= 1 ~N~0)} is VALID [2020-07-17 22:49:25,651 INFO L280 TraceCheckUtils]: 12: Hoare triple {205#(<= 1 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(4);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 22:49:25,652 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 22:49:25,653 INFO L280 TraceCheckUtils]: 14: Hoare triple {201#false} ~i~0 := 0; {201#false} is VALID [2020-07-17 22:49:25,653 INFO L280 TraceCheckUtils]: 15: Hoare triple {201#false} assume !(~i~0 < ~N~0); {201#false} is VALID [2020-07-17 22:49:25,654 INFO L280 TraceCheckUtils]: 16: Hoare triple {201#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 4); {201#false} is VALID [2020-07-17 22:49:25,654 INFO L263 TraceCheckUtils]: 17: Hoare triple {201#false} call __VERIFIER_assert((if #t~mem6 > ~N~0 then 1 else 0)); {201#false} is VALID [2020-07-17 22:49:25,654 INFO L280 TraceCheckUtils]: 18: Hoare triple {201#false} ~cond := #in~cond; {201#false} is VALID [2020-07-17 22:49:25,654 INFO L280 TraceCheckUtils]: 19: Hoare triple {201#false} assume 0 == ~cond; {201#false} is VALID [2020-07-17 22:49:25,655 INFO L280 TraceCheckUtils]: 20: Hoare triple {201#false} assume !false; {201#false} is VALID [2020-07-17 22:49:25,656 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 22:49:25,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258099723] [2020-07-17 22:49:25,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:49:25,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:49:25,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442759236] [2020-07-17 22:49:25,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:49:25,660 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:49:25,660 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:49:25,694 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 22:49:25,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:49:25,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:49:25,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:49:25,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:49:25,696 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-07-17 22:49:25,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:25,945 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2020-07-17 22:49:25,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 22:49:25,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:49:25,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:49:25,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:49:25,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-17 22:49:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:49:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 46 transitions. [2020-07-17 22:49:25,953 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 46 transitions. [2020-07-17 22:49:26,017 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 22:49:26,019 INFO L225 Difference]: With dead ends: 40 [2020-07-17 22:49:26,020 INFO L226 Difference]: Without dead ends: 30 [2020-07-17 22:49:26,021 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 22:49:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-17 22:49:26,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-07-17 22:49:26,055 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:49:26,056 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,056 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,056 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 28 states. [2020-07-17 22:49:26,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:26,059 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:49:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:49:26,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:26,060 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:26,061 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand 30 states. [2020-07-17 22:49:26,061 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 30 states. [2020-07-17 22:49:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:49:26,064 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-07-17 22:49:26,064 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-07-17 22:49:26,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:49:26,065 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:49:26,065 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:49:26,065 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:49:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-17 22:49:26,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-07-17 22:49:26,068 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2020-07-17 22:49:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:49:26,069 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-07-17 22:49:26,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:49:26,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-07-17 22:49:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 22:49:26,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:49:26,070 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 22:49:26,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:49:26,071 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:49:26,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:49:26,072 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-07-17 22:49:26,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:49:26,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087472744] [2020-07-17 22:49:26,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:49:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:49:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:49:26,172 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:49:26,172 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:49:26,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:49:26,218 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:49:26,219 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:49:26,220 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:49:26,221 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-17 22:49:26,222 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L34-3 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L34-4 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:49:26,223 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:49:26,224 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:49:26,224 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:49:26,224 WARN L170 areAnnotationChecker]: L34-2 has no Hoare annotation [2020-07-17 22:49:26,224 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 22:49:26,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:49:26 BoogieIcfgContainer [2020-07-17 22:49:26,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:49:26,231 INFO L168 Benchmark]: Toolchain (without parser) took 2736.27 ms. Allocated memory was 136.8 MB in the beginning and 231.2 MB in the end (delta: 94.4 MB). Free memory was 100.2 MB in the beginning and 122.0 MB in the end (delta: -21.8 MB). Peak memory consumption was 72.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,232 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.28 ms. Allocated memory is still 136.8 MB. Free memory was 99.8 MB in the beginning and 89.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,234 INFO L168 Benchmark]: Boogie Preprocessor took 123.59 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 89.2 MB in the beginning and 177.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,235 INFO L168 Benchmark]: RCFGBuilder took 454.72 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 154.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,236 INFO L168 Benchmark]: TraceAbstraction took 1857.21 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 153.4 MB in the beginning and 122.0 MB in the end (delta: 31.4 MB). Peak memory consumption was 61.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:49:26,240 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 136.8 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.28 ms. Allocated memory is still 136.8 MB. Free memory was 99.8 MB in the beginning and 89.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.59 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 89.2 MB in the beginning and 177.8 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.72 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 154.0 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1857.21 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 153.4 MB in the beginning and 122.0 MB in the end (delta: 31.4 MB). Peak memory consumption was 61.8 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)=6, 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] int 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 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: 1.7s, 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, 0.0s SatisfiabilityAnalysisTime, 0.4s 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...