/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/s12iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:26:44,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:26:44,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:26:44,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:26:44,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:26:44,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:26:44,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:26:44,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:26:44,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:26:44,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:26:44,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:26:44,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:26:44,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:26:44,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:26:44,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:26:44,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:26:44,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:26:44,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:26:44,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:26:44,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:26:44,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:26:44,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:26:44,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:26:44,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:26:44,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:26:44,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:26:44,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:26:44,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:26:44,310 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 [2020-07-10 15:26:44,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:26:44,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:26:44,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:26:44,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:26:44,330 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:26:44,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:26:44,331 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:26:44,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:26:44,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:26:44,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:26:44,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:26:44,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:26:44,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:26:44,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:26:44,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:26:44,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:26:44,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:26:44,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:26:44,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:26:44,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:26:44,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:26:44,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:26:44,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:26:44,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:26:44,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:26:44,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:26:44,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:26:44,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:26:44,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:26:44,658 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:26:44,659 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s12iff.c [2020-07-10 15:26:44,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98f9dfc1/32b86e07c040412fb17929d1b3765469/FLAGe7624fbae [2020-07-10 15:26:45,301 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:26:45,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s12iff.c [2020-07-10 15:26:45,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98f9dfc1/32b86e07c040412fb17929d1b3765469/FLAGe7624fbae [2020-07-10 15:26:45,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98f9dfc1/32b86e07c040412fb17929d1b3765469 [2020-07-10 15:26:45,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:26:45,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:26:45,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:45,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:26:45,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:26:45,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:45" (1/1) ... [2020-07-10 15:26:45,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2f0278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:45, skipping insertion in model container [2020-07-10 15:26:45,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:45" (1/1) ... [2020-07-10 15:26:45,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:26:45,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:26:45,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:45,979 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:26:46,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:46,028 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:26:46,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46 WrapperNode [2020-07-10 15:26:46,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:46,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:26:46,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:26:46,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:26:46,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (1/1) ... [2020-07-10 15:26:46,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:26:46,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:26:46,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:26:46,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:26:46,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (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 [2020-07-10 15:26:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:26:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:26:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:26:46,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:26:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:26:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:26:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:26:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:26:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:26:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:26:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:26:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:26:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:26:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:26:46,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:26:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:26:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:26:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:26:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:26:46,757 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:26:46,757 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-10 15:26:46,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:46 BoogieIcfgContainer [2020-07-10 15:26:46,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:26:46,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:26:46,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:26:46,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:26:46,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:26:45" (1/3) ... [2020-07-10 15:26:46,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c34de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:46, skipping insertion in model container [2020-07-10 15:26:46,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:46" (2/3) ... [2020-07-10 15:26:46,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c34de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:46, skipping insertion in model container [2020-07-10 15:26:46,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:46" (3/3) ... [2020-07-10 15:26:46,774 INFO L109 eAbstractionObserver]: Analyzing ICFG s12iff.c [2020-07-10 15:26:46,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:26:46,813 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:26:46,841 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:26:46,879 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:26:46,879 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:26:46,880 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:26:46,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:26:46,880 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:26:46,880 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:26:46,880 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:26:46,880 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:26:46,901 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-07-10 15:26:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-10 15:26:46,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:46,911 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] [2020-07-10 15:26:46,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:46,920 INFO L82 PathProgramCache]: Analyzing trace with hash 2033030480, now seen corresponding path program 1 times [2020-07-10 15:26:46,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:46,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335615818] [2020-07-10 15:26:46,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:47,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {48#(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; {39#true} is VALID [2020-07-10 15:26:47,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {39#true} assume true; {39#true} is VALID [2020-07-10 15:26:47,200 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {39#true} {39#true} #91#return; {39#true} is VALID [2020-07-10 15:26:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:47,215 INFO L280 TraceCheckUtils]: 0: Hoare triple {39#true} ~cond := #in~cond; {39#true} is VALID [2020-07-10 15:26:47,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {39#true} assume 0 == ~cond;assume false; {40#false} is VALID [2020-07-10 15:26:47,216 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#false} assume true; {40#false} is VALID [2020-07-10 15:26:47,217 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {40#false} {39#true} #87#return; {40#false} is VALID [2020-07-10 15:26:47,220 INFO L263 TraceCheckUtils]: 0: Hoare triple {39#true} call ULTIMATE.init(); {48#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:47,220 INFO L280 TraceCheckUtils]: 1: Hoare triple {48#(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; {39#true} is VALID [2020-07-10 15:26:47,221 INFO L280 TraceCheckUtils]: 2: Hoare triple {39#true} assume true; {39#true} is VALID [2020-07-10 15:26:47,221 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {39#true} {39#true} #91#return; {39#true} is VALID [2020-07-10 15:26:47,222 INFO L263 TraceCheckUtils]: 4: Hoare triple {39#true} call #t~ret14 := main(); {39#true} is VALID [2020-07-10 15:26:47,222 INFO L280 TraceCheckUtils]: 5: Hoare triple {39#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {39#true} is VALID [2020-07-10 15:26:47,223 INFO L280 TraceCheckUtils]: 6: Hoare triple {39#true} assume !(~N~0 <= 0); {39#true} is VALID [2020-07-10 15:26:47,223 INFO L263 TraceCheckUtils]: 7: Hoare triple {39#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {39#true} is VALID [2020-07-10 15:26:47,224 INFO L280 TraceCheckUtils]: 8: Hoare triple {39#true} ~cond := #in~cond; {39#true} is VALID [2020-07-10 15:26:47,225 INFO L280 TraceCheckUtils]: 9: Hoare triple {39#true} assume 0 == ~cond;assume false; {40#false} is VALID [2020-07-10 15:26:47,226 INFO L280 TraceCheckUtils]: 10: Hoare triple {40#false} assume true; {40#false} is VALID [2020-07-10 15:26:47,226 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {40#false} {39#true} #87#return; {40#false} is VALID [2020-07-10 15:26:47,227 INFO L280 TraceCheckUtils]: 12: Hoare triple {40#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;call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {40#false} is VALID [2020-07-10 15:26:47,227 INFO L280 TraceCheckUtils]: 13: Hoare triple {40#false} assume !(~i~0 < ~N~0); {40#false} is VALID [2020-07-10 15:26:47,228 INFO L280 TraceCheckUtils]: 14: Hoare triple {40#false} ~i~0 := 0; {40#false} is VALID [2020-07-10 15:26:47,228 INFO L280 TraceCheckUtils]: 15: Hoare triple {40#false} assume !(~i~0 < ~N~0); {40#false} is VALID [2020-07-10 15:26:47,228 INFO L280 TraceCheckUtils]: 16: Hoare triple {40#false} ~i~0 := 0; {40#false} is VALID [2020-07-10 15:26:47,229 INFO L280 TraceCheckUtils]: 17: Hoare triple {40#false} assume !true; {40#false} is VALID [2020-07-10 15:26:47,229 INFO L280 TraceCheckUtils]: 18: Hoare triple {40#false} call #t~mem13 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {40#false} is VALID [2020-07-10 15:26:47,230 INFO L263 TraceCheckUtils]: 19: Hoare triple {40#false} call __VERIFIER_assert((if #t~mem13 == 2 * ~N~0 then 1 else 0)); {40#false} is VALID [2020-07-10 15:26:47,230 INFO L280 TraceCheckUtils]: 20: Hoare triple {40#false} ~cond := #in~cond; {40#false} is VALID [2020-07-10 15:26:47,231 INFO L280 TraceCheckUtils]: 21: Hoare triple {40#false} assume 0 == ~cond; {40#false} is VALID [2020-07-10 15:26:47,231 INFO L280 TraceCheckUtils]: 22: Hoare triple {40#false} assume !false; {40#false} is VALID [2020-07-10 15:26:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:26:47,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335615818] [2020-07-10 15:26:47,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:47,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:26:47,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126205423] [2020-07-10 15:26:47,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 15:26:47,251 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:47,255 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:26:47,307 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:47,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:26:47,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:47,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:26:47,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:47,323 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 3 states. [2020-07-10 15:26:47,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:47,587 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2020-07-10 15:26:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:26:47,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 15:26:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2020-07-10 15:26:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2020-07-10 15:26:47,609 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 81 transitions. [2020-07-10 15:26:47,799 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:47,814 INFO L225 Difference]: With dead ends: 62 [2020-07-10 15:26:47,814 INFO L226 Difference]: Without dead ends: 29 [2020-07-10 15:26:47,819 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 [2020-07-10 15:26:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-07-10 15:26:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-07-10 15:26:47,879 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:47,880 INFO L82 GeneralOperation]: Start isEquivalent. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:47,881 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:47,881 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:47,886 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2020-07-10 15:26:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-07-10 15:26:47,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:47,887 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:47,888 INFO L74 IsIncluded]: Start isIncluded. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:47,888 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 29 states. [2020-07-10 15:26:47,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:47,893 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2020-07-10 15:26:47,893 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-07-10 15:26:47,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:47,894 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:47,894 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:47,894 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-10 15:26:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-07-10 15:26:47,899 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 23 [2020-07-10 15:26:47,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:47,900 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-07-10 15:26:47,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:26:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-07-10 15:26:47,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-10 15:26:47,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:47,902 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] [2020-07-10 15:26:47,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:26:47,902 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:47,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:47,903 INFO L82 PathProgramCache]: Analyzing trace with hash 706992569, now seen corresponding path program 1 times [2020-07-10 15:26:47,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:47,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945858092] [2020-07-10 15:26:47,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:48,041 INFO L280 TraceCheckUtils]: 0: Hoare triple {238#(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; {227#true} is VALID [2020-07-10 15:26:48,042 INFO L280 TraceCheckUtils]: 1: Hoare triple {227#true} assume true; {227#true} is VALID [2020-07-10 15:26:48,042 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {227#true} {227#true} #91#return; {227#true} is VALID [2020-07-10 15:26:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:48,053 INFO L280 TraceCheckUtils]: 0: Hoare triple {227#true} ~cond := #in~cond; {227#true} is VALID [2020-07-10 15:26:48,054 INFO L280 TraceCheckUtils]: 1: Hoare triple {227#true} assume !(0 == ~cond); {227#true} is VALID [2020-07-10 15:26:48,054 INFO L280 TraceCheckUtils]: 2: Hoare triple {227#true} assume true; {227#true} is VALID [2020-07-10 15:26:48,055 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {227#true} {232#(<= 1 ~N~0)} #87#return; {232#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:48,057 INFO L263 TraceCheckUtils]: 0: Hoare triple {227#true} call ULTIMATE.init(); {238#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:48,058 INFO L280 TraceCheckUtils]: 1: Hoare triple {238#(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; {227#true} is VALID [2020-07-10 15:26:48,058 INFO L280 TraceCheckUtils]: 2: Hoare triple {227#true} assume true; {227#true} is VALID [2020-07-10 15:26:48,058 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {227#true} {227#true} #91#return; {227#true} is VALID [2020-07-10 15:26:48,059 INFO L263 TraceCheckUtils]: 4: Hoare triple {227#true} call #t~ret14 := main(); {227#true} is VALID [2020-07-10 15:26:48,059 INFO L280 TraceCheckUtils]: 5: Hoare triple {227#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {227#true} is VALID [2020-07-10 15:26:48,060 INFO L280 TraceCheckUtils]: 6: Hoare triple {227#true} assume !(~N~0 <= 0); {232#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:48,061 INFO L263 TraceCheckUtils]: 7: Hoare triple {232#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {227#true} is VALID [2020-07-10 15:26:48,061 INFO L280 TraceCheckUtils]: 8: Hoare triple {227#true} ~cond := #in~cond; {227#true} is VALID [2020-07-10 15:26:48,061 INFO L280 TraceCheckUtils]: 9: Hoare triple {227#true} assume !(0 == ~cond); {227#true} is VALID [2020-07-10 15:26:48,062 INFO L280 TraceCheckUtils]: 10: Hoare triple {227#true} assume true; {227#true} is VALID [2020-07-10 15:26:48,063 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {227#true} {232#(<= 1 ~N~0)} #87#return; {232#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:48,065 INFO L280 TraceCheckUtils]: 12: Hoare triple {232#(<= 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;call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {237#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-10 15:26:48,066 INFO L280 TraceCheckUtils]: 13: Hoare triple {237#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {228#false} is VALID [2020-07-10 15:26:48,067 INFO L280 TraceCheckUtils]: 14: Hoare triple {228#false} ~i~0 := 0; {228#false} is VALID [2020-07-10 15:26:48,067 INFO L280 TraceCheckUtils]: 15: Hoare triple {228#false} assume !(~i~0 < ~N~0); {228#false} is VALID [2020-07-10 15:26:48,067 INFO L280 TraceCheckUtils]: 16: Hoare triple {228#false} ~i~0 := 0; {228#false} is VALID [2020-07-10 15:26:48,068 INFO L280 TraceCheckUtils]: 17: Hoare triple {228#false} assume !(~i~0 < ~N~0); {228#false} is VALID [2020-07-10 15:26:48,068 INFO L280 TraceCheckUtils]: 18: Hoare triple {228#false} call #t~mem13 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {228#false} is VALID [2020-07-10 15:26:48,069 INFO L263 TraceCheckUtils]: 19: Hoare triple {228#false} call __VERIFIER_assert((if #t~mem13 == 2 * ~N~0 then 1 else 0)); {228#false} is VALID [2020-07-10 15:26:48,069 INFO L280 TraceCheckUtils]: 20: Hoare triple {228#false} ~cond := #in~cond; {228#false} is VALID [2020-07-10 15:26:48,069 INFO L280 TraceCheckUtils]: 21: Hoare triple {228#false} assume 0 == ~cond; {228#false} is VALID [2020-07-10 15:26:48,069 INFO L280 TraceCheckUtils]: 22: Hoare triple {228#false} assume !false; {228#false} is VALID [2020-07-10 15:26:48,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:26:48,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945858092] [2020-07-10 15:26:48,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:48,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:26:48,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997754232] [2020-07-10 15:26:48,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-10 15:26:48,075 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:48,075 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:26:48,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:48,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:26:48,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:48,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:26:48,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:26:48,120 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 5 states. [2020-07-10 15:26:48,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:48,457 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-07-10 15:26:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:26:48,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-07-10 15:26:48,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:48,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions. [2020-07-10 15:26:48,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:48,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions. [2020-07-10 15:26:48,467 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 63 transitions. [2020-07-10 15:26:48,579 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:48,582 INFO L225 Difference]: With dead ends: 51 [2020-07-10 15:26:48,582 INFO L226 Difference]: Without dead ends: 37 [2020-07-10 15:26:48,584 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 [2020-07-10 15:26:48,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-07-10 15:26:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2020-07-10 15:26:48,616 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:48,617 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 32 states. [2020-07-10 15:26:48,617 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 32 states. [2020-07-10 15:26:48,617 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 32 states. [2020-07-10 15:26:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:48,621 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2020-07-10 15:26:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2020-07-10 15:26:48,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:48,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:48,623 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 37 states. [2020-07-10 15:26:48,623 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 37 states. [2020-07-10 15:26:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:48,627 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2020-07-10 15:26:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2020-07-10 15:26:48,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:48,628 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:48,628 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:48,628 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-10 15:26:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2020-07-10 15:26:48,632 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2020-07-10 15:26:48,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:48,632 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2020-07-10 15:26:48,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:26:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2020-07-10 15:26:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-10 15:26:48,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:48,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:26:48,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:26:48,635 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:48,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:48,636 INFO L82 PathProgramCache]: Analyzing trace with hash 284203188, now seen corresponding path program 1 times [2020-07-10 15:26:48,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:48,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051431223] [2020-07-10 15:26:48,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:48,822 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:26:48,823 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:26:48,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:26:48,876 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:26:48,876 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:48,876 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:48,877 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:26:48,877 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:26:48,878 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:26:48,878 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:26:48,879 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:48,879 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:48,879 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:48,879 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:48,880 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:48,880 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:48,881 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:48,881 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:48,886 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:26:48,886 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:26:48,886 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-10 15:26:48,887 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:26:48,887 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:48,887 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:48,887 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:48,887 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:48,888 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 15:26:48,888 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-10 15:26:48,888 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:26:48,888 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:26:48,892 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:26:48,892 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:48,892 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:48,892 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:48,892 WARN L170 areAnnotationChecker]: L53-1 has no Hoare annotation [2020-07-10 15:26:48,893 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-10 15:26:48,893 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 15:26:48,893 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:48,893 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:48,895 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-10 15:26:48,896 WARN L170 areAnnotationChecker]: L44-3 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L44-4 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-10 15:26:48,897 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-10 15:26:48,898 WARN L170 areAnnotationChecker]: L44-2 has no Hoare annotation [2020-07-10 15:26:48,898 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. [2020-07-10 15:26:48,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:26:48 BoogieIcfgContainer [2020-07-10 15:26:48,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:26:48,911 INFO L168 Benchmark]: Toolchain (without parser) took 3230.47 ms. Allocated memory was 144.7 MB in the beginning and 234.9 MB in the end (delta: 90.2 MB). Free memory was 101.9 MB in the beginning and 102.5 MB in the end (delta: -582.7 kB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:48,914 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:26:48,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.66 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 90.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:48,917 INFO L168 Benchmark]: Boogie Preprocessor took 146.80 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 90.4 MB in the beginning and 179.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:48,921 INFO L168 Benchmark]: RCFGBuilder took 585.92 ms. Allocated memory is still 202.9 MB. Free memory was 179.4 MB in the beginning and 153.4 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:48,923 INFO L168 Benchmark]: TraceAbstraction took 2140.97 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 152.4 MB in the beginning and 102.5 MB in the end (delta: 49.9 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:48,934 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 0.25 ms. Allocated memory is still 144.7 MB. Free memory is still 120.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.66 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 90.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.80 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 90.4 MB in the beginning and 179.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 585.92 ms. Allocated memory is still 202.9 MB. Free memory was 179.4 MB in the beginning and 153.4 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2140.97 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 152.4 MB in the beginning and 102.5 MB in the end (delta: 49.9 MB). Peak memory consumption was 81.9 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] sum[0] = 1 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={5:0}] [L30] COND TRUE i