/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/indp1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:26:20,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:26:20,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:26:21,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:26:21,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:26:21,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:26:21,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:26:21,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:26:21,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:26:21,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:26:21,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:26:21,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:26:21,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:26:21,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:26:21,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:26:21,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:26:21,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:26:21,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:26:21,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:26:21,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:26:21,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:26:21,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:26:21,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:26:21,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:26:21,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:26:21,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:26:21,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:26:21,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:26:21,073 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 15:26:21,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:26:21,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:26:21,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:26:21,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:26:21,100 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:26:21,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:26:21,100 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:26:21,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:26:21,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:26:21,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:26:21,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:26:21,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:26:21,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:26:21,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:26:21,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:26:21,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:26:21,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:26:21,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:26:21,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:26:21,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:26:21,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:26:21,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:26:21,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:26:21,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:26:21,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:26:21,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:26:21,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:26:21,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:26:21,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:26:21,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:26:21,417 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:26:21,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:26:21,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:26:21,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:26:21,442 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:26:21,443 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp1f.c [2020-07-10 15:26:21,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ec295ad/ff20390f49f0450a8da0e6c57419101a/FLAGcdd1a205c [2020-07-10 15:26:21,977 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:26:21,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/indp1f.c [2020-07-10 15:26:21,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ec295ad/ff20390f49f0450a8da0e6c57419101a/FLAGcdd1a205c [2020-07-10 15:26:22,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ec295ad/ff20390f49f0450a8da0e6c57419101a [2020-07-10 15:26:22,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:26:22,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:26:22,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:22,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:26:22,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:26:22,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a9796e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22, skipping insertion in model container [2020-07-10 15:26:22,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:26:22,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:26:22,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:22,577 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:26:22,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:22,617 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:26:22,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22 WrapperNode [2020-07-10 15:26:22,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:22,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:26:22,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:26:22,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:26:22,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (1/1) ... [2020-07-10 15:26:22,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:26:22,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:26:22,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:26:22,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:26:22,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (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 15:26:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:26:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:26:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:26:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:26:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:26:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:26:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:26:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:26:22,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:26:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:26:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:26:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:26:22,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:26:23,240 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:26:23,240 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-10 15:26:23,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:23 BoogieIcfgContainer [2020-07-10 15:26:23,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:26:23,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:26:23,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:26:23,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:26:23,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:26:22" (1/3) ... [2020-07-10 15:26:23,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654df555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:23, skipping insertion in model container [2020-07-10 15:26:23,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:22" (2/3) ... [2020-07-10 15:26:23,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654df555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:23, skipping insertion in model container [2020-07-10 15:26:23,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:23" (3/3) ... [2020-07-10 15:26:23,252 INFO L109 eAbstractionObserver]: Analyzing ICFG indp1f.c [2020-07-10 15:26:23,262 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:26:23,270 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:26:23,282 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:26:23,303 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:26:23,303 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:26:23,303 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:26:23,303 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:26:23,303 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:26:23,303 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:26:23,303 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:26:23,303 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:26:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-10 15:26:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-10 15:26:23,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:23,324 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] [2020-07-10 15:26:23,325 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:23,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:23,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-07-10 15:26:23,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:23,338 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111340069] [2020-07-10 15:26:23,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:23,551 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(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; {40#true} is VALID [2020-07-10 15:26:23,551 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-10 15:26:23,552 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-10 15:26:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:23,562 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-10 15:26:23,563 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-10 15:26:23,564 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-10 15:26:23,564 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-10 15:26:23,566 INFO L263 TraceCheckUtils]: 0: Hoare triple {40#true} call ULTIMATE.init(); {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:23,566 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#(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; {40#true} is VALID [2020-07-10 15:26:23,567 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-10 15:26:23,567 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-10 15:26:23,568 INFO L263 TraceCheckUtils]: 4: Hoare triple {40#true} call #t~ret9 := main(); {40#true} is VALID [2020-07-10 15:26:23,568 INFO L280 TraceCheckUtils]: 5: Hoare triple {40#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {40#true} is VALID [2020-07-10 15:26:23,569 INFO L280 TraceCheckUtils]: 6: Hoare triple {40#true} assume !(~N~0 <= 0); {40#true} is VALID [2020-07-10 15:26:23,569 INFO L263 TraceCheckUtils]: 7: Hoare triple {40#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {40#true} is VALID [2020-07-10 15:26:23,569 INFO L280 TraceCheckUtils]: 8: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-10 15:26:23,570 INFO L280 TraceCheckUtils]: 9: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-10 15:26:23,571 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-10 15:26:23,571 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-10 15:26:23,572 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#false} havoc ~i~0;call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {41#false} is VALID [2020-07-10 15:26:23,572 INFO L280 TraceCheckUtils]: 13: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:26:23,573 INFO L280 TraceCheckUtils]: 14: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-10 15:26:23,573 INFO L280 TraceCheckUtils]: 15: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:26:23,574 INFO L280 TraceCheckUtils]: 16: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-10 15:26:23,574 INFO L280 TraceCheckUtils]: 17: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:26:23,575 INFO L280 TraceCheckUtils]: 18: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-10 15:26:23,575 INFO L280 TraceCheckUtils]: 19: Hoare triple {41#false} assume !!(~i~0 < ~N~0);call #t~mem8 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {41#false} is VALID [2020-07-10 15:26:23,575 INFO L263 TraceCheckUtils]: 20: Hoare triple {41#false} call __VERIFIER_assert((if #t~mem8 == ~i~0 then 1 else 0)); {41#false} is VALID [2020-07-10 15:26:23,576 INFO L280 TraceCheckUtils]: 21: Hoare triple {41#false} ~cond := #in~cond; {41#false} is VALID [2020-07-10 15:26:23,576 INFO L280 TraceCheckUtils]: 22: Hoare triple {41#false} assume 0 == ~cond; {41#false} is VALID [2020-07-10 15:26:23,577 INFO L280 TraceCheckUtils]: 23: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-10 15:26:23,580 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 15:26:23,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111340069] [2020-07-10 15:26:23,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:23,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:26:23,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033598718] [2020-07-10 15:26:23,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-10 15:26:23,593 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:23,597 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:26:23,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:23,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:26:23,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:23,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:26:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:23,658 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-07-10 15:26:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:23,861 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-07-10 15:26:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:26:23,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-10 15:26:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-10 15:26:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-10 15:26:23,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 83 transitions. [2020-07-10 15:26:24,034 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:24,047 INFO L225 Difference]: With dead ends: 64 [2020-07-10 15:26:24,047 INFO L226 Difference]: Without dead ends: 32 [2020-07-10 15:26:24,051 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 15:26:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-10 15:26:24,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-07-10 15:26:24,116 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:24,117 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 32 states. [2020-07-10 15:26:24,118 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 32 states. [2020-07-10 15:26:24,118 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 32 states. [2020-07-10 15:26:24,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:24,125 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-10 15:26:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-10 15:26:24,126 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:24,127 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:24,127 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 32 states. [2020-07-10 15:26:24,127 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 32 states. [2020-07-10 15:26:24,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:24,137 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-10 15:26:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-10 15:26:24,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:24,138 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:24,139 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:24,139 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-10 15:26:24,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-10 15:26:24,148 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-07-10 15:26:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:24,149 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-10 15:26:24,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:26:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-10 15:26:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-10 15:26:24,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:24,161 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] [2020-07-10 15:26:24,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:26:24,162 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:24,163 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-07-10 15:26:24,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:24,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502070458] [2020-07-10 15:26:24,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:24,295 INFO L280 TraceCheckUtils]: 0: Hoare triple {253#(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; {242#true} is VALID [2020-07-10 15:26:24,296 INFO L280 TraceCheckUtils]: 1: Hoare triple {242#true} assume true; {242#true} is VALID [2020-07-10 15:26:24,296 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {242#true} {242#true} #95#return; {242#true} is VALID [2020-07-10 15:26:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:24,305 INFO L280 TraceCheckUtils]: 0: Hoare triple {242#true} ~cond := #in~cond; {242#true} is VALID [2020-07-10 15:26:24,305 INFO L280 TraceCheckUtils]: 1: Hoare triple {242#true} assume !(0 == ~cond); {242#true} is VALID [2020-07-10 15:26:24,305 INFO L280 TraceCheckUtils]: 2: Hoare triple {242#true} assume true; {242#true} is VALID [2020-07-10 15:26:24,307 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {242#true} {247#(<= 1 ~N~0)} #91#return; {247#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:24,308 INFO L263 TraceCheckUtils]: 0: Hoare triple {242#true} call ULTIMATE.init(); {253#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:24,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {253#(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; {242#true} is VALID [2020-07-10 15:26:24,308 INFO L280 TraceCheckUtils]: 2: Hoare triple {242#true} assume true; {242#true} is VALID [2020-07-10 15:26:24,309 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {242#true} {242#true} #95#return; {242#true} is VALID [2020-07-10 15:26:24,309 INFO L263 TraceCheckUtils]: 4: Hoare triple {242#true} call #t~ret9 := main(); {242#true} is VALID [2020-07-10 15:26:24,309 INFO L280 TraceCheckUtils]: 5: Hoare triple {242#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {242#true} is VALID [2020-07-10 15:26:24,310 INFO L280 TraceCheckUtils]: 6: Hoare triple {242#true} assume !(~N~0 <= 0); {247#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:24,311 INFO L263 TraceCheckUtils]: 7: Hoare triple {247#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {242#true} is VALID [2020-07-10 15:26:24,311 INFO L280 TraceCheckUtils]: 8: Hoare triple {242#true} ~cond := #in~cond; {242#true} is VALID [2020-07-10 15:26:24,311 INFO L280 TraceCheckUtils]: 9: Hoare triple {242#true} assume !(0 == ~cond); {242#true} is VALID [2020-07-10 15:26:24,312 INFO L280 TraceCheckUtils]: 10: Hoare triple {242#true} assume true; {242#true} is VALID [2020-07-10 15:26:24,313 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {242#true} {247#(<= 1 ~N~0)} #91#return; {247#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:24,314 INFO L280 TraceCheckUtils]: 12: Hoare triple {247#(<= 1 ~N~0)} havoc ~i~0;call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {252#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-10 15:26:24,315 INFO L280 TraceCheckUtils]: 13: Hoare triple {252#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {243#false} is VALID [2020-07-10 15:26:24,315 INFO L280 TraceCheckUtils]: 14: Hoare triple {243#false} ~i~0 := 0; {243#false} is VALID [2020-07-10 15:26:24,316 INFO L280 TraceCheckUtils]: 15: Hoare triple {243#false} assume !(~i~0 < ~N~0); {243#false} is VALID [2020-07-10 15:26:24,316 INFO L280 TraceCheckUtils]: 16: Hoare triple {243#false} ~i~0 := 0; {243#false} is VALID [2020-07-10 15:26:24,316 INFO L280 TraceCheckUtils]: 17: Hoare triple {243#false} assume !(~i~0 < ~N~0); {243#false} is VALID [2020-07-10 15:26:24,316 INFO L280 TraceCheckUtils]: 18: Hoare triple {243#false} ~i~0 := 0; {243#false} is VALID [2020-07-10 15:26:24,317 INFO L280 TraceCheckUtils]: 19: Hoare triple {243#false} assume !!(~i~0 < ~N~0);call #t~mem8 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {243#false} is VALID [2020-07-10 15:26:24,317 INFO L263 TraceCheckUtils]: 20: Hoare triple {243#false} call __VERIFIER_assert((if #t~mem8 == ~i~0 then 1 else 0)); {243#false} is VALID [2020-07-10 15:26:24,317 INFO L280 TraceCheckUtils]: 21: Hoare triple {243#false} ~cond := #in~cond; {243#false} is VALID [2020-07-10 15:26:24,318 INFO L280 TraceCheckUtils]: 22: Hoare triple {243#false} assume 0 == ~cond; {243#false} is VALID [2020-07-10 15:26:24,318 INFO L280 TraceCheckUtils]: 23: Hoare triple {243#false} assume !false; {243#false} is VALID [2020-07-10 15:26:24,319 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 15:26:24,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502070458] [2020-07-10 15:26:24,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:24,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:26:24,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614368547] [2020-07-10 15:26:24,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-10 15:26:24,323 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:24,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:26:24,358 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:24,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:26:24,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:24,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:26:24,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:26:24,359 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-07-10 15:26:24,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:24,657 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-07-10 15:26:24,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:26:24,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-07-10 15:26:24,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:24,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:24,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2020-07-10 15:26:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:24,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2020-07-10 15:26:24,666 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 68 transitions. [2020-07-10 15:26:24,763 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 68 edges. 68 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:24,766 INFO L225 Difference]: With dead ends: 59 [2020-07-10 15:26:24,766 INFO L226 Difference]: Without dead ends: 42 [2020-07-10 15:26:24,768 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 15:26:24,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-10 15:26:24,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-07-10 15:26:24,808 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:24,808 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 35 states. [2020-07-10 15:26:24,809 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 35 states. [2020-07-10 15:26:24,809 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 35 states. [2020-07-10 15:26:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:24,814 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-07-10 15:26:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-07-10 15:26:24,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:24,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:24,816 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 42 states. [2020-07-10 15:26:24,816 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 42 states. [2020-07-10 15:26:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:24,820 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2020-07-10 15:26:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-07-10 15:26:24,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:24,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:24,822 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:24,822 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-10 15:26:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-07-10 15:26:24,825 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-07-10 15:26:24,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:24,826 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-07-10 15:26:24,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:26:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-07-10 15:26:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-10 15:26:24,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:24,827 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] [2020-07-10 15:26:24,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:26:24,828 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:24,829 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-07-10 15:26:24,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:24,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755727325] [2020-07-10 15:26:24,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:24,845 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-10 15:26:24,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042514301] [2020-07-10 15:26:24,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 15:26:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:24,998 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:26:24,998 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:26:25,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-10 15:26:25,249 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:26:25,250 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:25,251 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:25,252 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-10 15:26:25,253 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L45-1 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L28-4 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L43-2 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-10 15:26:25,254 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L33-4 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L43-4 has no Hoare annotation [2020-07-10 15:26:25,255 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L38-4 has no Hoare annotation [2020-07-10 15:26:25,256 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-10 15:26:25,256 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 15:26:25,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:26:25 BoogieIcfgContainer [2020-07-10 15:26:25,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:26:25,263 INFO L168 Benchmark]: Toolchain (without parser) took 2902.00 ms. Allocated memory was 148.4 MB in the beginning and 240.6 MB in the end (delta: 92.3 MB). Free memory was 106.2 MB in the beginning and 201.3 MB in the end (delta: -95.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:26:25,264 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 148.4 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:26:25,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.28 ms. Allocated memory is still 148.4 MB. Free memory was 106.0 MB in the beginning and 95.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:25,265 INFO L168 Benchmark]: Boogie Preprocessor took 150.39 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 95.0 MB in the beginning and 181.1 MB in the end (delta: -86.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:25,266 INFO L168 Benchmark]: RCFGBuilder took 474.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 156.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:25,267 INFO L168 Benchmark]: TraceAbstraction took 2014.65 ms. Allocated memory was 203.4 MB in the beginning and 240.6 MB in the end (delta: 37.2 MB). Free memory was 155.6 MB in the beginning and 201.3 MB in the end (delta: -45.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:26:25,271 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 0.52 ms. Allocated memory is still 148.4 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 256.28 ms. Allocated memory is still 148.4 MB. Free memory was 106.0 MB in the beginning and 95.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.39 ms. Allocated memory was 148.4 MB in the beginning and 203.4 MB in the end (delta: 55.1 MB). Free memory was 95.0 MB in the beginning and 181.1 MB in the end (delta: -86.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.94 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 156.2 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2014.65 ms. Allocated memory was 203.4 MB in the beginning and 240.6 MB in the end (delta: 37.2 MB). Free memory was 155.6 MB in the beginning and 201.3 MB in the end (delta: -45.6 MB). There was no memory consumed. 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)=2, 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 *a = malloc(sizeof(long long)*N); [L28] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1] [L28] COND TRUE i