/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/brs3f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:48:45,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:48:45,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:48:45,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:48:45,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:48:45,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:48:45,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:48:45,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:48:45,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:48:45,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:48:45,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:48:45,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:48:45,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:48:45,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:48:45,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:48:45,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:48:45,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:48:45,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:48:45,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:48:45,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:48:45,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:48:45,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:48:45,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:48:45,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:48:45,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:48:45,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:48:45,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:48:45,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:48:45,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:48:45,419 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:48:45,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:48:45,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:48:45,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:48:45,424 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:48:45,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:48:45,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:48:45,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:48:45,426 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:48:45,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:48:45,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:48:45,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:48:45,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:48:45,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:48:45,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:48:45,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:48:45,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:48:45,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:48:45,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:48:45,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:48:45,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:48:45,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:48:45,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:48:45,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:48:45,734 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:48:45,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs3f.c [2020-07-17 22:48:45,794 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed84b4119/a363ce3c00aa4f05bb6cd2f64c5f4c93/FLAG18f79f802 [2020-07-17 22:48:46,224 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:48:46,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs3f.c [2020-07-17 22:48:46,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed84b4119/a363ce3c00aa4f05bb6cd2f64c5f4c93/FLAG18f79f802 [2020-07-17 22:48:46,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed84b4119/a363ce3c00aa4f05bb6cd2f64c5f4c93 [2020-07-17 22:48:46,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:48:46,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:48:46,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:48:46,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:48:46,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:48:46,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:46,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae885f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46, skipping insertion in model container [2020-07-17 22:48:46,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:46,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:48:46,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:48:46,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:48:46,906 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:48:46,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:48:46,944 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:48:46,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46 WrapperNode [2020-07-17 22:48:46,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:48:46,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:48:46,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:48:46,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:48:47,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (1/1) ... [2020-07-17 22:48:47,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:48:47,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:48:47,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:48:47,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:48:47,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (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 [2020-07-17 22:48:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:48:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:48:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:48:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:48:47,115 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:48:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:48:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:48:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:48:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:48:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:48:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:48:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:48:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:48:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:48:47,494 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:48:47,494 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 22:48:47,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:48:47 BoogieIcfgContainer [2020-07-17 22:48:47,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:48:47,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:48:47,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:48:47,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:48:47,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:48:46" (1/3) ... [2020-07-17 22:48:47,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525a1c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:48:47, skipping insertion in model container [2020-07-17 22:48:47,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:48:46" (2/3) ... [2020-07-17 22:48:47,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525a1c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:48:47, skipping insertion in model container [2020-07-17 22:48:47,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:48:47" (3/3) ... [2020-07-17 22:48:47,518 INFO L109 eAbstractionObserver]: Analyzing ICFG brs3f.c [2020-07-17 22:48:47,527 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:48:47,535 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:48:47,547 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:48:47,564 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:48:47,564 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:48:47,565 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:48:47,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:48:47,565 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:48:47,565 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:48:47,565 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:48:47,565 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:48:47,580 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-17 22:48:47,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:48:47,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:48:47,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:48:47,587 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:48:47,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:48:47,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1824292310, now seen corresponding path program 1 times [2020-07-17 22:48:47,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:48:47,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546627755] [2020-07-17 22:48:47,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:48:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:47,810 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#(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; {36#true} is VALID [2020-07-17 22:48:47,811 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-17 22:48:47,811 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #77#return; {36#true} is VALID [2020-07-17 22:48:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:47,824 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-17 22:48:47,825 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-17 22:48:47,825 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-17 22:48:47,826 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#false} {36#true} #73#return; {37#false} is VALID [2020-07-17 22:48:47,828 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {45#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:48:47,828 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#(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; {36#true} is VALID [2020-07-17 22:48:47,829 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-17 22:48:47,829 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36#true} {36#true} #77#return; {36#true} is VALID [2020-07-17 22:48:47,829 INFO L263 TraceCheckUtils]: 4: Hoare triple {36#true} call #t~ret7 := main(); {36#true} is VALID [2020-07-17 22:48:47,830 INFO L280 TraceCheckUtils]: 5: Hoare triple {36#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {36#true} is VALID [2020-07-17 22:48:47,830 INFO L280 TraceCheckUtils]: 6: Hoare triple {36#true} assume !(~N~0 <= 0); {36#true} is VALID [2020-07-17 22:48:47,831 INFO L263 TraceCheckUtils]: 7: Hoare triple {36#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {36#true} is VALID [2020-07-17 22:48:47,831 INFO L280 TraceCheckUtils]: 8: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-17 22:48:47,832 INFO L280 TraceCheckUtils]: 9: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-17 22:48:47,833 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-17 22:48:47,833 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {37#false} {36#true} #73#return; {37#false} is VALID [2020-07-17 22:48:47,834 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {37#false} is VALID [2020-07-17 22:48:47,834 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#false} assume !(~i~0 < ~N~0); {37#false} is VALID [2020-07-17 22:48:47,835 INFO L280 TraceCheckUtils]: 14: Hoare triple {37#false} ~i~0 := 0; {37#false} is VALID [2020-07-17 22:48:47,835 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#false} assume !true; {37#false} is VALID [2020-07-17 22:48:47,836 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {37#false} is VALID [2020-07-17 22:48:47,836 INFO L263 TraceCheckUtils]: 17: Hoare triple {37#false} call __VERIFIER_assert((if #t~mem6 <= 3 * ~N~0 then 1 else 0)); {37#false} is VALID [2020-07-17 22:48:47,836 INFO L280 TraceCheckUtils]: 18: Hoare triple {37#false} ~cond := #in~cond; {37#false} is VALID [2020-07-17 22:48:47,837 INFO L280 TraceCheckUtils]: 19: Hoare triple {37#false} assume 0 == ~cond; {37#false} is VALID [2020-07-17 22:48:47,837 INFO L280 TraceCheckUtils]: 20: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-17 22:48:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:48:47,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546627755] [2020-07-17 22:48:47,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:48:47,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:48:47,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749174578] [2020-07-17 22:48:47,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:48:47,852 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:48:47,856 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:48:47,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:47,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:48:47,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:48:47,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:48:47,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:48:47,911 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-07-17 22:48:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,150 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-07-17 22:48:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:48:48,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-17 22:48:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:48:48,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:48:48,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-17 22:48:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:48:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-17 22:48:48,168 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 71 transitions. [2020-07-17 22:48:48,277 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:48,289 INFO L225 Difference]: With dead ends: 56 [2020-07-17 22:48:48,290 INFO L226 Difference]: Without dead ends: 26 [2020-07-17 22:48:48,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:48:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-17 22:48:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-17 22:48:48,358 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:48:48,359 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-17 22:48:48,359 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-17 22:48:48,359 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-17 22:48:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,364 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-07-17 22:48:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-17 22:48:48,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:48,365 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:48,365 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-17 22:48:48,365 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-17 22:48:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,369 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-07-17 22:48:48,369 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-17 22:48:48,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:48,370 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:48,370 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:48:48,370 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:48:48,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-17 22:48:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-07-17 22:48:48,375 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 21 [2020-07-17 22:48:48,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:48:48,375 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-07-17 22:48:48,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:48:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-17 22:48:48,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-17 22:48:48,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:48:48,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:48:48,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:48:48,378 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:48:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:48:48,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1767537087, now seen corresponding path program 1 times [2020-07-17 22:48:48,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:48:48,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218900912] [2020-07-17 22:48:48,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:48:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:48,522 INFO L280 TraceCheckUtils]: 0: Hoare triple {217#(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; {206#true} is VALID [2020-07-17 22:48:48,523 INFO L280 TraceCheckUtils]: 1: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-17 22:48:48,523 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {206#true} {206#true} #77#return; {206#true} is VALID [2020-07-17 22:48:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:48,532 INFO L280 TraceCheckUtils]: 0: Hoare triple {206#true} ~cond := #in~cond; {206#true} is VALID [2020-07-17 22:48:48,532 INFO L280 TraceCheckUtils]: 1: Hoare triple {206#true} assume !(0 == ~cond); {206#true} is VALID [2020-07-17 22:48:48,533 INFO L280 TraceCheckUtils]: 2: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-17 22:48:48,534 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {206#true} {211#(<= 1 ~N~0)} #73#return; {211#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:48,536 INFO L263 TraceCheckUtils]: 0: Hoare triple {206#true} call ULTIMATE.init(); {217#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:48:48,536 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#(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; {206#true} is VALID [2020-07-17 22:48:48,537 INFO L280 TraceCheckUtils]: 2: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-17 22:48:48,537 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {206#true} {206#true} #77#return; {206#true} is VALID [2020-07-17 22:48:48,537 INFO L263 TraceCheckUtils]: 4: Hoare triple {206#true} call #t~ret7 := main(); {206#true} is VALID [2020-07-17 22:48:48,537 INFO L280 TraceCheckUtils]: 5: Hoare triple {206#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {206#true} is VALID [2020-07-17 22:48:48,539 INFO L280 TraceCheckUtils]: 6: Hoare triple {206#true} assume !(~N~0 <= 0); {211#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:48,539 INFO L263 TraceCheckUtils]: 7: Hoare triple {211#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {206#true} is VALID [2020-07-17 22:48:48,539 INFO L280 TraceCheckUtils]: 8: Hoare triple {206#true} ~cond := #in~cond; {206#true} is VALID [2020-07-17 22:48:48,540 INFO L280 TraceCheckUtils]: 9: Hoare triple {206#true} assume !(0 == ~cond); {206#true} is VALID [2020-07-17 22:48:48,540 INFO L280 TraceCheckUtils]: 10: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-17 22:48:48,541 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {206#true} {211#(<= 1 ~N~0)} #73#return; {211#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:48,543 INFO L280 TraceCheckUtils]: 12: Hoare triple {211#(<= 1 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {216#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-17 22:48:48,544 INFO L280 TraceCheckUtils]: 13: Hoare triple {216#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {207#false} is VALID [2020-07-17 22:48:48,544 INFO L280 TraceCheckUtils]: 14: Hoare triple {207#false} ~i~0 := 0; {207#false} is VALID [2020-07-17 22:48:48,544 INFO L280 TraceCheckUtils]: 15: Hoare triple {207#false} assume !(~i~0 < ~N~0); {207#false} is VALID [2020-07-17 22:48:48,545 INFO L280 TraceCheckUtils]: 16: Hoare triple {207#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {207#false} is VALID [2020-07-17 22:48:48,545 INFO L263 TraceCheckUtils]: 17: Hoare triple {207#false} call __VERIFIER_assert((if #t~mem6 <= 3 * ~N~0 then 1 else 0)); {207#false} is VALID [2020-07-17 22:48:48,545 INFO L280 TraceCheckUtils]: 18: Hoare triple {207#false} ~cond := #in~cond; {207#false} is VALID [2020-07-17 22:48:48,546 INFO L280 TraceCheckUtils]: 19: Hoare triple {207#false} assume 0 == ~cond; {207#false} is VALID [2020-07-17 22:48:48,546 INFO L280 TraceCheckUtils]: 20: Hoare triple {207#false} assume !false; {207#false} is VALID [2020-07-17 22:48:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:48:48,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218900912] [2020-07-17 22:48:48,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:48:48,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:48:48,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255961323] [2020-07-17 22:48:48,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:48:48,551 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:48:48,551 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:48:48,580 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:48,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:48:48,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:48:48,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:48:48,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:48:48,581 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2020-07-17 22:48:48,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,809 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-07-17 22:48:48,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 22:48:48,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-17 22:48:48,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:48:48,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:48:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-17 22:48:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:48:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-17 22:48:48,816 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 55 transitions. [2020-07-17 22:48:48,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:48,891 INFO L225 Difference]: With dead ends: 45 [2020-07-17 22:48:48,891 INFO L226 Difference]: Without dead ends: 32 [2020-07-17 22:48:48,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:48:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-17 22:48:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-17 22:48:48,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:48:48,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 30 states. [2020-07-17 22:48:48,920 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 30 states. [2020-07-17 22:48:48,920 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 30 states. [2020-07-17 22:48:48,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,923 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-17 22:48:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-17 22:48:48,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:48,924 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:48,924 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 32 states. [2020-07-17 22:48:48,924 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 32 states. [2020-07-17 22:48:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:48,927 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-17 22:48:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-17 22:48:48,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:48,929 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:48,929 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:48:48,929 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:48:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-17 22:48:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-17 22:48:48,931 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2020-07-17 22:48:48,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:48:48,932 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-17 22:48:48,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:48:48,932 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-17 22:48:48,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 22:48:48,933 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:48:48,934 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] [2020-07-17 22:48:48,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:48:48,934 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:48:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:48:48,935 INFO L82 PathProgramCache]: Analyzing trace with hash -395878216, now seen corresponding path program 1 times [2020-07-17 22:48:48,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:48:48,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634963174] [2020-07-17 22:48:48,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:48:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:49,171 INFO L280 TraceCheckUtils]: 0: Hoare triple {404#(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; {390#true} is VALID [2020-07-17 22:48:49,172 INFO L280 TraceCheckUtils]: 1: Hoare triple {390#true} assume true; {390#true} is VALID [2020-07-17 22:48:49,172 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {390#true} {390#true} #77#return; {390#true} is VALID [2020-07-17 22:48:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:49,179 INFO L280 TraceCheckUtils]: 0: Hoare triple {390#true} ~cond := #in~cond; {390#true} is VALID [2020-07-17 22:48:49,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {390#true} assume !(0 == ~cond); {390#true} is VALID [2020-07-17 22:48:49,180 INFO L280 TraceCheckUtils]: 2: Hoare triple {390#true} assume true; {390#true} is VALID [2020-07-17 22:48:49,181 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {390#true} {395#(<= 1 ~N~0)} #73#return; {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,183 INFO L263 TraceCheckUtils]: 0: Hoare triple {390#true} call ULTIMATE.init(); {404#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:48:49,183 INFO L280 TraceCheckUtils]: 1: Hoare triple {404#(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; {390#true} is VALID [2020-07-17 22:48:49,183 INFO L280 TraceCheckUtils]: 2: Hoare triple {390#true} assume true; {390#true} is VALID [2020-07-17 22:48:49,184 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {390#true} {390#true} #77#return; {390#true} is VALID [2020-07-17 22:48:49,184 INFO L263 TraceCheckUtils]: 4: Hoare triple {390#true} call #t~ret7 := main(); {390#true} is VALID [2020-07-17 22:48:49,185 INFO L280 TraceCheckUtils]: 5: Hoare triple {390#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {390#true} is VALID [2020-07-17 22:48:49,186 INFO L280 TraceCheckUtils]: 6: Hoare triple {390#true} assume !(~N~0 <= 0); {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,186 INFO L263 TraceCheckUtils]: 7: Hoare triple {395#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {390#true} is VALID [2020-07-17 22:48:49,187 INFO L280 TraceCheckUtils]: 8: Hoare triple {390#true} ~cond := #in~cond; {390#true} is VALID [2020-07-17 22:48:49,187 INFO L280 TraceCheckUtils]: 9: Hoare triple {390#true} assume !(0 == ~cond); {390#true} is VALID [2020-07-17 22:48:49,188 INFO L280 TraceCheckUtils]: 10: Hoare triple {390#true} assume true; {390#true} is VALID [2020-07-17 22:48:49,189 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {390#true} {395#(<= 1 ~N~0)} #73#return; {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,190 INFO L280 TraceCheckUtils]: 12: Hoare triple {395#(<= 1 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,191 INFO L280 TraceCheckUtils]: 13: Hoare triple {395#(<= 1 ~N~0)} assume !!(~i~0 < ~N~0); {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,191 INFO L280 TraceCheckUtils]: 14: Hoare triple {395#(<= 1 ~N~0)} assume 0 == (if ~i~0 < 0 && 0 != ~i~0 % 3 then ~i~0 % 3 - 3 else ~i~0 % 3);call write~int(3, ~a~0.base, ~a~0.offset + 4 * ~i~0, 4); {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,192 INFO L280 TraceCheckUtils]: 15: Hoare triple {395#(<= 1 ~N~0)} #t~post2 := ~i~0;~i~0 := 1 + #t~post2;havoc #t~post2; {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,193 INFO L280 TraceCheckUtils]: 16: Hoare triple {395#(<= 1 ~N~0)} assume !(~i~0 < ~N~0); {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,194 INFO L280 TraceCheckUtils]: 17: Hoare triple {395#(<= 1 ~N~0)} ~i~0 := 0; {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,195 INFO L280 TraceCheckUtils]: 18: Hoare triple {395#(<= 1 ~N~0)} assume !!(~i~0 < ~N~0); {395#(<= 1 ~N~0)} is VALID [2020-07-17 22:48:49,196 INFO L280 TraceCheckUtils]: 19: Hoare triple {395#(<= 1 ~N~0)} assume 0 == ~i~0;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} is VALID [2020-07-17 22:48:49,197 INFO L280 TraceCheckUtils]: 20: Hoare triple {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} #t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3; {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} is VALID [2020-07-17 22:48:49,199 INFO L280 TraceCheckUtils]: 21: Hoare triple {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} assume !(~i~0 < ~N~0); {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} is VALID [2020-07-17 22:48:49,200 INFO L280 TraceCheckUtils]: 22: Hoare triple {400#(and (<= 1 ~N~0) (= (select (select |#memory_int| |main_~#sum~0.base|) |main_~#sum~0.offset|) 0))} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {401#(and (= 0 |main_#t~mem6|) (<= 1 ~N~0))} is VALID [2020-07-17 22:48:49,202 INFO L263 TraceCheckUtils]: 23: Hoare triple {401#(and (= 0 |main_#t~mem6|) (<= 1 ~N~0))} call __VERIFIER_assert((if #t~mem6 <= 3 * ~N~0 then 1 else 0)); {402#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:48:49,203 INFO L280 TraceCheckUtils]: 24: Hoare triple {402#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {403#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:48:49,204 INFO L280 TraceCheckUtils]: 25: Hoare triple {403#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {391#false} is VALID [2020-07-17 22:48:49,204 INFO L280 TraceCheckUtils]: 26: Hoare triple {391#false} assume !false; {391#false} is VALID [2020-07-17 22:48:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 22:48:49,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634963174] [2020-07-17 22:48:49,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:48:49,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 22:48:49,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367893103] [2020-07-17 22:48:49,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-17 22:48:49,210 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:48:49,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-17 22:48:49,257 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:49,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 22:48:49,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:48:49,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 22:48:49,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-07-17 22:48:49,259 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 8 states. [2020-07-17 22:48:49,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:49,727 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-07-17 22:48:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 22:48:49,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-07-17 22:48:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:48:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-17 22:48:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2020-07-17 22:48:49,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-17 22:48:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2020-07-17 22:48:49,733 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 39 transitions. [2020-07-17 22:48:49,781 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:49,783 INFO L225 Difference]: With dead ends: 39 [2020-07-17 22:48:49,783 INFO L226 Difference]: Without dead ends: 33 [2020-07-17 22:48:49,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-17 22:48:49,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-17 22:48:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-07-17 22:48:49,807 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:48:49,807 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 32 states. [2020-07-17 22:48:49,807 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 32 states. [2020-07-17 22:48:49,807 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 32 states. [2020-07-17 22:48:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:49,810 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-17 22:48:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-17 22:48:49,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:49,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:49,811 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 33 states. [2020-07-17 22:48:49,811 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 33 states. [2020-07-17 22:48:49,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:49,814 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2020-07-17 22:48:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-07-17 22:48:49,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:49,815 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:49,815 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:48:49,815 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:48:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-07-17 22:48:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-07-17 22:48:49,817 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 27 [2020-07-17 22:48:49,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:48:49,818 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-07-17 22:48:49,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 22:48:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-17 22:48:49,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 22:48:49,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:48:49,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:48:49,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 22:48:49,820 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:48:49,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:48:49,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1239476407, now seen corresponding path program 1 times [2020-07-17 22:48:49,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:48:49,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474552433] [2020-07-17 22:48:49,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:48:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:50,001 INFO L280 TraceCheckUtils]: 0: Hoare triple {595#(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; {581#true} is VALID [2020-07-17 22:48:50,002 INFO L280 TraceCheckUtils]: 1: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,002 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {581#true} {581#true} #77#return; {581#true} is VALID [2020-07-17 22:48:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:50,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {581#true} ~cond := #in~cond; {581#true} is VALID [2020-07-17 22:48:50,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {581#true} assume !(0 == ~cond); {581#true} is VALID [2020-07-17 22:48:50,010 INFO L280 TraceCheckUtils]: 2: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,010 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {581#true} {581#true} #73#return; {581#true} is VALID [2020-07-17 22:48:50,011 INFO L263 TraceCheckUtils]: 0: Hoare triple {581#true} call ULTIMATE.init(); {595#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:48:50,011 INFO L280 TraceCheckUtils]: 1: Hoare triple {595#(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; {581#true} is VALID [2020-07-17 22:48:50,011 INFO L280 TraceCheckUtils]: 2: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,012 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {581#true} {581#true} #77#return; {581#true} is VALID [2020-07-17 22:48:50,012 INFO L263 TraceCheckUtils]: 4: Hoare triple {581#true} call #t~ret7 := main(); {581#true} is VALID [2020-07-17 22:48:50,012 INFO L280 TraceCheckUtils]: 5: Hoare triple {581#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {581#true} is VALID [2020-07-17 22:48:50,012 INFO L280 TraceCheckUtils]: 6: Hoare triple {581#true} assume !(~N~0 <= 0); {581#true} is VALID [2020-07-17 22:48:50,013 INFO L263 TraceCheckUtils]: 7: Hoare triple {581#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {581#true} is VALID [2020-07-17 22:48:50,013 INFO L280 TraceCheckUtils]: 8: Hoare triple {581#true} ~cond := #in~cond; {581#true} is VALID [2020-07-17 22:48:50,013 INFO L280 TraceCheckUtils]: 9: Hoare triple {581#true} assume !(0 == ~cond); {581#true} is VALID [2020-07-17 22:48:50,014 INFO L280 TraceCheckUtils]: 10: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,014 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {581#true} {581#true} #73#return; {581#true} is VALID [2020-07-17 22:48:50,015 INFO L280 TraceCheckUtils]: 12: Hoare triple {581#true} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {590#(= 0 main_~i~0)} is VALID [2020-07-17 22:48:50,020 INFO L280 TraceCheckUtils]: 13: Hoare triple {590#(= 0 main_~i~0)} assume !!(~i~0 < ~N~0); {590#(= 0 main_~i~0)} is VALID [2020-07-17 22:48:50,024 INFO L280 TraceCheckUtils]: 14: Hoare triple {590#(= 0 main_~i~0)} assume 0 == (if ~i~0 < 0 && 0 != ~i~0 % 3 then ~i~0 % 3 - 3 else ~i~0 % 3);call write~int(3, ~a~0.base, ~a~0.offset + 4 * ~i~0, 4); {590#(= 0 main_~i~0)} is VALID [2020-07-17 22:48:50,025 INFO L280 TraceCheckUtils]: 15: Hoare triple {590#(= 0 main_~i~0)} #t~post2 := ~i~0;~i~0 := 1 + #t~post2;havoc #t~post2; {591#(<= main_~i~0 1)} is VALID [2020-07-17 22:48:50,026 INFO L280 TraceCheckUtils]: 16: Hoare triple {591#(<= main_~i~0 1)} assume !(~i~0 < ~N~0); {592#(<= ~N~0 1)} is VALID [2020-07-17 22:48:50,027 INFO L280 TraceCheckUtils]: 17: Hoare triple {592#(<= ~N~0 1)} ~i~0 := 0; {593#(and (<= ~N~0 1) (= 0 main_~i~0))} is VALID [2020-07-17 22:48:50,028 INFO L280 TraceCheckUtils]: 18: Hoare triple {593#(and (<= ~N~0 1) (= 0 main_~i~0))} assume !!(~i~0 < ~N~0); {593#(and (<= ~N~0 1) (= 0 main_~i~0))} is VALID [2020-07-17 22:48:50,029 INFO L280 TraceCheckUtils]: 19: Hoare triple {593#(and (<= ~N~0 1) (= 0 main_~i~0))} assume 0 == ~i~0;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); {593#(and (<= ~N~0 1) (= 0 main_~i~0))} is VALID [2020-07-17 22:48:50,029 INFO L280 TraceCheckUtils]: 20: Hoare triple {593#(and (<= ~N~0 1) (= 0 main_~i~0))} #t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3; {594#(<= ~N~0 main_~i~0)} is VALID [2020-07-17 22:48:50,030 INFO L280 TraceCheckUtils]: 21: Hoare triple {594#(<= ~N~0 main_~i~0)} assume !!(~i~0 < ~N~0); {582#false} is VALID [2020-07-17 22:48:50,030 INFO L280 TraceCheckUtils]: 22: Hoare triple {582#false} assume !(0 == ~i~0);call #t~mem4 := read~int(~#sum~0.base, ~#sum~0.offset, 8);call #t~mem5 := read~int(~a~0.base, ~a~0.offset + 4 * ~i~0, 4);call write~int(#t~mem4 + #t~mem5, ~#sum~0.base, ~#sum~0.offset, 8);havoc #t~mem4;havoc #t~mem5; {582#false} is VALID [2020-07-17 22:48:50,031 INFO L280 TraceCheckUtils]: 23: Hoare triple {582#false} #t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3; {582#false} is VALID [2020-07-17 22:48:50,031 INFO L280 TraceCheckUtils]: 24: Hoare triple {582#false} assume !(~i~0 < ~N~0); {582#false} is VALID [2020-07-17 22:48:50,031 INFO L280 TraceCheckUtils]: 25: Hoare triple {582#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {582#false} is VALID [2020-07-17 22:48:50,033 INFO L263 TraceCheckUtils]: 26: Hoare triple {582#false} call __VERIFIER_assert((if #t~mem6 <= 3 * ~N~0 then 1 else 0)); {582#false} is VALID [2020-07-17 22:48:50,034 INFO L280 TraceCheckUtils]: 27: Hoare triple {582#false} ~cond := #in~cond; {582#false} is VALID [2020-07-17 22:48:50,034 INFO L280 TraceCheckUtils]: 28: Hoare triple {582#false} assume 0 == ~cond; {582#false} is VALID [2020-07-17 22:48:50,034 INFO L280 TraceCheckUtils]: 29: Hoare triple {582#false} assume !false; {582#false} is VALID [2020-07-17 22:48:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:48:50,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474552433] [2020-07-17 22:48:50,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433956016] [2020-07-17 22:48:50,040 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 [2020-07-17 22:48:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:50,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 22:48:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:48:50,123 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 22:48:50,297 INFO L263 TraceCheckUtils]: 0: Hoare triple {581#true} call ULTIMATE.init(); {581#true} is VALID [2020-07-17 22:48:50,297 INFO L280 TraceCheckUtils]: 1: Hoare triple {581#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {581#true} is VALID [2020-07-17 22:48:50,298 INFO L280 TraceCheckUtils]: 2: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,298 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {581#true} {581#true} #77#return; {581#true} is VALID [2020-07-17 22:48:50,298 INFO L263 TraceCheckUtils]: 4: Hoare triple {581#true} call #t~ret7 := main(); {581#true} is VALID [2020-07-17 22:48:50,298 INFO L280 TraceCheckUtils]: 5: Hoare triple {581#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {581#true} is VALID [2020-07-17 22:48:50,299 INFO L280 TraceCheckUtils]: 6: Hoare triple {581#true} assume !(~N~0 <= 0); {581#true} is VALID [2020-07-17 22:48:50,299 INFO L263 TraceCheckUtils]: 7: Hoare triple {581#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {581#true} is VALID [2020-07-17 22:48:50,299 INFO L280 TraceCheckUtils]: 8: Hoare triple {581#true} ~cond := #in~cond; {581#true} is VALID [2020-07-17 22:48:50,302 INFO L280 TraceCheckUtils]: 9: Hoare triple {581#true} assume !(0 == ~cond); {581#true} is VALID [2020-07-17 22:48:50,303 INFO L280 TraceCheckUtils]: 10: Hoare triple {581#true} assume true; {581#true} is VALID [2020-07-17 22:48:50,303 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {581#true} {581#true} #73#return; {581#true} is VALID [2020-07-17 22:48:50,308 INFO L280 TraceCheckUtils]: 12: Hoare triple {581#true} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {635#(<= main_~i~0 0)} is VALID [2020-07-17 22:48:50,309 INFO L280 TraceCheckUtils]: 13: Hoare triple {635#(<= main_~i~0 0)} assume !!(~i~0 < ~N~0); {635#(<= main_~i~0 0)} is VALID [2020-07-17 22:48:50,309 INFO L280 TraceCheckUtils]: 14: Hoare triple {635#(<= main_~i~0 0)} assume 0 == (if ~i~0 < 0 && 0 != ~i~0 % 3 then ~i~0 % 3 - 3 else ~i~0 % 3);call write~int(3, ~a~0.base, ~a~0.offset + 4 * ~i~0, 4); {635#(<= main_~i~0 0)} is VALID [2020-07-17 22:48:50,310 INFO L280 TraceCheckUtils]: 15: Hoare triple {635#(<= main_~i~0 0)} #t~post2 := ~i~0;~i~0 := 1 + #t~post2;havoc #t~post2; {591#(<= main_~i~0 1)} is VALID [2020-07-17 22:48:50,311 INFO L280 TraceCheckUtils]: 16: Hoare triple {591#(<= main_~i~0 1)} assume !(~i~0 < ~N~0); {592#(<= ~N~0 1)} is VALID [2020-07-17 22:48:50,312 INFO L280 TraceCheckUtils]: 17: Hoare triple {592#(<= ~N~0 1)} ~i~0 := 0; {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} is VALID [2020-07-17 22:48:50,313 INFO L280 TraceCheckUtils]: 18: Hoare triple {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} assume !!(~i~0 < ~N~0); {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} is VALID [2020-07-17 22:48:50,314 INFO L280 TraceCheckUtils]: 19: Hoare triple {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} assume 0 == ~i~0;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} is VALID [2020-07-17 22:48:50,315 INFO L280 TraceCheckUtils]: 20: Hoare triple {651#(and (<= 0 main_~i~0) (<= ~N~0 1))} #t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3; {661#(and (<= ~N~0 1) (<= 1 main_~i~0))} is VALID [2020-07-17 22:48:50,316 INFO L280 TraceCheckUtils]: 21: Hoare triple {661#(and (<= ~N~0 1) (<= 1 main_~i~0))} assume !!(~i~0 < ~N~0); {582#false} is VALID [2020-07-17 22:48:50,316 INFO L280 TraceCheckUtils]: 22: Hoare triple {582#false} assume !(0 == ~i~0);call #t~mem4 := read~int(~#sum~0.base, ~#sum~0.offset, 8);call #t~mem5 := read~int(~a~0.base, ~a~0.offset + 4 * ~i~0, 4);call write~int(#t~mem4 + #t~mem5, ~#sum~0.base, ~#sum~0.offset, 8);havoc #t~mem4;havoc #t~mem5; {582#false} is VALID [2020-07-17 22:48:50,316 INFO L280 TraceCheckUtils]: 23: Hoare triple {582#false} #t~post3 := ~i~0;~i~0 := 1 + #t~post3;havoc #t~post3; {582#false} is VALID [2020-07-17 22:48:50,316 INFO L280 TraceCheckUtils]: 24: Hoare triple {582#false} assume !(~i~0 < ~N~0); {582#false} is VALID [2020-07-17 22:48:50,317 INFO L280 TraceCheckUtils]: 25: Hoare triple {582#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {582#false} is VALID [2020-07-17 22:48:50,317 INFO L263 TraceCheckUtils]: 26: Hoare triple {582#false} call __VERIFIER_assert((if #t~mem6 <= 3 * ~N~0 then 1 else 0)); {582#false} is VALID [2020-07-17 22:48:50,317 INFO L280 TraceCheckUtils]: 27: Hoare triple {582#false} ~cond := #in~cond; {582#false} is VALID [2020-07-17 22:48:50,317 INFO L280 TraceCheckUtils]: 28: Hoare triple {582#false} assume 0 == ~cond; {582#false} is VALID [2020-07-17 22:48:50,318 INFO L280 TraceCheckUtils]: 29: Hoare triple {582#false} assume !false; {582#false} is VALID [2020-07-17 22:48:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:48:50,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 22:48:50,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2020-07-17 22:48:50,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261910383] [2020-07-17 22:48:50,321 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-07-17 22:48:50,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:48:50,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-17 22:48:50,389 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:50,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 22:48:50,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:48:50,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 22:48:50,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-17 22:48:50,390 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 11 states. [2020-07-17 22:48:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:50,812 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2020-07-17 22:48:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 22:48:50,813 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-07-17 22:48:50,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:48:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-17 22:48:50,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 60 transitions. [2020-07-17 22:48:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-17 22:48:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 60 transitions. [2020-07-17 22:48:50,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 60 transitions. [2020-07-17 22:48:50,894 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:48:50,896 INFO L225 Difference]: With dead ends: 55 [2020-07-17 22:48:50,896 INFO L226 Difference]: Without dead ends: 39 [2020-07-17 22:48:50,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-07-17 22:48:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-17 22:48:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2020-07-17 22:48:50,922 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:48:50,922 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 35 states. [2020-07-17 22:48:50,922 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 35 states. [2020-07-17 22:48:50,923 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 35 states. [2020-07-17 22:48:50,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:50,926 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-07-17 22:48:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-07-17 22:48:50,927 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:50,927 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:50,927 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 39 states. [2020-07-17 22:48:50,927 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 39 states. [2020-07-17 22:48:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:48:50,930 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2020-07-17 22:48:50,930 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-07-17 22:48:50,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:48:50,931 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:48:50,931 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:48:50,931 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:48:50,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-17 22:48:50,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-07-17 22:48:50,933 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 30 [2020-07-17 22:48:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:48:50,933 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-07-17 22:48:50,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 22:48:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-17 22:48:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-17 22:48:50,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:48:50,935 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:48:51,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 22:48:51,148 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:48:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:48:51,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1492634651, now seen corresponding path program 1 times [2020-07-17 22:48:51,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:48:51,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059591099] [2020-07-17 22:48:51,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:48:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:48:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:48:51,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:48:51,235 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:48:51,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 22:48:51,276 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:48:51,276 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:48:51,277 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:48:51,278 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:48:51,279 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:48:51,280 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L38-4 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-17 22:48:51,281 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-17 22:48:51,282 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:48:51,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:48:51 BoogieIcfgContainer [2020-07-17 22:48:51,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:48:51,287 INFO L168 Benchmark]: Toolchain (without parser) took 4620.17 ms. Allocated memory was 137.9 MB in the beginning and 249.6 MB in the end (delta: 111.7 MB). Free memory was 102.6 MB in the beginning and 116.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 97.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,288 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.61 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 91.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,290 INFO L168 Benchmark]: Boogie Preprocessor took 111.10 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.3 MB in the beginning and 178.1 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,290 INFO L168 Benchmark]: RCFGBuilder took 440.36 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 153.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,291 INFO L168 Benchmark]: TraceAbstraction took 3785.56 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 153.0 MB in the beginning and 116.8 MB in the end (delta: 36.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:48:51,295 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.61 ms. Allocated memory is still 137.9 MB. Free memory was 102.1 MB in the beginning and 91.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.10 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.3 MB in the beginning and 178.1 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 440.36 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 153.7 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3785.56 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 153.0 MB in the beginning and 116.8 MB in the end (delta: 36.2 MB). Peak memory consumption was 84.9 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)=32, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=2] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=2] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=2] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=2] [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=2, sum={2:0}] [L29] COND TRUE i