/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/ssinaf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:03,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:03,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:03,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:03,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:03,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:03,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:03,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:03,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:03,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:03,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:03,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:03,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:03,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:03,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:03,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:03,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:03,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:03,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:03,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:03,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:03,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:03,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:03,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:03,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:03,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:03,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:03,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:03,741 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 22:50:03,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:03,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:03,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:03,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:03,766 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:03,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:03,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:03,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:03,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:03,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:03,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:03,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:03,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:03,769 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:03,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:03,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:03,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:03,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:03,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:03,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:03,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:03,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:03,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:03,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:03,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:04,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:04,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:04,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:04,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:04,052 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:04,053 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ssinaf.c [2020-07-17 22:50:04,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045008e1e/dc7107cba45f4326b57c294bfcdb628f/FLAG14692927a [2020-07-17 22:50:04,558 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:04,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ssinaf.c [2020-07-17 22:50:04,566 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045008e1e/dc7107cba45f4326b57c294bfcdb628f/FLAG14692927a [2020-07-17 22:50:04,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045008e1e/dc7107cba45f4326b57c294bfcdb628f [2020-07-17 22:50:04,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:04,930 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:04,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:04,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:04,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:04,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:04" (1/1) ... [2020-07-17 22:50:04,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78949922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:04, skipping insertion in model container [2020-07-17 22:50:04,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:04" (1/1) ... [2020-07-17 22:50:04,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:04,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:05,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:05,204 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:05,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:05,288 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:05,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05 WrapperNode [2020-07-17 22:50:05,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:05,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:05,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:05,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:05,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (1/1) ... [2020-07-17 22:50:05,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:05,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:05,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:05,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:05,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (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 22:50:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:05,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:05,525 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:50:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 22:50:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:50:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:50:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:50:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:06,037 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:06,037 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:50:06,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:06 BoogieIcfgContainer [2020-07-17 22:50:06,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:06,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:06,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:06,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:06,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:04" (1/3) ... [2020-07-17 22:50:06,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5331a778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:06, skipping insertion in model container [2020-07-17 22:50:06,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:05" (2/3) ... [2020-07-17 22:50:06,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5331a778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:06, skipping insertion in model container [2020-07-17 22:50:06,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:06" (3/3) ... [2020-07-17 22:50:06,050 INFO L109 eAbstractionObserver]: Analyzing ICFG ssinaf.c [2020-07-17 22:50:06,061 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:06,069 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:06,081 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:06,103 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:06,103 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:06,103 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:06,103 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:06,103 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:06,104 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:06,104 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:06,104 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:06,123 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-17 22:50:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-17 22:50:06,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:06,130 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] [2020-07-17 22:50:06,130 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:06,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:06,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1994596369, now seen corresponding path program 1 times [2020-07-17 22:50:06,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:06,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532659944] [2020-07-17 22:50:06,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:06,373 INFO L280 TraceCheckUtils]: 0: Hoare triple {55#(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; {46#true} is VALID [2020-07-17 22:50:06,374 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-17 22:50:06,375 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #123#return; {46#true} is VALID [2020-07-17 22:50:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:06,385 INFO L280 TraceCheckUtils]: 0: Hoare triple {46#true} ~cond := #in~cond; {46#true} is VALID [2020-07-17 22:50:06,387 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume 0 == ~cond;assume false; {47#false} is VALID [2020-07-17 22:50:06,387 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-17 22:50:06,388 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {47#false} {46#true} #119#return; {47#false} is VALID [2020-07-17 22:50:06,390 INFO L263 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {55#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:50:06,391 INFO L280 TraceCheckUtils]: 1: Hoare triple {55#(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; {46#true} is VALID [2020-07-17 22:50:06,391 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-17 22:50:06,392 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #123#return; {46#true} is VALID [2020-07-17 22:50:06,392 INFO L263 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret17 := main(); {46#true} is VALID [2020-07-17 22:50:06,392 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {46#true} is VALID [2020-07-17 22:50:06,393 INFO L280 TraceCheckUtils]: 6: Hoare triple {46#true} assume !(~N~0 <= 0); {46#true} is VALID [2020-07-17 22:50:06,393 INFO L263 TraceCheckUtils]: 7: Hoare triple {46#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {46#true} is VALID [2020-07-17 22:50:06,394 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#true} ~cond := #in~cond; {46#true} is VALID [2020-07-17 22:50:06,395 INFO L280 TraceCheckUtils]: 9: Hoare triple {46#true} assume 0 == ~cond;assume false; {47#false} is VALID [2020-07-17 22:50:06,395 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-17 22:50:06,396 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {47#false} {46#true} #119#return; {47#false} is VALID [2020-07-17 22:50:06,396 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,397 INFO L280 TraceCheckUtils]: 13: Hoare triple {47#false} assume !(~i~0 < ~N~0); {47#false} is VALID [2020-07-17 22:50:06,397 INFO L280 TraceCheckUtils]: 14: Hoare triple {47#false} ~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,398 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#false} assume !(~i~0 < ~N~0); {47#false} is VALID [2020-07-17 22:50:06,398 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#false} ~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,398 INFO L280 TraceCheckUtils]: 17: Hoare triple {47#false} assume !(~i~0 < ~N~0); {47#false} is VALID [2020-07-17 22:50:06,399 INFO L280 TraceCheckUtils]: 18: Hoare triple {47#false} call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,399 INFO L280 TraceCheckUtils]: 19: Hoare triple {47#false} assume !true; {47#false} is VALID [2020-07-17 22:50:06,400 INFO L280 TraceCheckUtils]: 20: Hoare triple {47#false} ~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,400 INFO L280 TraceCheckUtils]: 21: Hoare triple {47#false} assume !true; {47#false} is VALID [2020-07-17 22:50:06,400 INFO L280 TraceCheckUtils]: 22: Hoare triple {47#false} ~i~0 := 0; {47#false} is VALID [2020-07-17 22:50:06,401 INFO L280 TraceCheckUtils]: 23: Hoare triple {47#false} assume !!(~i~0 < ~N~0);call #t~mem16 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {47#false} is VALID [2020-07-17 22:50:06,401 INFO L263 TraceCheckUtils]: 24: Hoare triple {47#false} call __VERIFIER_assert((if #t~mem16 == (1 + ~N~0) * (1 + ~N~0) then 1 else 0)); {47#false} is VALID [2020-07-17 22:50:06,402 INFO L280 TraceCheckUtils]: 25: Hoare triple {47#false} ~cond := #in~cond; {47#false} is VALID [2020-07-17 22:50:06,402 INFO L280 TraceCheckUtils]: 26: Hoare triple {47#false} assume 0 == ~cond; {47#false} is VALID [2020-07-17 22:50:06,402 INFO L280 TraceCheckUtils]: 27: Hoare triple {47#false} assume !false; {47#false} is VALID [2020-07-17 22:50:06,408 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 22:50:06,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532659944] [2020-07-17 22:50:06,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:06,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:06,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721647501] [2020-07-17 22:50:06,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-17 22:50:06,421 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:06,426 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:06,481 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:06,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:06,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:06,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:06,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:06,495 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 3 states. [2020-07-17 22:50:06,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:06,797 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-07-17 22:50:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:06,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-07-17 22:50:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:06,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2020-07-17 22:50:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2020-07-17 22:50:06,821 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 103 transitions. [2020-07-17 22:50:07,008 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 103 edges. 103 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:07,037 INFO L225 Difference]: With dead ends: 76 [2020-07-17 22:50:07,038 INFO L226 Difference]: Without dead ends: 38 [2020-07-17 22:50:07,044 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 22:50:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-17 22:50:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-07-17 22:50:07,107 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:07,107 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2020-07-17 22:50:07,108 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-17 22:50:07,108 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-17 22:50:07,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:07,114 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-07-17 22:50:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-17 22:50:07,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:07,115 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:07,115 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2020-07-17 22:50:07,115 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2020-07-17 22:50:07,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:07,120 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2020-07-17 22:50:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-17 22:50:07,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:07,121 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:07,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:07,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:07,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-17 22:50:07,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-07-17 22:50:07,127 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 28 [2020-07-17 22:50:07,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:07,128 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-07-17 22:50:07,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-17 22:50:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-17 22:50:07,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:07,130 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] [2020-07-17 22:50:07,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:07,130 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1530390023, now seen corresponding path program 1 times [2020-07-17 22:50:07,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:07,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081083490] [2020-07-17 22:50:07,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:07,251 INFO L280 TraceCheckUtils]: 0: Hoare triple {295#(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; {284#true} is VALID [2020-07-17 22:50:07,252 INFO L280 TraceCheckUtils]: 1: Hoare triple {284#true} assume true; {284#true} is VALID [2020-07-17 22:50:07,252 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {284#true} {284#true} #123#return; {284#true} is VALID [2020-07-17 22:50:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:07,261 INFO L280 TraceCheckUtils]: 0: Hoare triple {284#true} ~cond := #in~cond; {284#true} is VALID [2020-07-17 22:50:07,261 INFO L280 TraceCheckUtils]: 1: Hoare triple {284#true} assume !(0 == ~cond); {284#true} is VALID [2020-07-17 22:50:07,262 INFO L280 TraceCheckUtils]: 2: Hoare triple {284#true} assume true; {284#true} is VALID [2020-07-17 22:50:07,263 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {284#true} {289#(<= 1 ~N~0)} #119#return; {289#(<= 1 ~N~0)} is VALID [2020-07-17 22:50:07,264 INFO L263 TraceCheckUtils]: 0: Hoare triple {284#true} call ULTIMATE.init(); {295#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-17 22:50:07,265 INFO L280 TraceCheckUtils]: 1: Hoare triple {295#(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; {284#true} is VALID [2020-07-17 22:50:07,265 INFO L280 TraceCheckUtils]: 2: Hoare triple {284#true} assume true; {284#true} is VALID [2020-07-17 22:50:07,265 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {284#true} {284#true} #123#return; {284#true} is VALID [2020-07-17 22:50:07,266 INFO L263 TraceCheckUtils]: 4: Hoare triple {284#true} call #t~ret17 := main(); {284#true} is VALID [2020-07-17 22:50:07,266 INFO L280 TraceCheckUtils]: 5: Hoare triple {284#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {284#true} is VALID [2020-07-17 22:50:07,267 INFO L280 TraceCheckUtils]: 6: Hoare triple {284#true} assume !(~N~0 <= 0); {289#(<= 1 ~N~0)} is VALID [2020-07-17 22:50:07,268 INFO L263 TraceCheckUtils]: 7: Hoare triple {289#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {284#true} is VALID [2020-07-17 22:50:07,268 INFO L280 TraceCheckUtils]: 8: Hoare triple {284#true} ~cond := #in~cond; {284#true} is VALID [2020-07-17 22:50:07,268 INFO L280 TraceCheckUtils]: 9: Hoare triple {284#true} assume !(0 == ~cond); {284#true} is VALID [2020-07-17 22:50:07,269 INFO L280 TraceCheckUtils]: 10: Hoare triple {284#true} assume true; {284#true} is VALID [2020-07-17 22:50:07,270 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {284#true} {289#(<= 1 ~N~0)} #119#return; {289#(<= 1 ~N~0)} is VALID [2020-07-17 22:50:07,272 INFO L280 TraceCheckUtils]: 12: Hoare triple {289#(<= 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(8 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {294#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-17 22:50:07,273 INFO L280 TraceCheckUtils]: 13: Hoare triple {294#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {285#false} is VALID [2020-07-17 22:50:07,273 INFO L280 TraceCheckUtils]: 14: Hoare triple {285#false} ~i~0 := 0; {285#false} is VALID [2020-07-17 22:50:07,274 INFO L280 TraceCheckUtils]: 15: Hoare triple {285#false} assume !(~i~0 < ~N~0); {285#false} is VALID [2020-07-17 22:50:07,274 INFO L280 TraceCheckUtils]: 16: Hoare triple {285#false} ~i~0 := 0; {285#false} is VALID [2020-07-17 22:50:07,274 INFO L280 TraceCheckUtils]: 17: Hoare triple {285#false} assume !(~i~0 < ~N~0); {285#false} is VALID [2020-07-17 22:50:07,274 INFO L280 TraceCheckUtils]: 18: Hoare triple {285#false} call write~int(1, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {285#false} is VALID [2020-07-17 22:50:07,275 INFO L280 TraceCheckUtils]: 19: Hoare triple {285#false} assume !(~i~0 < ~N~0); {285#false} is VALID [2020-07-17 22:50:07,275 INFO L280 TraceCheckUtils]: 20: Hoare triple {285#false} ~i~0 := 0; {285#false} is VALID [2020-07-17 22:50:07,275 INFO L280 TraceCheckUtils]: 21: Hoare triple {285#false} assume !(~i~0 < ~N~0); {285#false} is VALID [2020-07-17 22:50:07,276 INFO L280 TraceCheckUtils]: 22: Hoare triple {285#false} ~i~0 := 0; {285#false} is VALID [2020-07-17 22:50:07,276 INFO L280 TraceCheckUtils]: 23: Hoare triple {285#false} assume !!(~i~0 < ~N~0);call #t~mem16 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {285#false} is VALID [2020-07-17 22:50:07,276 INFO L263 TraceCheckUtils]: 24: Hoare triple {285#false} call __VERIFIER_assert((if #t~mem16 == (1 + ~N~0) * (1 + ~N~0) then 1 else 0)); {285#false} is VALID [2020-07-17 22:50:07,277 INFO L280 TraceCheckUtils]: 25: Hoare triple {285#false} ~cond := #in~cond; {285#false} is VALID [2020-07-17 22:50:07,277 INFO L280 TraceCheckUtils]: 26: Hoare triple {285#false} assume 0 == ~cond; {285#false} is VALID [2020-07-17 22:50:07,277 INFO L280 TraceCheckUtils]: 27: Hoare triple {285#false} assume !false; {285#false} is VALID [2020-07-17 22:50:07,280 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 22:50:07,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081083490] [2020-07-17 22:50:07,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:07,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:50:07,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858863475] [2020-07-17 22:50:07,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-07-17 22:50:07,283 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:07,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:50:07,321 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:07,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:50:07,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:07,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:50:07,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:50:07,323 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 5 states. [2020-07-17 22:50:07,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:07,733 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2020-07-17 22:50:07,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 22:50:07,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-07-17 22:50:07,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2020-07-17 22:50:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2020-07-17 22:50:07,743 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 90 transitions. [2020-07-17 22:50:07,868 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 90 edges. 90 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:07,871 INFO L225 Difference]: With dead ends: 75 [2020-07-17 22:50:07,872 INFO L226 Difference]: Without dead ends: 52 [2020-07-17 22:50:07,873 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 22:50:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-07-17 22:50:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2020-07-17 22:50:07,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:07,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 52 states. Second operand 43 states. [2020-07-17 22:50:07,919 INFO L74 IsIncluded]: Start isIncluded. First operand 52 states. Second operand 43 states. [2020-07-17 22:50:07,919 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 43 states. [2020-07-17 22:50:07,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:07,924 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-07-17 22:50:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-07-17 22:50:07,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:07,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:07,926 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 52 states. [2020-07-17 22:50:07,926 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 52 states. [2020-07-17 22:50:07,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:07,930 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-07-17 22:50:07,930 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-07-17 22:50:07,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:07,931 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:07,931 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:07,932 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-17 22:50:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-07-17 22:50:07,934 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 28 [2020-07-17 22:50:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:07,935 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-07-17 22:50:07,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:50:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-07-17 22:50:07,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-17 22:50:07,936 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:07,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:07,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:07,937 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:07,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1357692925, now seen corresponding path program 1 times [2020-07-17 22:50:07,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:07,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490072983] [2020-07-17 22:50:07,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:07,989 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 22:50:07,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077736749] [2020-07-17 22:50:07,990 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 22:50:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:50:08,115 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:50:08,116 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:50:08,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-17 22:50:08,376 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-17 22:50:08,377 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-17 22:50:08,378 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:08,379 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:08,380 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-17 22:50:08,381 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L56-2 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L56-3 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L56-3 has no Hoare annotation [2020-07-17 22:50:08,382 WARN L170 areAnnotationChecker]: L56-3 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L56-4 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-17 22:50:08,383 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L40-4 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L46-4 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-17 22:50:08,384 WARN L170 areAnnotationChecker]: L51-3 has no Hoare annotation [2020-07-17 22:50:08,385 WARN L170 areAnnotationChecker]: L51-3 has no Hoare annotation [2020-07-17 22:50:08,385 WARN L170 areAnnotationChecker]: L51-3 has no Hoare annotation [2020-07-17 22:50:08,385 WARN L170 areAnnotationChecker]: L51-4 has no Hoare annotation [2020-07-17 22:50:08,385 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2020-07-17 22:50:08,385 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 22:50:08,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:08 BoogieIcfgContainer [2020-07-17 22:50:08,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:08,391 INFO L168 Benchmark]: Toolchain (without parser) took 3461.81 ms. Allocated memory was 144.2 MB in the beginning and 246.9 MB in the end (delta: 102.8 MB). Free memory was 102.2 MB in the beginning and 186.5 MB in the end (delta: -84.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,392 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.89 ms. Allocated memory is still 144.2 MB. Free memory was 102.0 MB in the beginning and 90.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,394 INFO L168 Benchmark]: Boogie Preprocessor took 163.96 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 90.3 MB in the beginning and 179.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,395 INFO L168 Benchmark]: RCFGBuilder took 587.31 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 148.9 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,396 INFO L168 Benchmark]: TraceAbstraction took 2345.08 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 148.2 MB in the beginning and 186.5 MB in the end (delta: -38.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:08,400 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 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 358.89 ms. Allocated memory is still 144.2 MB. Free memory was 102.0 MB in the beginning and 90.3 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.96 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 90.3 MB in the beginning and 179.4 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 587.31 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 148.9 MB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2345.08 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 148.2 MB in the beginning and 186.5 MB in the end (delta: -38.3 MB). Peak memory consumption was 6.3 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)=4, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1, sum={2:0}] [L30] COND TRUE i