/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/modsf.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:26:28,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:26:28,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:26:28,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:26:28,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:26:28,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:26:28,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:26:28,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:26:28,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:26:28,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:26:28,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:26:28,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:26:28,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:26:28,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:26:28,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:26:28,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:26:28,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:26:28,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:26:28,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:26:28,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:26:28,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:26:28,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:26:28,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:26:28,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:26:28,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:26:28,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:26:28,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:26:28,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:26:28,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:26:28,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:26:28,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:26:28,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:26:29,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:26:29,000 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:26:29,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:26:29,000 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:26:29,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:26:29,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:26:29,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:26:29,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:26:29,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:26:29,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:26:29,003 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:26:29,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:26:29,003 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:26:29,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:26:29,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:26:29,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:26:29,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:26:29,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:26:29,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:26:29,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:26:29,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:26:29,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:26:29,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:26:29,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:26:29,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:26:29,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:26:29,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:26:29,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:26:29,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:26:29,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:26:29,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:26:29,294 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:26:29,295 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modsf.c [2020-07-10 15:26:29,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cb3cd6a/b390b16ed4a0459ab826ae8af916fe4d/FLAG8244ab961 [2020-07-10 15:26:29,895 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:26:29,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/modsf.c [2020-07-10 15:26:29,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cb3cd6a/b390b16ed4a0459ab826ae8af916fe4d/FLAG8244ab961 [2020-07-10 15:26:30,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86cb3cd6a/b390b16ed4a0459ab826ae8af916fe4d [2020-07-10 15:26:30,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:26:30,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:26:30,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:30,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:26:30,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:26:30,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1975b72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30, skipping insertion in model container [2020-07-10 15:26:30,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:26:30,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:26:30,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:30,582 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:26:30,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:26:30,779 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:26:30,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30 WrapperNode [2020-07-10 15:26:30,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:26:30,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:26:30,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:26:30,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:26:30,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... [2020-07-10 15:26:30,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:26:30,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:26:30,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:26:30,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:26:30,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:26:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:26:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:26:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:26:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:26:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:26:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:26:31,516 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:26:31,517 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-10 15:26:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:31 BoogieIcfgContainer [2020-07-10 15:26:31,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:26:31,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:26:31,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:26:31,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:26:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:26:30" (1/3) ... [2020-07-10 15:26:31,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c9b114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:31, skipping insertion in model container [2020-07-10 15:26:31,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:30" (2/3) ... [2020-07-10 15:26:31,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c9b114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:31, skipping insertion in model container [2020-07-10 15:26:31,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:31" (3/3) ... [2020-07-10 15:26:31,537 INFO L109 eAbstractionObserver]: Analyzing ICFG modsf.c [2020-07-10 15:26:31,547 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:26:31,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:26:31,571 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:26:31,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:26:31,601 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:26:31,601 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:26:31,601 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:26:31,602 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:26:31,602 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:26:31,602 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:26:31,602 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:26:31,626 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-10 15:26:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-10 15:26:31,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:31,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:26:31,635 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:31,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:31,642 INFO L82 PathProgramCache]: Analyzing trace with hash -173101897, now seen corresponding path program 1 times [2020-07-10 15:26:31,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:31,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611280516] [2020-07-10 15:26:31,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:31,922 INFO L280 TraceCheckUtils]: 0: Hoare triple {52#(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; {43#true} is VALID [2020-07-10 15:26:31,922 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 15:26:31,924 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {43#true} {43#true} #109#return; {43#true} is VALID [2020-07-10 15:26:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:31,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {43#true} ~cond := #in~cond; {43#true} is VALID [2020-07-10 15:26:31,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {43#true} assume 0 == ~cond;assume false; {44#false} is VALID [2020-07-10 15:26:31,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-10 15:26:31,941 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {44#false} {43#true} #105#return; {44#false} is VALID [2020-07-10 15:26:31,943 INFO L263 TraceCheckUtils]: 0: Hoare triple {43#true} call ULTIMATE.init(); {52#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:31,944 INFO L280 TraceCheckUtils]: 1: Hoare triple {52#(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; {43#true} is VALID [2020-07-10 15:26:31,944 INFO L280 TraceCheckUtils]: 2: Hoare triple {43#true} assume true; {43#true} is VALID [2020-07-10 15:26:31,945 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {43#true} {43#true} #109#return; {43#true} is VALID [2020-07-10 15:26:31,945 INFO L263 TraceCheckUtils]: 4: Hoare triple {43#true} call #t~ret14 := main(); {43#true} is VALID [2020-07-10 15:26:31,946 INFO L280 TraceCheckUtils]: 5: Hoare triple {43#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {43#true} is VALID [2020-07-10 15:26:31,946 INFO L280 TraceCheckUtils]: 6: Hoare triple {43#true} assume !(~N~0 <= 0); {43#true} is VALID [2020-07-10 15:26:31,947 INFO L263 TraceCheckUtils]: 7: Hoare triple {43#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {43#true} is VALID [2020-07-10 15:26:31,947 INFO L280 TraceCheckUtils]: 8: Hoare triple {43#true} ~cond := #in~cond; {43#true} is VALID [2020-07-10 15:26:31,948 INFO L280 TraceCheckUtils]: 9: Hoare triple {43#true} assume 0 == ~cond;assume false; {44#false} is VALID [2020-07-10 15:26:31,949 INFO L280 TraceCheckUtils]: 10: Hoare triple {44#false} assume true; {44#false} is VALID [2020-07-10 15:26:31,949 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {44#false} {43#true} #105#return; {44#false} is VALID [2020-07-10 15:26:31,950 INFO L280 TraceCheckUtils]: 12: Hoare triple {44#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; {44#false} is VALID [2020-07-10 15:26:31,951 INFO L280 TraceCheckUtils]: 13: Hoare triple {44#false} assume !(~i~0 < ~N~0); {44#false} is VALID [2020-07-10 15:26:31,951 INFO L280 TraceCheckUtils]: 14: Hoare triple {44#false} ~i~0 := 0; {44#false} is VALID [2020-07-10 15:26:31,952 INFO L280 TraceCheckUtils]: 15: Hoare triple {44#false} assume !(~i~0 < ~N~0); {44#false} is VALID [2020-07-10 15:26:31,952 INFO L280 TraceCheckUtils]: 16: Hoare triple {44#false} ~i~0 := 0; {44#false} is VALID [2020-07-10 15:26:31,952 INFO L280 TraceCheckUtils]: 17: Hoare triple {44#false} assume !(~i~0 < ~N~0); {44#false} is VALID [2020-07-10 15:26:31,953 INFO L280 TraceCheckUtils]: 18: Hoare triple {44#false} ~i~0 := 0; {44#false} is VALID [2020-07-10 15:26:31,953 INFO L280 TraceCheckUtils]: 19: Hoare triple {44#false} assume !true; {44#false} is VALID [2020-07-10 15:26:31,954 INFO L280 TraceCheckUtils]: 20: Hoare triple {44#false} ~i~0 := 0; {44#false} is VALID [2020-07-10 15:26:31,954 INFO L280 TraceCheckUtils]: 21: Hoare triple {44#false} assume !!(~i~0 < ~N~0);call #t~mem13 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {44#false} is VALID [2020-07-10 15:26:31,955 INFO L263 TraceCheckUtils]: 22: Hoare triple {44#false} call __VERIFIER_assert((if 1 == #t~mem13 then 1 else 0)); {44#false} is VALID [2020-07-10 15:26:31,955 INFO L280 TraceCheckUtils]: 23: Hoare triple {44#false} ~cond := #in~cond; {44#false} is VALID [2020-07-10 15:26:31,955 INFO L280 TraceCheckUtils]: 24: Hoare triple {44#false} assume 0 == ~cond; {44#false} is VALID [2020-07-10 15:26:31,956 INFO L280 TraceCheckUtils]: 25: Hoare triple {44#false} assume !false; {44#false} is VALID [2020-07-10 15:26:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:26:31,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611280516] [2020-07-10 15:26:31,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:31,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:26:31,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911997988] [2020-07-10 15:26:31,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-10 15:26:31,977 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:31,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:26:32,046 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:32,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:26:32,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:32,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:26:32,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:32,061 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states. [2020-07-10 15:26:32,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:32,425 INFO L93 Difference]: Finished difference Result 70 states and 93 transitions. [2020-07-10 15:26:32,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:26:32,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-10 15:26:32,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:32,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2020-07-10 15:26:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:26:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2020-07-10 15:26:32,473 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 93 transitions. [2020-07-10 15:26:32,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:32,691 INFO L225 Difference]: With dead ends: 70 [2020-07-10 15:26:32,692 INFO L226 Difference]: Without dead ends: 35 [2020-07-10 15:26:32,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:26:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-10 15:26:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-07-10 15:26:32,765 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:32,766 INFO L82 GeneralOperation]: Start isEquivalent. First operand 35 states. Second operand 35 states. [2020-07-10 15:26:32,767 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-10 15:26:32,767 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-10 15:26:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:32,773 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-07-10 15:26:32,773 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-10 15:26:32,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:32,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:32,775 INFO L74 IsIncluded]: Start isIncluded. First operand 35 states. Second operand 35 states. [2020-07-10 15:26:32,775 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 35 states. [2020-07-10 15:26:32,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:32,780 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2020-07-10 15:26:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-10 15:26:32,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:32,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:32,783 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:32,784 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-07-10 15:26:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-07-10 15:26:32,790 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2020-07-10 15:26:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:32,790 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-07-10 15:26:32,791 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:26:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-07-10 15:26:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-10 15:26:32,792 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:32,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:26:32,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:26:32,793 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:32,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:32,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1503462707, now seen corresponding path program 1 times [2020-07-10 15:26:32,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:32,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805225528] [2020-07-10 15:26:32,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:32,947 INFO L280 TraceCheckUtils]: 0: Hoare triple {274#(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; {263#true} is VALID [2020-07-10 15:26:32,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {263#true} assume true; {263#true} is VALID [2020-07-10 15:26:32,948 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {263#true} {263#true} #109#return; {263#true} is VALID [2020-07-10 15:26:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:26:32,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {263#true} ~cond := #in~cond; {263#true} is VALID [2020-07-10 15:26:32,962 INFO L280 TraceCheckUtils]: 1: Hoare triple {263#true} assume !(0 == ~cond); {263#true} is VALID [2020-07-10 15:26:32,962 INFO L280 TraceCheckUtils]: 2: Hoare triple {263#true} assume true; {263#true} is VALID [2020-07-10 15:26:32,964 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {263#true} {268#(<= 1 ~N~0)} #105#return; {268#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:32,966 INFO L263 TraceCheckUtils]: 0: Hoare triple {263#true} call ULTIMATE.init(); {274#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:26:32,966 INFO L280 TraceCheckUtils]: 1: Hoare triple {274#(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; {263#true} is VALID [2020-07-10 15:26:32,967 INFO L280 TraceCheckUtils]: 2: Hoare triple {263#true} assume true; {263#true} is VALID [2020-07-10 15:26:32,967 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {263#true} {263#true} #109#return; {263#true} is VALID [2020-07-10 15:26:32,967 INFO L263 TraceCheckUtils]: 4: Hoare triple {263#true} call #t~ret14 := main(); {263#true} is VALID [2020-07-10 15:26:32,968 INFO L280 TraceCheckUtils]: 5: Hoare triple {263#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {263#true} is VALID [2020-07-10 15:26:32,969 INFO L280 TraceCheckUtils]: 6: Hoare triple {263#true} assume !(~N~0 <= 0); {268#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:32,970 INFO L263 TraceCheckUtils]: 7: Hoare triple {268#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {263#true} is VALID [2020-07-10 15:26:32,970 INFO L280 TraceCheckUtils]: 8: Hoare triple {263#true} ~cond := #in~cond; {263#true} is VALID [2020-07-10 15:26:32,971 INFO L280 TraceCheckUtils]: 9: Hoare triple {263#true} assume !(0 == ~cond); {263#true} is VALID [2020-07-10 15:26:32,971 INFO L280 TraceCheckUtils]: 10: Hoare triple {263#true} assume true; {263#true} is VALID [2020-07-10 15:26:32,972 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {263#true} {268#(<= 1 ~N~0)} #105#return; {268#(<= 1 ~N~0)} is VALID [2020-07-10 15:26:32,974 INFO L280 TraceCheckUtils]: 12: Hoare triple {268#(<= 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; {273#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-10 15:26:32,976 INFO L280 TraceCheckUtils]: 13: Hoare triple {273#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {264#false} is VALID [2020-07-10 15:26:32,976 INFO L280 TraceCheckUtils]: 14: Hoare triple {264#false} ~i~0 := 0; {264#false} is VALID [2020-07-10 15:26:32,976 INFO L280 TraceCheckUtils]: 15: Hoare triple {264#false} assume !(~i~0 < ~N~0); {264#false} is VALID [2020-07-10 15:26:32,977 INFO L280 TraceCheckUtils]: 16: Hoare triple {264#false} ~i~0 := 0; {264#false} is VALID [2020-07-10 15:26:32,977 INFO L280 TraceCheckUtils]: 17: Hoare triple {264#false} assume !(~i~0 < ~N~0); {264#false} is VALID [2020-07-10 15:26:32,978 INFO L280 TraceCheckUtils]: 18: Hoare triple {264#false} ~i~0 := 0; {264#false} is VALID [2020-07-10 15:26:32,978 INFO L280 TraceCheckUtils]: 19: Hoare triple {264#false} assume !(~i~0 < ~N~0); {264#false} is VALID [2020-07-10 15:26:32,979 INFO L280 TraceCheckUtils]: 20: Hoare triple {264#false} ~i~0 := 0; {264#false} is VALID [2020-07-10 15:26:32,979 INFO L280 TraceCheckUtils]: 21: Hoare triple {264#false} assume !!(~i~0 < ~N~0);call #t~mem13 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); {264#false} is VALID [2020-07-10 15:26:32,979 INFO L263 TraceCheckUtils]: 22: Hoare triple {264#false} call __VERIFIER_assert((if 1 == #t~mem13 then 1 else 0)); {264#false} is VALID [2020-07-10 15:26:32,979 INFO L280 TraceCheckUtils]: 23: Hoare triple {264#false} ~cond := #in~cond; {264#false} is VALID [2020-07-10 15:26:32,980 INFO L280 TraceCheckUtils]: 24: Hoare triple {264#false} assume 0 == ~cond; {264#false} is VALID [2020-07-10 15:26:32,980 INFO L280 TraceCheckUtils]: 25: Hoare triple {264#false} assume !false; {264#false} is VALID [2020-07-10 15:26:32,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:26:32,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805225528] [2020-07-10 15:26:32,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:26:32,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:26:32,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567131737] [2020-07-10 15:26:32,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-07-10 15:26:32,986 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:26:32,986 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:26:33,031 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:33,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:26:33,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:26:33,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:26:33,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:26:33,033 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 5 states. [2020-07-10 15:26:33,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:33,590 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-07-10 15:26:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:26:33,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-07-10 15:26:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:26:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2020-07-10 15:26:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:26:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 79 transitions. [2020-07-10 15:26:33,615 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 79 transitions. [2020-07-10 15:26:33,751 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 79 edges. 79 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:26:33,756 INFO L225 Difference]: With dead ends: 67 [2020-07-10 15:26:33,757 INFO L226 Difference]: Without dead ends: 47 [2020-07-10 15:26:33,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-10 15:26:33,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-07-10 15:26:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2020-07-10 15:26:33,824 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:26:33,824 INFO L82 GeneralOperation]: Start isEquivalent. First operand 47 states. Second operand 39 states. [2020-07-10 15:26:33,824 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 39 states. [2020-07-10 15:26:33,825 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 39 states. [2020-07-10 15:26:33,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:33,834 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2020-07-10 15:26:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2020-07-10 15:26:33,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:33,837 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:33,838 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 47 states. [2020-07-10 15:26:33,838 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 47 states. [2020-07-10 15:26:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:26:33,848 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2020-07-10 15:26:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2020-07-10 15:26:33,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:26:33,856 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:26:33,856 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:26:33,857 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:26:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-10 15:26:33,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2020-07-10 15:26:33,866 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 26 [2020-07-10 15:26:33,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:26:33,867 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2020-07-10 15:26:33,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:26:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2020-07-10 15:26:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-10 15:26:33,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:26:33,873 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] [2020-07-10 15:26:33,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:26:33,874 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:26:33,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:26:33,874 INFO L82 PathProgramCache]: Analyzing trace with hash -260192085, now seen corresponding path program 1 times [2020-07-10 15:26:33,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:26:33,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82868439] [2020-07-10 15:26:33,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:26:33,950 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-10 15:26:33,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1111987946] [2020-07-10 15:26:33,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 15:26:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:26:34,089 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:26:34,089 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:26:34,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-10 15:26:34,377 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:26:34,378 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:26:34,379 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:34,380 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:26:34,381 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L52-1 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 15:26:34,382 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-10 15:26:34,383 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L40-4 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-10 15:26:34,384 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-10 15:26:34,385 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-10 15:26:34,385 WARN L170 areAnnotationChecker]: L45-3 has no Hoare annotation [2020-07-10 15:26:34,385 WARN L170 areAnnotationChecker]: L45-4 has no Hoare annotation [2020-07-10 15:26:34,385 WARN L170 areAnnotationChecker]: L45-2 has no Hoare annotation [2020-07-10 15:26:34,385 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. [2020-07-10 15:26:34,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:26:34 BoogieIcfgContainer [2020-07-10 15:26:34,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:26:34,392 INFO L168 Benchmark]: Toolchain (without parser) took 4174.22 ms. Allocated memory was 145.8 MB in the beginning and 245.9 MB in the end (delta: 100.1 MB). Free memory was 102.1 MB in the beginning and 197.8 MB in the end (delta: -95.7 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:34,393 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:26:34,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.07 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.6 MB in the beginning and 184.2 MB in the end (delta: -82.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:34,395 INFO L168 Benchmark]: Boogie Preprocessor took 73.27 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 181.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:34,396 INFO L168 Benchmark]: RCFGBuilder took 670.47 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 153.4 MB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:26:34,397 INFO L168 Benchmark]: TraceAbstraction took 2861.21 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 152.8 MB in the beginning and 197.8 MB in the end (delta: -45.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 15:26:34,401 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 0.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 562.07 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.6 MB in the beginning and 184.2 MB in the end (delta: -82.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.27 ms. Allocated memory is still 205.5 MB. Free memory was 184.2 MB in the beginning and 181.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 670.47 ms. Allocated memory is still 205.5 MB. Free memory was 181.9 MB in the beginning and 153.4 MB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2861.21 ms. Allocated memory was 205.5 MB in the beginning and 245.9 MB in the end (delta: 40.4 MB). Free memory was 152.8 MB in the beginning and 197.8 MB in the end (delta: -45.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=6, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] 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