/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/brs5f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:44:20,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:44:20,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:44:20,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:44:20,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:44:20,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:44:20,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:44:20,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:44:20,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:44:20,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:44:20,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:44:20,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:44:20,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:44:20,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:44:20,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:44:20,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:44:20,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:44:20,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:44:20,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:44:20,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:44:20,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:44:20,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:44:20,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:44:20,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:44:20,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:44:20,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:44:20,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:44:20,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:44:20,836 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 [2020-07-08 12:44:20,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:44:20,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:44:20,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:44:20,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:44:20,880 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:44:20,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:44:20,882 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:44:20,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:44:20,883 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:44:20,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:44:20,884 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:44:20,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:44:20,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:44:20,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:44:20,885 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:44:20,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:44:20,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:44:20,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:44:20,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:44:20,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:44:20,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:44:20,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:44:20,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:44:20,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:44:20,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:44:21,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:44:21,226 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:44:21,231 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:44:21,233 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:44:21,233 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:44:21,235 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/brs5f.c [2020-07-08 12:44:21,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb183a45/8264913799e14310a8c28b50108aae30/FLAGc8cabcfa6 [2020-07-08 12:44:21,868 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:44:21,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/brs5f.c [2020-07-08 12:44:21,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb183a45/8264913799e14310a8c28b50108aae30/FLAGc8cabcfa6 [2020-07-08 12:44:22,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb183a45/8264913799e14310a8c28b50108aae30 [2020-07-08 12:44:22,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:44:22,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:44:22,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:44:22,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:44:22,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:44:22,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c638e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22, skipping insertion in model container [2020-07-08 12:44:22,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:44:22,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:44:22,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:44:22,547 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:44:22,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:44:22,591 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:44:22,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22 WrapperNode [2020-07-08 12:44:22,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:44:22,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:44:22,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:44:22,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:44:22,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... [2020-07-08 12:44:22,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:44:22,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:44:22,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:44:22,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:44:22,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:44:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:44:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:44:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 12:44:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 12:44:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:44:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:44:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 12:44:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 12:44:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 12:44:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 12:44:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 12:44:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:44:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 12:44:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 12:44:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 12:44:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 12:44:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 12:44:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:44:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:44:23,323 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:44:23,324 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-08 12:44:23,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:44:23 BoogieIcfgContainer [2020-07-08 12:44:23,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:44:23,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:44:23,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:44:23,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:44:23,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:44:22" (1/3) ... [2020-07-08 12:44:23,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3d2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:44:23, skipping insertion in model container [2020-07-08 12:44:23,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:44:22" (2/3) ... [2020-07-08 12:44:23,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e3d2e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:44:23, skipping insertion in model container [2020-07-08 12:44:23,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:44:23" (3/3) ... [2020-07-08 12:44:23,349 INFO L109 eAbstractionObserver]: Analyzing ICFG brs5f.c [2020-07-08 12:44:23,362 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:44:23,372 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:44:23,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:44:23,424 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:44:23,424 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:44:23,424 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:44:23,424 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:44:23,425 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:44:23,425 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:44:23,425 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:44:23,425 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:44:23,447 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-07-08 12:44:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 12:44:23,454 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:44:23,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:44:23,455 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:44:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:44:23,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1824292310, now seen corresponding path program 1 times [2020-07-08 12:44:23,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:44:23,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184690827] [2020-07-08 12:44:23,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:44:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:23,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {45#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {36#true} is VALID [2020-07-08 12:44:23,740 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:44:23,741 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36#true} {36#true} #77#return; {36#true} is VALID [2020-07-08 12:44:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:23,753 INFO L280 TraceCheckUtils]: 0: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:44:23,755 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:44:23,755 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:44:23,755 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#false} {36#true} #73#return; {37#false} is VALID [2020-07-08 12:44:23,758 INFO L263 TraceCheckUtils]: 0: Hoare triple {36#true} call ULTIMATE.init(); {45#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:44:23,759 INFO L280 TraceCheckUtils]: 1: Hoare triple {45#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {36#true} is VALID [2020-07-08 12:44:23,759 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#true} assume true; {36#true} is VALID [2020-07-08 12:44:23,760 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36#true} {36#true} #77#return; {36#true} is VALID [2020-07-08 12:44:23,760 INFO L263 TraceCheckUtils]: 4: Hoare triple {36#true} call #t~ret7 := main(); {36#true} is VALID [2020-07-08 12:44:23,761 INFO L280 TraceCheckUtils]: 5: Hoare triple {36#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {36#true} is VALID [2020-07-08 12:44:23,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {36#true} assume !(~N~0 <= 0); {36#true} is VALID [2020-07-08 12:44:23,762 INFO L263 TraceCheckUtils]: 7: Hoare triple {36#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {36#true} is VALID [2020-07-08 12:44:23,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {36#true} ~cond := #in~cond; {36#true} is VALID [2020-07-08 12:44:23,763 INFO L280 TraceCheckUtils]: 9: Hoare triple {36#true} assume 0 == ~cond;assume false; {37#false} is VALID [2020-07-08 12:44:23,764 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#false} assume true; {37#false} is VALID [2020-07-08 12:44:23,764 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {37#false} {36#true} #73#return; {37#false} is VALID [2020-07-08 12:44:23,765 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#false} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {37#false} is VALID [2020-07-08 12:44:23,765 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#false} assume !(~i~0 < ~N~0); {37#false} is VALID [2020-07-08 12:44:23,766 INFO L280 TraceCheckUtils]: 14: Hoare triple {37#false} ~i~0 := 0; {37#false} is VALID [2020-07-08 12:44:23,766 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#false} assume !true; {37#false} is VALID [2020-07-08 12:44:23,767 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {37#false} is VALID [2020-07-08 12:44:23,767 INFO L263 TraceCheckUtils]: 17: Hoare triple {37#false} call __VERIFIER_assert((if #t~mem6 <= 5 * ~N~0 then 1 else 0)); {37#false} is VALID [2020-07-08 12:44:23,767 INFO L280 TraceCheckUtils]: 18: Hoare triple {37#false} ~cond := #in~cond; {37#false} is VALID [2020-07-08 12:44:23,768 INFO L280 TraceCheckUtils]: 19: Hoare triple {37#false} assume 0 == ~cond; {37#false} is VALID [2020-07-08 12:44:23,768 INFO L280 TraceCheckUtils]: 20: Hoare triple {37#false} assume !false; {37#false} is VALID [2020-07-08 12:44:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:44:23,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184690827] [2020-07-08 12:44:23,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:44:23,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 12:44:23,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3361081] [2020-07-08 12:44:23,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-08 12:44:23,799 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:44:23,803 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 12:44:23,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:44:23,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 12:44:23,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:44:23,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 12:44:23,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 12:44:23,906 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2020-07-08 12:44:24,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:24,150 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-07-08 12:44:24,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 12:44:24,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-08 12:44:24,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:44:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:44:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-08 12:44:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 12:44:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2020-07-08 12:44:24,190 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 71 transitions. [2020-07-08 12:44:24,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:44:24,339 INFO L225 Difference]: With dead ends: 56 [2020-07-08 12:44:24,340 INFO L226 Difference]: Without dead ends: 26 [2020-07-08 12:44:24,344 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 [2020-07-08 12:44:24,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-08 12:44:24,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-08 12:44:24,425 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:44:24,426 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-08 12:44:24,426 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-08 12:44:24,427 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-08 12:44:24,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:24,431 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-07-08 12:44:24,432 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-08 12:44:24,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:44:24,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:44:24,433 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-08 12:44:24,433 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-08 12:44:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:24,437 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2020-07-08 12:44:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-08 12:44:24,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:44:24,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:44:24,439 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:44:24,439 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:44:24,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-08 12:44:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-07-08 12:44:24,444 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 21 [2020-07-08 12:44:24,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:44:24,444 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-07-08 12:44:24,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 12:44:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-08 12:44:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-08 12:44:24,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:44:24,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:44:24,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:44:24,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:44:24,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:44:24,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1767537087, now seen corresponding path program 1 times [2020-07-08 12:44:24,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:44:24,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895782314] [2020-07-08 12:44:24,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:44:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:24,634 INFO L280 TraceCheckUtils]: 0: Hoare triple {217#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {206#true} is VALID [2020-07-08 12:44:24,634 INFO L280 TraceCheckUtils]: 1: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-08 12:44:24,635 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {206#true} {206#true} #77#return; {206#true} is VALID [2020-07-08 12:44:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:44:24,645 INFO L280 TraceCheckUtils]: 0: Hoare triple {206#true} ~cond := #in~cond; {206#true} is VALID [2020-07-08 12:44:24,646 INFO L280 TraceCheckUtils]: 1: Hoare triple {206#true} assume !(0 == ~cond); {206#true} is VALID [2020-07-08 12:44:24,646 INFO L280 TraceCheckUtils]: 2: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-08 12:44:24,648 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {206#true} {211#(<= 1 ~N~0)} #73#return; {211#(<= 1 ~N~0)} is VALID [2020-07-08 12:44:24,649 INFO L263 TraceCheckUtils]: 0: Hoare triple {206#true} call ULTIMATE.init(); {217#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 12:44:24,650 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {206#true} is VALID [2020-07-08 12:44:24,650 INFO L280 TraceCheckUtils]: 2: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-08 12:44:24,650 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {206#true} {206#true} #77#return; {206#true} is VALID [2020-07-08 12:44:24,651 INFO L263 TraceCheckUtils]: 4: Hoare triple {206#true} call #t~ret7 := main(); {206#true} is VALID [2020-07-08 12:44:24,651 INFO L280 TraceCheckUtils]: 5: Hoare triple {206#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {206#true} is VALID [2020-07-08 12:44:24,652 INFO L280 TraceCheckUtils]: 6: Hoare triple {206#true} assume !(~N~0 <= 0); {211#(<= 1 ~N~0)} is VALID [2020-07-08 12:44:24,653 INFO L263 TraceCheckUtils]: 7: Hoare triple {211#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {206#true} is VALID [2020-07-08 12:44:24,653 INFO L280 TraceCheckUtils]: 8: Hoare triple {206#true} ~cond := #in~cond; {206#true} is VALID [2020-07-08 12:44:24,653 INFO L280 TraceCheckUtils]: 9: Hoare triple {206#true} assume !(0 == ~cond); {206#true} is VALID [2020-07-08 12:44:24,654 INFO L280 TraceCheckUtils]: 10: Hoare triple {206#true} assume true; {206#true} is VALID [2020-07-08 12:44:24,655 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {206#true} {211#(<= 1 ~N~0)} #73#return; {211#(<= 1 ~N~0)} is VALID [2020-07-08 12:44:24,657 INFO L280 TraceCheckUtils]: 12: Hoare triple {211#(<= 1 ~N~0)} havoc ~i~0;call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8);call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {216#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-08 12:44:24,658 INFO L280 TraceCheckUtils]: 13: Hoare triple {216#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {207#false} is VALID [2020-07-08 12:44:24,659 INFO L280 TraceCheckUtils]: 14: Hoare triple {207#false} ~i~0 := 0; {207#false} is VALID [2020-07-08 12:44:24,659 INFO L280 TraceCheckUtils]: 15: Hoare triple {207#false} assume !(~i~0 < ~N~0); {207#false} is VALID [2020-07-08 12:44:24,659 INFO L280 TraceCheckUtils]: 16: Hoare triple {207#false} call #t~mem6 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {207#false} is VALID [2020-07-08 12:44:24,660 INFO L263 TraceCheckUtils]: 17: Hoare triple {207#false} call __VERIFIER_assert((if #t~mem6 <= 5 * ~N~0 then 1 else 0)); {207#false} is VALID [2020-07-08 12:44:24,660 INFO L280 TraceCheckUtils]: 18: Hoare triple {207#false} ~cond := #in~cond; {207#false} is VALID [2020-07-08 12:44:24,660 INFO L280 TraceCheckUtils]: 19: Hoare triple {207#false} assume 0 == ~cond; {207#false} is VALID [2020-07-08 12:44:24,661 INFO L280 TraceCheckUtils]: 20: Hoare triple {207#false} assume !false; {207#false} is VALID [2020-07-08 12:44:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 12:44:24,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895782314] [2020-07-08 12:44:24,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 12:44:24,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 12:44:24,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492001474] [2020-07-08 12:44:24,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-08 12:44:24,667 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 12:44:24,668 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 12:44:24,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:44:24,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 12:44:24,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-08 12:44:24,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 12:44:24,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 12:44:24,703 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 5 states. [2020-07-08 12:44:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:24,998 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2020-07-08 12:44:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 12:44:24,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-07-08 12:44:24,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 12:44:24,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:44:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-08 12:44:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 12:44:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-08 12:44:25,006 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 55 transitions. [2020-07-08 12:44:25,093 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 12:44:25,095 INFO L225 Difference]: With dead ends: 45 [2020-07-08 12:44:25,095 INFO L226 Difference]: Without dead ends: 32 [2020-07-08 12:44:25,097 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 [2020-07-08 12:44:25,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-07-08 12:44:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-07-08 12:44:25,130 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 12:44:25,131 INFO L82 GeneralOperation]: Start isEquivalent. First operand 32 states. Second operand 30 states. [2020-07-08 12:44:25,131 INFO L74 IsIncluded]: Start isIncluded. First operand 32 states. Second operand 30 states. [2020-07-08 12:44:25,131 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 30 states. [2020-07-08 12:44:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:25,134 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-08 12:44:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-08 12:44:25,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:44:25,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:44:25,136 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 32 states. [2020-07-08 12:44:25,136 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 32 states. [2020-07-08 12:44:25,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 12:44:25,139 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-08 12:44:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-07-08 12:44:25,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 12:44:25,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 12:44:25,140 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 12:44:25,140 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 12:44:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-08 12:44:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-08 12:44:25,143 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 21 [2020-07-08 12:44:25,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 12:44:25,144 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-08 12:44:25,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 12:44:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-08 12:44:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-08 12:44:25,146 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:44:25,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:44:25,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 12:44:25,147 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:44:25,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:44:25,147 INFO L82 PathProgramCache]: Analyzing trace with hash -395878216, now seen corresponding path program 1 times [2020-07-08 12:44:25,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:44:25,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910006302] [2020-07-08 12:44:25,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:44:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:44:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 12:44:25,288 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-08 12:44:25,290 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 12:44:25,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 12:44:25,373 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 12:44:25,373 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:44:25,373 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 12:44:25,373 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 12:44:25,374 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-08 12:44:25,375 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 12:44:25,375 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 12:44:25,375 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 12:44:25,375 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-08 12:44:25,375 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 12:44:25,376 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 12:44:25,380 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-08 12:44:25,381 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 12:44:25,383 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 12:44:25,383 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 12:44:25,391 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 12:44:25,392 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-08 12:44:25,392 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-08 12:44:25,394 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-08 12:44:25,394 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 12:44:25,394 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-08 12:44:25,394 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-08 12:44:25,395 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L38-3 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L38-4 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 12:44:25,396 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-08 12:44:25,397 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-08 12:44:25,397 WARN L170 areAnnotationChecker]: L38-2 has no Hoare annotation [2020-07-08 12:44:25,397 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. [2020-07-08 12:44:25,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 12:44:25 BoogieIcfgContainer [2020-07-08 12:44:25,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 12:44:25,404 INFO L168 Benchmark]: Toolchain (without parser) took 3162.73 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 101.5 MB in the beginning and 117.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,405 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.86 ms. Allocated memory is still 145.2 MB. Free memory was 101.3 MB in the beginning and 90.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,407 INFO L168 Benchmark]: Boogie Preprocessor took 177.92 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 90.3 MB in the beginning and 180.8 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,408 INFO L168 Benchmark]: RCFGBuilder took 558.93 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 156.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,409 INFO L168 Benchmark]: TraceAbstraction took 2066.57 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 117.2 MB in the end (delta: 38.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. [2020-07-08 12:44:25,413 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 0.88 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.86 ms. Allocated memory is still 145.2 MB. Free memory was 101.3 MB in the beginning and 90.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 177.92 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 90.3 MB in the beginning and 180.8 MB in the end (delta: -90.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 558.93 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 156.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2066.57 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 155.6 MB in the beginning and 117.2 MB in the end (delta: 38.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=10, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1, sum={2:0}] [L29] COND TRUE i