/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/ss4f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:27:14,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:27:14,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:27:14,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:27:14,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:27:14,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:27:14,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:27:14,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:27:14,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:27:14,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:27:14,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:27:14,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:27:14,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:27:14,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:27:14,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:27:14,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:27:14,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:27:14,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:27:14,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:27:14,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:27:14,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:27:14,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:27:14,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:27:14,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:27:14,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:27:14,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:27:14,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:27:14,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:27:14,294 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 15:27:14,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:27:14,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:27:14,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:27:14,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:27:14,314 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:27:14,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:27:14,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:27:14,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:27:14,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:27:14,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:27:14,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:27:14,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:27:14,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:27:14,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:27:14,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:27:14,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:27:14,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:14,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:27:14,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:27:14,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:27:14,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:27:14,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:27:14,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:27:14,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:27:14,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:27:14,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:27:14,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:27:14,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:27:14,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:27:14,703 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:27:14,706 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss4f.c [2020-07-10 15:27:14,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d33c035/61cdb72bcfc74dd09214a12de079aeb5/FLAG11fe9c874 [2020-07-10 15:27:15,387 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:27:15,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss4f.c [2020-07-10 15:27:15,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d33c035/61cdb72bcfc74dd09214a12de079aeb5/FLAG11fe9c874 [2020-07-10 15:27:15,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d33c035/61cdb72bcfc74dd09214a12de079aeb5 [2020-07-10 15:27:15,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:27:15,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:27:15,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:15,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:27:15,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:27:15,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:15" (1/1) ... [2020-07-10 15:27:15,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719b6a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:15, skipping insertion in model container [2020-07-10 15:27:15,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:15" (1/1) ... [2020-07-10 15:27:15,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:27:15,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:27:15,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:16,003 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:27:16,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:16,056 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:27:16,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16 WrapperNode [2020-07-10 15:27:16,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:16,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:27:16,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:27:16,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:27:16,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (1/1) ... [2020-07-10 15:27:16,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:27:16,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:27:16,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:27:16,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:27:16,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (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 15:27:16,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:27:16,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:27:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:27:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:27:16,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:27:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:27:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:27:16,330 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:27:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:27:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:27:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 15:27:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:27:16,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:27:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 15:27:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:27:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:27:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:27:16,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:27:16,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:27:16,895 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:27:16,898 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-10 15:27:16,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:16 BoogieIcfgContainer [2020-07-10 15:27:16,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:27:16,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:27:16,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:27:16,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:27:16,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:27:15" (1/3) ... [2020-07-10 15:27:16,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff9f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:16, skipping insertion in model container [2020-07-10 15:27:16,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:16" (2/3) ... [2020-07-10 15:27:16,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff9f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:16, skipping insertion in model container [2020-07-10 15:27:16,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:16" (3/3) ... [2020-07-10 15:27:16,924 INFO L109 eAbstractionObserver]: Analyzing ICFG ss4f.c [2020-07-10 15:27:16,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:27:16,947 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:27:16,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:27:16,989 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:27:16,989 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:27:16,989 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:27:16,989 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:27:16,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:27:16,990 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:27:16,990 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:27:16,990 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:27:17,010 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-10 15:27:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 15:27:17,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:17,018 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] [2020-07-10 15:27:17,019 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1562148239, now seen corresponding path program 1 times [2020-07-10 15:27:17,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:17,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621897363] [2020-07-10 15:27:17,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:17,285 INFO L280 TraceCheckUtils]: 0: Hoare triple {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {40#true} is VALID [2020-07-10 15:27:17,286 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-10 15:27:17,287 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-10 15:27:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:17,297 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-10 15:27:17,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-10 15:27:17,299 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-10 15:27:17,299 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-10 15:27:17,302 INFO L263 TraceCheckUtils]: 0: Hoare triple {40#true} call ULTIMATE.init(); {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:27:17,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {49#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {40#true} is VALID [2020-07-10 15:27:17,302 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume true; {40#true} is VALID [2020-07-10 15:27:17,303 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {40#true} {40#true} #95#return; {40#true} is VALID [2020-07-10 15:27:17,303 INFO L263 TraceCheckUtils]: 4: Hoare triple {40#true} call #t~ret13 := main(); {40#true} is VALID [2020-07-10 15:27:17,304 INFO L280 TraceCheckUtils]: 5: Hoare triple {40#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {40#true} is VALID [2020-07-10 15:27:17,304 INFO L280 TraceCheckUtils]: 6: Hoare triple {40#true} assume !(~N~0 <= 0); {40#true} is VALID [2020-07-10 15:27:17,305 INFO L263 TraceCheckUtils]: 7: Hoare triple {40#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {40#true} is VALID [2020-07-10 15:27:17,305 INFO L280 TraceCheckUtils]: 8: Hoare triple {40#true} ~cond := #in~cond; {40#true} is VALID [2020-07-10 15:27:17,306 INFO L280 TraceCheckUtils]: 9: Hoare triple {40#true} assume 0 == ~cond;assume false; {41#false} is VALID [2020-07-10 15:27:17,307 INFO L280 TraceCheckUtils]: 10: Hoare triple {41#false} assume true; {41#false} is VALID [2020-07-10 15:27:17,307 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {41#false} {40#true} #91#return; {41#false} is VALID [2020-07-10 15:27:17,307 INFO L280 TraceCheckUtils]: 12: Hoare triple {41#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; {41#false} is VALID [2020-07-10 15:27:17,308 INFO L280 TraceCheckUtils]: 13: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:27:17,308 INFO L280 TraceCheckUtils]: 14: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-10 15:27:17,309 INFO L280 TraceCheckUtils]: 15: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:27:17,309 INFO L280 TraceCheckUtils]: 16: Hoare triple {41#false} ~i~0 := 0; {41#false} is VALID [2020-07-10 15:27:17,310 INFO L280 TraceCheckUtils]: 17: Hoare triple {41#false} assume !(~i~0 < ~N~0); {41#false} is VALID [2020-07-10 15:27:17,310 INFO L280 TraceCheckUtils]: 18: Hoare triple {41#false} call write~int(~N~0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {41#false} is VALID [2020-07-10 15:27:17,310 INFO L280 TraceCheckUtils]: 19: Hoare triple {41#false} assume !true; {41#false} is VALID [2020-07-10 15:27:17,311 INFO L280 TraceCheckUtils]: 20: Hoare triple {41#false} call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {41#false} is VALID [2020-07-10 15:27:17,311 INFO L263 TraceCheckUtils]: 21: Hoare triple {41#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 * (1 + ~N~0) then 1 else 0)); {41#false} is VALID [2020-07-10 15:27:17,312 INFO L280 TraceCheckUtils]: 22: Hoare triple {41#false} ~cond := #in~cond; {41#false} is VALID [2020-07-10 15:27:17,312 INFO L280 TraceCheckUtils]: 23: Hoare triple {41#false} assume 0 == ~cond; {41#false} is VALID [2020-07-10 15:27:17,312 INFO L280 TraceCheckUtils]: 24: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-10 15:27:17,316 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 15:27:17,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621897363] [2020-07-10 15:27:17,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:17,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:27:17,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565603341] [2020-07-10 15:27:17,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-10 15:27:17,332 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:17,336 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:27:17,395 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:17,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:27:17,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:17,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:27:17,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:27:17,410 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-07-10 15:27:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:17,693 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-07-10 15:27:17,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:27:17,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-07-10 15:27:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:27:17,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-10 15:27:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:27:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2020-07-10 15:27:17,738 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 83 transitions. [2020-07-10 15:27:17,920 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 83 edges. 83 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:17,935 INFO L225 Difference]: With dead ends: 64 [2020-07-10 15:27:17,935 INFO L226 Difference]: Without dead ends: 30 [2020-07-10 15:27:17,940 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 15:27:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-07-10 15:27:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-07-10 15:27:18,003 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:18,004 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states. [2020-07-10 15:27:18,004 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 15:27:18,005 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 15:27:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:18,010 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-07-10 15:27:18,010 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-10 15:27:18,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:18,011 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:18,011 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states. [2020-07-10 15:27:18,011 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 30 states. [2020-07-10 15:27:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:18,016 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2020-07-10 15:27:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-10 15:27:18,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:18,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:18,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:18,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-07-10 15:27:18,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-07-10 15:27:18,023 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2020-07-10 15:27:18,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:18,024 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-07-10 15:27:18,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:27:18,024 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-07-10 15:27:18,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 15:27:18,026 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:18,026 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] [2020-07-10 15:27:18,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:27:18,027 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:18,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:18,028 INFO L82 PathProgramCache]: Analyzing trace with hash 369304979, now seen corresponding path program 1 times [2020-07-10 15:27:18,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:18,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727495732] [2020-07-10 15:27:18,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:18,060 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-10 15:27:18,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1510514446] [2020-07-10 15:27:18,061 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 15:27:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:18,127 INFO L264 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-10 15:27:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:18,145 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 15:27:18,258 INFO L263 TraceCheckUtils]: 0: Hoare triple {236#true} call ULTIMATE.init(); {236#true} is VALID [2020-07-10 15:27:18,259 INFO L280 TraceCheckUtils]: 1: Hoare triple {236#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {236#true} is VALID [2020-07-10 15:27:18,259 INFO L280 TraceCheckUtils]: 2: Hoare triple {236#true} assume true; {236#true} is VALID [2020-07-10 15:27:18,260 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {236#true} {236#true} #95#return; {236#true} is VALID [2020-07-10 15:27:18,260 INFO L263 TraceCheckUtils]: 4: Hoare triple {236#true} call #t~ret13 := main(); {236#true} is VALID [2020-07-10 15:27:18,261 INFO L280 TraceCheckUtils]: 5: Hoare triple {236#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {236#true} is VALID [2020-07-10 15:27:18,262 INFO L280 TraceCheckUtils]: 6: Hoare triple {236#true} assume !(~N~0 <= 0); {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,263 INFO L263 TraceCheckUtils]: 7: Hoare triple {259#(< 0 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,265 INFO L280 TraceCheckUtils]: 8: Hoare triple {259#(< 0 ~N~0)} ~cond := #in~cond; {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,266 INFO L280 TraceCheckUtils]: 9: Hoare triple {259#(< 0 ~N~0)} assume !(0 == ~cond); {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,267 INFO L280 TraceCheckUtils]: 10: Hoare triple {259#(< 0 ~N~0)} assume true; {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,269 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {259#(< 0 ~N~0)} {259#(< 0 ~N~0)} #91#return; {259#(< 0 ~N~0)} is VALID [2020-07-10 15:27:18,271 INFO L280 TraceCheckUtils]: 12: Hoare triple {259#(< 0 ~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; {278#(and (<= main_~i~0 0) (< 0 ~N~0))} is VALID [2020-07-10 15:27:18,273 INFO L280 TraceCheckUtils]: 13: Hoare triple {278#(and (<= main_~i~0 0) (< 0 ~N~0))} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-10 15:27:18,273 INFO L280 TraceCheckUtils]: 14: Hoare triple {237#false} ~i~0 := 0; {237#false} is VALID [2020-07-10 15:27:18,274 INFO L280 TraceCheckUtils]: 15: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-10 15:27:18,274 INFO L280 TraceCheckUtils]: 16: Hoare triple {237#false} ~i~0 := 0; {237#false} is VALID [2020-07-10 15:27:18,275 INFO L280 TraceCheckUtils]: 17: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-10 15:27:18,275 INFO L280 TraceCheckUtils]: 18: Hoare triple {237#false} call write~int(~N~0, ~#sum~0.base, ~#sum~0.offset, 8);~i~0 := 0; {237#false} is VALID [2020-07-10 15:27:18,275 INFO L280 TraceCheckUtils]: 19: Hoare triple {237#false} assume !(~i~0 < ~N~0); {237#false} is VALID [2020-07-10 15:27:18,276 INFO L280 TraceCheckUtils]: 20: Hoare triple {237#false} call #t~mem12 := read~int(~#sum~0.base, ~#sum~0.offset, 8); {237#false} is VALID [2020-07-10 15:27:18,276 INFO L263 TraceCheckUtils]: 21: Hoare triple {237#false} call __VERIFIER_assert((if #t~mem12 == ~N~0 * (1 + ~N~0) then 1 else 0)); {237#false} is VALID [2020-07-10 15:27:18,276 INFO L280 TraceCheckUtils]: 22: Hoare triple {237#false} ~cond := #in~cond; {237#false} is VALID [2020-07-10 15:27:18,276 INFO L280 TraceCheckUtils]: 23: Hoare triple {237#false} assume 0 == ~cond; {237#false} is VALID [2020-07-10 15:27:18,277 INFO L280 TraceCheckUtils]: 24: Hoare triple {237#false} assume !false; {237#false} is VALID [2020-07-10 15:27:18,279 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 15:27:18,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727495732] [2020-07-10 15:27:18,280 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-07-10 15:27:18,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510514446] [2020-07-10 15:27:18,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:18,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 15:27:18,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781107200] [2020-07-10 15:27:18,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-10 15:27:18,284 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:18,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 15:27:18,325 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:18,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 15:27:18,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:18,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 15:27:18,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:27:18,326 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 4 states. [2020-07-10 15:27:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:18,570 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-07-10 15:27:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 15:27:18,570 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-10 15:27:18,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:27:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2020-07-10 15:27:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:27:18,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2020-07-10 15:27:18,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 62 transitions. [2020-07-10 15:27:18,678 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 62 edges. 62 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:18,680 INFO L225 Difference]: With dead ends: 53 [2020-07-10 15:27:18,681 INFO L226 Difference]: Without dead ends: 38 [2020-07-10 15:27:18,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:27:18,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-07-10 15:27:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-07-10 15:27:18,721 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:18,721 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 34 states. [2020-07-10 15:27:18,722 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 34 states. [2020-07-10 15:27:18,722 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 34 states. [2020-07-10 15:27:18,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:18,726 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-07-10 15:27:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-07-10 15:27:18,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:18,727 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:18,727 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 38 states. [2020-07-10 15:27:18,727 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 38 states. [2020-07-10 15:27:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:18,731 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2020-07-10 15:27:18,731 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-07-10 15:27:18,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:18,732 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:18,732 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:18,732 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:18,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-10 15:27:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-07-10 15:27:18,736 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 25 [2020-07-10 15:27:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:18,736 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-07-10 15:27:18,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 15:27:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-07-10 15:27:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-10 15:27:18,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:18,738 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] [2020-07-10 15:27:18,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-10 15:27:18,952 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:18,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1815337701, now seen corresponding path program 1 times [2020-07-10 15:27:18,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:18,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206798471] [2020-07-10 15:27:18,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:19,053 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-10 15:27:19,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194372723] [2020-07-10 15:27:19,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 15:27:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:19,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:27:19,179 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:27:19,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-10 15:27:19,443 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:27:19,443 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:19,443 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:19,444 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:27:19,444 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:27:19,444 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:27:19,444 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:27:19,444 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:19,445 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:19,445 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:27:19,445 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-10 15:27:19,445 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:27:19,445 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: L11-2 has no Hoare annotation [2020-07-10 15:27:19,446 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:27:19,447 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:27:19,447 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:27:19,447 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:27:19,447 WARN L170 areAnnotationChecker]: L13-1 has no Hoare annotation [2020-07-10 15:27:19,447 WARN L170 areAnnotationChecker]: L13-3 has no Hoare annotation [2020-07-10 15:27:19,448 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-10 15:27:19,448 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:27:19,448 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-10 15:27:19,448 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:27:19,448 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:27:19,449 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:27:19,449 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-10 15:27:19,449 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-10 15:27:19,449 WARN L170 areAnnotationChecker]: L30-4 has no Hoare annotation [2020-07-10 15:27:19,449 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L35-4 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-10 15:27:19,450 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L40-3 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L40-4 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L40-2 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-10 15:27:19,451 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-10 15:27:19,452 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-10 15:27:19,452 WARN L170 areAnnotationChecker]: L46-4 has no Hoare annotation [2020-07-10 15:27:19,452 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-10 15:27:19,452 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-10 15:27:19,452 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-10 15:27:19,453 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 15:27:19,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:27:19 BoogieIcfgContainer [2020-07-10 15:27:19,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:27:19,461 INFO L168 Benchmark]: Toolchain (without parser) took 3719.08 ms. Allocated memory was 143.7 MB in the beginning and 234.9 MB in the end (delta: 91.2 MB). Free memory was 101.6 MB in the beginning and 93.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,462 INFO L168 Benchmark]: CDTParser took 1.99 ms. Allocated memory is still 143.7 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.05 ms. Allocated memory is still 143.7 MB. Free memory was 101.3 MB in the beginning and 89.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,464 INFO L168 Benchmark]: Boogie Preprocessor took 193.94 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 89.9 MB in the beginning and 179.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,465 INFO L168 Benchmark]: RCFGBuilder took 653.07 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 152.6 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,466 INFO L168 Benchmark]: TraceAbstraction took 2549.19 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 152.6 MB in the beginning and 93.7 MB in the end (delta: 58.8 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:19,471 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 1.99 ms. Allocated memory is still 143.7 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.05 ms. Allocated memory is still 143.7 MB. Free memory was 101.3 MB in the beginning and 89.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.94 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 89.9 MB in the beginning and 179.8 MB in the end (delta: -89.9 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 653.07 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 152.6 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2549.19 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 152.6 MB in the beginning and 93.7 MB in the end (delta: 58.8 MB). Peak memory consumption was 91.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int N; VAL [\old(N)=4, N=0] [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) VAL [\old(N)=0, N=1] [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(cond)=1, \old(N)=0, N=1] [L11] COND FALSE !(!cond) VAL [\old(cond)=1, \old(N)=0, cond=1, N=1] [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [\old(N)=0, N=1] [L25] int i; [L26] long long sum[1]; [L27] long long *a = malloc(sizeof(long long)*N); [L29] sum[0] = 0 [L30] i=0 VAL [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(long long)*N)={-1:0}, N=1, sum={2:0}] [L30] COND TRUE i