/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/indp1f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:28:14,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:28:14,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:28:14,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:28:14,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:28:14,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:28:14,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:28:14,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:28:14,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:28:14,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:28:14,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:28:14,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:28:14,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:28:14,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:28:14,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:28:14,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:28:14,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:28:14,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:28:14,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:28:14,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:28:14,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:28:14,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:28:14,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:28:14,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:28:14,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:28:14,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:28:14,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:28:14,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:28:14,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:28:14,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:28:14,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:28:14,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:28:14,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:28:14,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:28:14,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:28:14,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:28:14,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:28:14,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:28:14,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:28:14,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:28:14,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:28:14,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 10:28:14,665 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:28:14,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:28:14,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:28:14,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:28:14,667 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:28:14,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:28:14,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:28:14,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:28:14,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:28:14,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:28:14,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:28:14,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:28:14,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:28:14,669 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:28:14,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:28:14,669 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:28:14,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:28:14,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:28:14,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:28:14,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:28:14,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:28:14,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:28:14,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:28:14,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:28:14,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:28:14,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:28:14,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:28:14,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:28:14,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:28:14,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-21 10:28:15,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:28:15,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:28:15,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:28:15,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:28:15,226 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:28:15,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp1f.c [2020-09-21 10:28:15,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cefefbf4f/d1794a26be2e4d399d3884c444d8a07d/FLAGf24c359ee [2020-09-21 10:28:15,883 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:28:15,884 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp1f.c [2020-09-21 10:28:15,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cefefbf4f/d1794a26be2e4d399d3884c444d8a07d/FLAGf24c359ee [2020-09-21 10:28:16,195 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cefefbf4f/d1794a26be2e4d399d3884c444d8a07d [2020-09-21 10:28:16,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:28:16,218 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:28:16,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:28:16,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:28:16,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:28:16,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc4fd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16, skipping insertion in model container [2020-09-21 10:28:16,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:28:16,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:28:16,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:28:16,505 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:28:16,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:28:16,550 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:28:16,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16 WrapperNode [2020-09-21 10:28:16,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:28:16,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:28:16,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:28:16,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:28:16,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... [2020-09-21 10:28:16,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:28:16,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:28:16,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:28:16,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:28:16,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-21 10:28:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:28:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:28:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-21 10:28:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-21 10:28:16,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:28:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:28:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-21 10:28:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-21 10:28:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-21 10:28:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:28:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:28:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:28:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:28:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:28:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:28:16,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:28:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:28:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:28:17,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:28:17,057 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 10:28:17,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:28:17 BoogieIcfgContainer [2020-09-21 10:28:17,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:28:17,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:28:17,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:28:17,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:28:17,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:28:16" (1/3) ... [2020-09-21 10:28:17,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:28:17, skipping insertion in model container [2020-09-21 10:28:17,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:28:16" (2/3) ... [2020-09-21 10:28:17,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:28:17, skipping insertion in model container [2020-09-21 10:28:17,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:28:17" (3/3) ... [2020-09-21 10:28:17,072 INFO L109 eAbstractionObserver]: Analyzing ICFG indp1f.c [2020-09-21 10:28:17,085 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:28:17,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:28:17,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:28:17,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:28:17,157 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:28:17,157 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:28:17,157 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:28:17,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:28:17,158 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:28:17,158 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:28:17,158 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:28:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-09-21 10:28:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-21 10:28:17,187 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:28:17,188 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] [2020-09-21 10:28:17,188 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:28:17,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:28:17,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1155719453, now seen corresponding path program 1 times [2020-09-21 10:28:17,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:28:17,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138091029] [2020-09-21 10:28:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:28:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:28:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:28:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:28:17,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138091029] [2020-09-21 10:28:17,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:28:17,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:28:17,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719867090] [2020-09-21 10:28:17,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:28:17,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:28:17,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:28:17,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:28:17,474 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2020-09-21 10:28:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:28:17,618 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2020-09-21 10:28:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:28:17,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-09-21 10:28:17,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:28:17,633 INFO L225 Difference]: With dead ends: 64 [2020-09-21 10:28:17,634 INFO L226 Difference]: Without dead ends: 32 [2020-09-21 10:28:17,639 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 [2020-09-21 10:28:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-21 10:28:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-09-21 10:28:17,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 10:28:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-09-21 10:28:17,687 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2020-09-21 10:28:17,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:28:17,688 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-09-21 10:28:17,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:28:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-09-21 10:28:17,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-21 10:28:17,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:28:17,689 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] [2020-09-21 10:28:17,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:28:17,690 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:28:17,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:28:17,691 INFO L82 PathProgramCache]: Analyzing trace with hash -124144225, now seen corresponding path program 1 times [2020-09-21 10:28:17,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:28:17,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409328031] [2020-09-21 10:28:17,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:28:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:28:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-09-21 10:28:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:28:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:28:17,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409328031] [2020-09-21 10:28:17,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:28:17,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 10:28:17,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145168908] [2020-09-21 10:28:17,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 10:28:17,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:28:17,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 10:28:17,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:28:17,836 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 5 states. [2020-09-21 10:28:18,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:28:18,007 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2020-09-21 10:28:18,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 10:28:18,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-21 10:28:18,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:28:18,012 INFO L225 Difference]: With dead ends: 59 [2020-09-21 10:28:18,012 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 10:28:18,014 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 [2020-09-21 10:28:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 10:28:18,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35. [2020-09-21 10:28:18,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-21 10:28:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-09-21 10:28:18,032 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2020-09-21 10:28:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:28:18,032 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-09-21 10:28:18,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 10:28:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-09-21 10:28:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 10:28:18,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:28:18,034 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] [2020-09-21 10:28:18,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:28:18,035 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:28:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:28:18,036 INFO L82 PathProgramCache]: Analyzing trace with hash -191015719, now seen corresponding path program 1 times [2020-09-21 10:28:18,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:28:18,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460387894] [2020-09-21 10:28:18,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:28:18,057 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-09-21 10:28:18,057 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-09-21 10:28:18,058 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 10:28:18,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:28:18,087 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-09-21 10:28:18,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 10:28:18 BoogieIcfgContainer [2020-09-21 10:28:18,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 10:28:18,092 INFO L168 Benchmark]: Toolchain (without parser) took 1879.81 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 104.1 MB in the beginning and 105.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,094 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.56 ms. Allocated memory is still 141.0 MB. Free memory was 103.4 MB in the beginning and 93.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,096 INFO L168 Benchmark]: Boogie Preprocessor took 123.61 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 93.2 MB in the beginning and 181.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,097 INFO L168 Benchmark]: RCFGBuilder took 387.46 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 163.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,098 INFO L168 Benchmark]: TraceAbstraction took 1024.12 ms. Allocated memory is still 203.4 MB. Free memory was 163.6 MB in the beginning and 105.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2020-09-21 10:28:18,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.56 ms. Allocated memory is still 141.0 MB. Free memory was 103.4 MB in the beginning and 93.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.61 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 93.2 MB in the beginning and 181.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.46 ms. Allocated memory is still 203.4 MB. Free memory was 181.4 MB in the beginning and 163.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1024.12 ms. Allocated memory is still 203.4 MB. Free memory was 163.6 MB in the beginning and 105.9 MB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int N; [L21] N = __VERIFIER_nondet_int() [L22] COND FALSE !(N <= 0) [L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L11] COND FALSE !(!cond) [L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L25] int i; [L26] long long *a = malloc(sizeof(long long)*N); [L28] i=0 [L28] COND TRUE i