/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 true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s3iff.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:41:36,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:41:36,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:41:37,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:41:37,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:41:37,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:41:37,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:41:37,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:41:37,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:41:37,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:41:37,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:41:37,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:41:37,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:41:37,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:41:37,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:41:37,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:41:37,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:41:37,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:41:37,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:41:37,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:41:37,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:41:37,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:41:37,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:41:37,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:41:37,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:41:37,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:41:37,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:41:37,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:41:37,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:41:37,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:41:37,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:41:37,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:41:37,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:41:37,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:41:37,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:41:37,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:41:37,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:41:37,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:41:37,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:41:37,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:41:37,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:41:37,041 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 [2020-08-19 03:41:37,063 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:41:37,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:41:37,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:41:37,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:41:37,065 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:41:37,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:41:37,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:41:37,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:41:37,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:41:37,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:41:37,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:41:37,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:41:37,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:41:37,067 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:41:37,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:41:37,067 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:41:37,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:41:37,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:41:37,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:41:37,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:41:37,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:41:37,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:41:37,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:41:37,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:41:37,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:41:37,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:41:37,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:41:37,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:41:37,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:41:37,070 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 -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:41:37,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:41:37,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:41:37,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:41:37,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:41:37,417 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:41:37,418 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s3iff.c [2020-08-19 03:41:37,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ca7ec0a6/335a6a88e4494586896da5f13a891103/FLAGf003600c9 [2020-08-19 03:41:37,975 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:41:37,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s3iff.c [2020-08-19 03:41:37,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ca7ec0a6/335a6a88e4494586896da5f13a891103/FLAGf003600c9 [2020-08-19 03:41:38,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4ca7ec0a6/335a6a88e4494586896da5f13a891103 [2020-08-19 03:41:38,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:41:38,368 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:41:38,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:41:38,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:41:38,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:41:38,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9ce53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38, skipping insertion in model container [2020-08-19 03:41:38,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:41:38,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:41:38,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:41:38,669 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:41:38,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:41:38,709 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:41:38,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38 WrapperNode [2020-08-19 03:41:38,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:41:38,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:41:38,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:41:38,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:41:38,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (1/1) ... [2020-08-19 03:41:38,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:41:38,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:41:38,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:41:38,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:41:38,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (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 [2020-08-19 03:41:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:41:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:41:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-19 03:41:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 03:41:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:41:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-19 03:41:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:41:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:41:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-19 03:41:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:41:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:41:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:41:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:41:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:41:39,202 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:41:39,203 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-19 03:41:39,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:41:39 BoogieIcfgContainer [2020-08-19 03:41:39,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:41:39,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:41:39,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:41:39,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:41:39,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:41:38" (1/3) ... [2020-08-19 03:41:39,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa3172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:41:39, skipping insertion in model container [2020-08-19 03:41:39,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:41:38" (2/3) ... [2020-08-19 03:41:39,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffa3172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:41:39, skipping insertion in model container [2020-08-19 03:41:39,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:41:39" (3/3) ... [2020-08-19 03:41:39,232 INFO L109 eAbstractionObserver]: Analyzing ICFG s3iff.c [2020-08-19 03:41:39,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:41:39,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:41:39,265 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:41:39,289 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:41:39,289 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:41:39,289 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:41:39,289 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:41:39,289 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:41:39,290 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:41:39,290 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:41:39,290 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:41:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-08-19 03:41:39,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 03:41:39,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:41:39,319 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] [2020-08-19 03:41:39,320 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:41:39,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:41:39,325 INFO L82 PathProgramCache]: Analyzing trace with hash -432131487, now seen corresponding path program 1 times [2020-08-19 03:41:39,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:41:39,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374700059] [2020-08-19 03:41:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:41:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:41:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 03:41:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:41:39,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374700059] [2020-08-19 03:41:39,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:41:39,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-19 03:41:39,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93404522] [2020-08-19 03:41:39,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-19 03:41:39,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:41:39,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-19 03:41:39,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-19 03:41:39,593 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-08-19 03:41:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:41:39,725 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2020-08-19 03:41:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-19 03:41:39,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-08-19 03:41:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:41:39,747 INFO L225 Difference]: With dead ends: 54 [2020-08-19 03:41:39,747 INFO L226 Difference]: Without dead ends: 25 [2020-08-19 03:41:39,753 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 [2020-08-19 03:41:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-08-19 03:41:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-08-19 03:41:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-08-19 03:41:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-08-19 03:41:39,788 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2020-08-19 03:41:39,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:41:39,789 INFO L479 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-08-19 03:41:39,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-19 03:41:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-08-19 03:41:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 03:41:39,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:41:39,790 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] [2020-08-19 03:41:39,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:41:39,791 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:41:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:41:39,791 INFO L82 PathProgramCache]: Analyzing trace with hash -173966049, now seen corresponding path program 1 times [2020-08-19 03:41:39,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:41:39,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466345692] [2020-08-19 03:41:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:41:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:41:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 03:41:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:41:39,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466345692] [2020-08-19 03:41:39,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:41:39,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 03:41:39,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769188288] [2020-08-19 03:41:39,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 03:41:39,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:41:39,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 03:41:39,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-19 03:41:39,929 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-08-19 03:41:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:41:40,067 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2020-08-19 03:41:40,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-19 03:41:40,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-08-19 03:41:40,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:41:40,069 INFO L225 Difference]: With dead ends: 40 [2020-08-19 03:41:40,069 INFO L226 Difference]: Without dead ends: 30 [2020-08-19 03:41:40,070 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 [2020-08-19 03:41:40,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-19 03:41:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-08-19 03:41:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-08-19 03:41:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-08-19 03:41:40,079 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 21 [2020-08-19 03:41:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:41:40,079 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-08-19 03:41:40,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 03:41:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-08-19 03:41:40,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 03:41:40,081 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:41:40,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:41:40,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:41:40,081 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:41:40,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:41:40,082 INFO L82 PathProgramCache]: Analyzing trace with hash -445719797, now seen corresponding path program 1 times [2020-08-19 03:41:40,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:41:40,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370954820] [2020-08-19 03:41:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:41:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:40,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:41:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:40,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-19 03:41:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:41:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:41:40,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370954820] [2020-08-19 03:41:40,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 03:41:40,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-19 03:41:40,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585391603] [2020-08-19 03:41:40,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 03:41:40,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:41:40,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 03:41:40,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-08-19 03:41:40,473 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 12 states. [2020-08-19 03:41:40,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:41:40,935 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-08-19 03:41:40,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-19 03:41:40,936 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-08-19 03:41:40,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:41:40,938 INFO L225 Difference]: With dead ends: 42 [2020-08-19 03:41:40,939 INFO L226 Difference]: Without dead ends: 36 [2020-08-19 03:41:40,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2020-08-19 03:41:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-08-19 03:41:40,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2020-08-19 03:41:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-08-19 03:41:40,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-08-19 03:41:40,948 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 26 [2020-08-19 03:41:40,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:41:40,950 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-08-19 03:41:40,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 03:41:40,950 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-08-19 03:41:40,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-19 03:41:40,952 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:41:40,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 03:41:40,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:41:40,952 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:41:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:41:40,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1255066423, now seen corresponding path program 1 times [2020-08-19 03:41:40,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:41:40,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854383583] [2020-08-19 03:41:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:41:40,986 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-08-19 03:41:40,986 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-08-19 03:41:40,986 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 03:41:40,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:41:41,028 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-08-19 03:41:41,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 03:41:41 BoogieIcfgContainer [2020-08-19 03:41:41,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 03:41:41,034 INFO L168 Benchmark]: Toolchain (without parser) took 2662.57 ms. Allocated memory was 138.4 MB in the beginning and 231.7 MB in the end (delta: 93.3 MB). Free memory was 101.9 MB in the beginning and 141.9 MB in the end (delta: -40.0 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,035 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.83 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,041 INFO L168 Benchmark]: Boogie Preprocessor took 136.85 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.4 MB in the beginning and 178.0 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,042 INFO L168 Benchmark]: RCFGBuilder took 359.22 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 161.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,043 INFO L168 Benchmark]: TraceAbstraction took 1807.60 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 160.2 MB in the beginning and 141.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2020-08-19 03:41:41,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 338.83 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 91.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.85 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 91.4 MB in the beginning and 178.0 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 359.22 ms. Allocated memory is still 200.8 MB. Free memory was 178.0 MB in the beginning and 161.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1807.60 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 160.2 MB in the beginning and 141.9 MB in the end (delta: 18.3 MB). Peak memory consumption was 49.2 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 sum[1]; [L27] int *a = malloc(sizeof(int)*N); [L29] sum[0] = 1 [L30] i=0 [L30] COND TRUE i