/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 20:31:37,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 20:31:37,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 20:31:37,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 20:31:37,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 20:31:37,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 20:31:37,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 20:31:37,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 20:31:37,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 20:31:37,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 20:31:37,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 20:31:37,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 20:31:37,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 20:31:37,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 20:31:37,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 20:31:37,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 20:31:37,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 20:31:37,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 20:31:37,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 20:31:37,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 20:31:37,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 20:31:37,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 20:31:37,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 20:31:37,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 20:31:37,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 20:31:37,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 20:31:37,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 20:31:37,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 20:31:37,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 20:31:37,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 20:31:37,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 20:31:37,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 20:31:37,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 20:31:37,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 20:31:37,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 20:31:37,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 20:31:37,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 20:31:37,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 20:31:37,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 20:31:37,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 20:31:37,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 20:31:37,285 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 [2020-10-27 20:31:37,344 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 20:31:37,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 20:31:37,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 20:31:37,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 20:31:37,347 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 20:31:37,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 20:31:37,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 20:31:37,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 20:31:37,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 20:31:37,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 20:31:37,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 20:31:37,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 20:31:37,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 20:31:37,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 20:31:37,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 20:31:37,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 20:31:37,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 20:31:37,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 20:31:37,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 20:31:37,351 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 20:31:37,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 20:31:37,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 20:31:37,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 20:31:37,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 20:31:37,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 20:31:37,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 20:31:37,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 20:31:37,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 20:31:37,353 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 20:31:37,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 20:31:37,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 20:31:37,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 20:31:37,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 20:31:37,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 20:31:37,783 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 20:31:37,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-27 20:31:37,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0841c6be/e6641d6db28b4405adeb74eaaec1a45f/FLAGf90342d12 [2020-10-27 20:31:38,628 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 20:31:38,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-27 20:31:38,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0841c6be/e6641d6db28b4405adeb74eaaec1a45f/FLAGf90342d12 [2020-10-27 20:31:38,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c0841c6be/e6641d6db28b4405adeb74eaaec1a45f [2020-10-27 20:31:38,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 20:31:38,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 20:31:38,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 20:31:38,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 20:31:38,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 20:31:38,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:31:38" (1/1) ... [2020-10-27 20:31:38,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31570f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:38, skipping insertion in model container [2020-10-27 20:31:38,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:31:38" (1/1) ... [2020-10-27 20:31:38,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 20:31:39,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 20:31:39,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:31:39,193 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 20:31:39,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 20:31:39,228 INFO L208 MainTranslator]: Completed translation [2020-10-27 20:31:39,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39 WrapperNode [2020-10-27 20:31:39,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 20:31:39,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 20:31:39,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 20:31:39,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 20:31:39,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (1/1) ... [2020-10-27 20:31:39,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 20:31:39,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 20:31:39,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 20:31:39,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 20:31:39,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (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 [2020-10-27 20:31:39,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 20:31:39,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 20:31:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 20:31:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 20:31:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 20:31:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 20:31:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 20:31:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 20:31:39,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 20:31:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 20:31:39,837 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 20:31:39,837 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 20:31:39,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:31:39 BoogieIcfgContainer [2020-10-27 20:31:39,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 20:31:39,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 20:31:39,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 20:31:39,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 20:31:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:31:38" (1/3) ... [2020-10-27 20:31:39,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e01b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:31:39, skipping insertion in model container [2020-10-27 20:31:39,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:31:39" (2/3) ... [2020-10-27 20:31:39,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e01b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:31:39, skipping insertion in model container [2020-10-27 20:31:39,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:31:39" (3/3) ... [2020-10-27 20:31:39,867 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_by_3.c [2020-10-27 20:31:39,881 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 20:31:39,886 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 20:31:39,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 20:31:39,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 20:31:39,948 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 20:31:39,948 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 20:31:39,948 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 20:31:39,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 20:31:39,949 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 20:31:39,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 20:31:39,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 20:31:39,976 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-27 20:31:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-27 20:31:39,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:31:39,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:31:39,984 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:31:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:31:39,996 INFO L82 PathProgramCache]: Analyzing trace with hash 223266057, now seen corresponding path program 1 times [2020-10-27 20:31:40,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:31:40,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829171016] [2020-10-27 20:31:40,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:31:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:40,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 20:31:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-10-27 20:31:40,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:40,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 20:31:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:31:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 20:31:40,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 20:31:41,420 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2020-10-27 20:31:41,837 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2020-10-27 20:31:41,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:31:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:41,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:41,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:31:41,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:41,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:31:41,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:31:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:31:41,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:31:41,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:31:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:31:41,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829171016] [2020-10-27 20:31:41,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:31:41,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 20:31:41,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317548790] [2020-10-27 20:31:41,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 20:31:41,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:31:41,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 20:31:41,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-27 20:31:41,989 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 8 states. [2020-10-27 20:31:42,489 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 48 [2020-10-27 20:31:42,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:31:42,819 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2020-10-27 20:31:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 20:31:42,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-27 20:31:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:31:42,831 INFO L225 Difference]: With dead ends: 70 [2020-10-27 20:31:42,831 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 20:31:42,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-10-27 20:31:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 20:31:42,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-10-27 20:31:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 20:31:42,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-27 20:31:42,883 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-10-27 20:31:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:31:42,883 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-27 20:31:42,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 20:31:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-27 20:31:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 20:31:42,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:31:42,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:31:42,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 20:31:42,886 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:31:42,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:31:42,886 INFO L82 PathProgramCache]: Analyzing trace with hash -599349885, now seen corresponding path program 1 times [2020-10-27 20:31:42,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:31:42,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276230533] [2020-10-27 20:31:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:31:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:42,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:43,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:44,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:44,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 20:31:44,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 20:31:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1524 [2020-10-27 20:31:44,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:31:44,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 20:31:44,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 20:31:44,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:31:44,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:31:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:44,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:44,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:31:44,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 20:31:44,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:44,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:31:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:31:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:31:44,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:31:44,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:31:44,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276230533] [2020-10-27 20:31:44,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:31:44,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 20:31:44,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642684392] [2020-10-27 20:31:44,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 20:31:44,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:31:44,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 20:31:44,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 20:31:44,543 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 5 states. [2020-10-27 20:31:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:31:44,708 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-10-27 20:31:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 20:31:44,709 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-27 20:31:44,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:31:44,710 INFO L225 Difference]: With dead ends: 30 [2020-10-27 20:31:44,710 INFO L226 Difference]: Without dead ends: 21 [2020-10-27 20:31:44,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 20:31:44,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-27 20:31:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-27 20:31:44,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-27 20:31:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-27 20:31:44,719 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 18 [2020-10-27 20:31:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:31:44,720 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-27 20:31:44,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 20:31:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-27 20:31:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 20:31:44,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:31:44,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:31:44,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 20:31:44,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:31:44,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:31:44,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1183817470, now seen corresponding path program 1 times [2020-10-27 20:31:44,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:31:44,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560779234] [2020-10-27 20:31:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:31:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:44,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:44,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:45,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:45,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 20:31:45,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 20:31:45,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 502 [2020-10-27 20:31:45,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 20:31:45,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 20:31:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 20:31:45,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 20:31:45,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:31:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:45,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:45,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:45,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:31:45,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 20:31:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:31:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:31:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:31:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 20:31:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:31:45,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560779234] [2020-10-27 20:31:45,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 20:31:45,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 20:31:45,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027740047] [2020-10-27 20:31:45,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 20:31:45,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:31:45,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 20:31:45,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 20:31:45,427 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 5 states. [2020-10-27 20:31:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:31:45,630 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-27 20:31:45,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 20:31:45,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-27 20:31:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:31:45,632 INFO L225 Difference]: With dead ends: 30 [2020-10-27 20:31:45,632 INFO L226 Difference]: Without dead ends: 19 [2020-10-27 20:31:45,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 20:31:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-27 20:31:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-27 20:31:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-27 20:31:45,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-27 20:31:45,644 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 18 [2020-10-27 20:31:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:31:45,645 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-27 20:31:45,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 20:31:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-27 20:31:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-27 20:31:45,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:31:45,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:31:45,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 20:31:45,647 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:31:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:31:45,648 INFO L82 PathProgramCache]: Analyzing trace with hash -216450879, now seen corresponding path program 1 times [2020-10-27 20:31:45,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:31:45,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276862203] [2020-10-27 20:31:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:31:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:45,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:45,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 20:31:45,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:45,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-10-27 20:31:45,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:31:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:31:45,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 20:31:45,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:31:46,265 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2020-10-27 20:31:57,054 WARN L193 SmtUtils]: Spent 10.73 s on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2020-10-27 20:31:57,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:31:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:57,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:57,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:31:57,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:57,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 20:31:57,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:31:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:31:57,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:31:57,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:31:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 20:31:57,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276862203] [2020-10-27 20:31:57,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:31:57,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 20:31:57,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650773253] [2020-10-27 20:31:57,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:31:57,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:31:57,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:31:57,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-27 20:31:57,213 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2020-10-27 20:31:57,649 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-10-27 20:31:57,932 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2020-10-27 20:31:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:31:58,175 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-10-27 20:31:58,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 20:31:58,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-27 20:31:58,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:31:58,176 INFO L225 Difference]: With dead ends: 30 [2020-10-27 20:31:58,176 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 20:31:58,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-27 20:31:58,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 20:31:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 20:31:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 20:31:58,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-27 20:31:58,185 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2020-10-27 20:31:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:31:58,186 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-27 20:31:58,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:31:58,186 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-27 20:31:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 20:31:58,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 20:31:58,187 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 20:31:58,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 20:31:58,187 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 20:31:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 20:31:58,188 INFO L82 PathProgramCache]: Analyzing trace with hash -962774007, now seen corresponding path program 2 times [2020-10-27 20:31:58,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 20:31:58,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989179627] [2020-10-27 20:31:58,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 20:31:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:31:58,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:31:58,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:31:58,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 20:31:58,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:31:58,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-10-27 20:31:58,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:31:58,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 20:31:58,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 20:31:58,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 20:31:58,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:32:00,801 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (div c_~SIZE~0 4294967296))) (and (<= (+ (* 8589934593 c_main_~i~0) (* 36893488151714070528 .cse0)) (+ (* 12297829383904690176 (div (+ (* c_main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 c_~SIZE~0))) (let ((.cse1 (* 4294967296 (div c_main_~i~0 4294967296)))) (or (<= (+ c_main_~i~0 (* 4294967296 .cse0)) (+ .cse1 c_~SIZE~0)) (<= (+ .cse1 4294967297) c_main_~i~0))))) is different from false [2020-10-27 20:32:01,057 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-10-27 20:32:01,505 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 63 [2020-10-27 20:32:01,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 20:32:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 20:32:01,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 20:32:01,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 20:32:01,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 20:32:01,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 20:32:01,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 20:32:01,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 20:32:01,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 20:32:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 20:32:01,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 20:32:01,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 20:32:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2020-10-27 20:32:01,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989179627] [2020-10-27 20:32:01,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 20:32:01,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 20:32:01,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006911580] [2020-10-27 20:32:01,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 20:32:01,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 20:32:01,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 20:32:01,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=44, Unknown=1, NotChecked=12, Total=72 [2020-10-27 20:32:01,625 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-10-27 20:32:03,870 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (div c_~SIZE~0 4294967296))) (let ((.cse0 (* 4294967296 .cse2))) (and (= |c_#t~string5.offset| |c_old(#t~string5.offset)|) (= |c_old(#length)| |c_#length|) (= |c_#t~string6.base| |c_old(#t~string6.base)|) (= c_~SIZE~0 |c_old(~SIZE~0)|) (= |c_#t~string6.offset| |c_old(#t~string6.offset)|) (let ((.cse1 (* 4294967296 (div c_main_~i~0 4294967296)))) (or (<= (+ c_main_~i~0 .cse0) (+ .cse1 c_~SIZE~0)) (<= (+ .cse1 4294967297) c_main_~i~0))) (= |c_#t~string4.offset| |c_old(#t~string4.offset)|) (<= (+ c_main_~n~0 .cse0) (+ (* 4294967296 (div c_main_~n~0 4294967296)) c_~SIZE~0)) (= |c_old(#valid)| |c_#valid|) (= |c_#t~string5.base| |c_old(#t~string5.base)|) (<= (+ (* 8589934593 c_main_~i~0) (* 36893488151714070528 .cse2)) (+ (* 12297829383904690176 (div (+ (* c_main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 c_~SIZE~0))) (= |c_#t~string4.base| |c_old(#t~string4.base)|) (= |c_#NULL.base| |c_old(#NULL.base)|) (= |c_#NULL.offset| |c_old(#NULL.offset)|)))) is different from false [2020-10-27 20:32:18,443 WARN L193 SmtUtils]: Spent 6.25 s on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-10-27 20:32:31,488 WARN L193 SmtUtils]: Spent 8.66 s on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 20:32:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 20:32:35,776 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-10-27 20:32:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 20:32:35,776 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-27 20:32:35,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 20:32:35,777 INFO L225 Difference]: With dead ends: 21 [2020-10-27 20:32:35,777 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 20:32:35,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=8, NotChecked=50, Total=240 [2020-10-27 20:32:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 20:32:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 20:32:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 20:32:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 20:32:35,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-27 20:32:35,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 20:32:35,779 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 20:32:35,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 20:32:35,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 20:32:35,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 20:32:35,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 20:32:35,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 20:32:35,925 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 164 [2020-10-27 20:33:43,449 WARN L193 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 150 DAG size of output: 100 [2020-10-27 20:33:43,790 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2020-10-27 20:33:48,077 WARN L193 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 65 DAG size of output: 39 [2020-10-27 20:35:25,623 WARN L193 SmtUtils]: Spent 1.63 m on a formula simplification. DAG size of input: 136 DAG size of output: 86 [2020-10-27 20:35:25,627 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-27 20:35:25,627 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-27 20:35:25,627 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-27 20:35:25,628 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-27 20:35:25,628 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:35:25,628 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~SIZE~0 |old(~SIZE~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-27 20:35:25,628 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:35:25,628 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 20:35:25,628 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-27 20:35:25,628 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 20:35:25,628 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 20:35:25,629 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2020-10-27 20:35:25,629 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-27 20:35:25,629 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2020-10-27 20:35:25,629 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2020-10-27 20:35:25,630 INFO L270 CegarLoopResult]: At program point L29-2(lines 29 31) the Hoare annotation is: (let ((.cse19 (* 4294967296 (div main_~n~0 4294967296))) (.cse18 (div main_~i~0 4294967296))) (let ((.cse0 (* .cse18 4294967296)) (.cse4 (<= (+ (* 4294967296 (div main_~j~0 4294967296)) main_~n~0) (+ .cse19 main_~j~0)))) (or (let ((.cse8 (* 4294967296 .cse18))) (let ((.cse1 (+ .cse8 2147483647))) (let ((.cse2 (< .cse1 main_~i~0)) (.cse3 (div ~SIZE~0 4294967296))) (and (or (and (= (+ main_~j~0 .cse0) main_~i~0) (<= main_~i~0 .cse1)) (and .cse2 (= main_~i~0 (+ main_~j~0 .cse0 4294967296)))) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 .cse3)) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 8589934595)) 4294967296)) (* 8589934593 ~SIZE~0) 24595658767809380352)) .cse4 (let ((.cse17 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse16 (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse17 (- 4294967296))) 3))) (let ((.cse15 (div .cse16 4294967296))) (let ((.cse10 (+ (* 4294967297 main_~i~0) (* 1431655765 main_~j~0) (* 2863311531 main_~k~0) (* 4294967296 .cse3))) (.cse11 (* 4294967296 .cse15)) (.cse12 (* 6148914694099828736 .cse18)) (.cse13 (* 8589934592 .cse16)) (.cse14 (* 12297829383904690176 .cse17)) (.cse5 (* 2 .cse16)) (.cse6 (* 8589934592 .cse3)) (.cse7 (* 8589934592 .cse15)) (.cse9 (* 2 ~SIZE~0))) (or (<= (+ main_~i~0 .cse5 .cse6 1) (+ main_~j~0 .cse7 .cse8 .cse9)) (and (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0 6148914694099828736)) .cse2) (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0)) (and (<= (+ main_~i~0 .cse5 .cse6) (+ main_~j~0 .cse7 .cse8 .cse9 4294967295)) .cse2)))))) (<= (+ main_~n~0 (* 4294967296 (div main_~k~0 4294967296))) (+ .cse19 main_~k~0)))))) (and (= main_~k~0 main_~j~0) (<= main_~i~0 0) (= main_~i~0 (+ main_~k~0 .cse0)) .cse4 (< 0 (+ .cse18 1)))))) [2020-10-27 20:35:25,630 INFO L270 CegarLoopResult]: At program point L29-3(lines 29 31) the Hoare annotation is: (let ((.cse1 (div main_~i~0 4294967296))) (let ((.cse0 (* .cse1 4294967296))) (or (and (= main_~k~0 main_~j~0) (<= main_~i~0 0) (= main_~i~0 (+ main_~k~0 .cse0)) (< 0 (+ .cse1 1))) (let ((.cse8 (* 4294967296 .cse1))) (let ((.cse2 (+ .cse8 2147483647))) (let ((.cse3 (< .cse2 main_~i~0)) (.cse4 (* 4294967296 (div main_~n~0 4294967296)))) (and (or (and (= (+ main_~j~0 .cse0) main_~i~0) (<= main_~i~0 .cse2)) (and .cse3 (= main_~i~0 (+ main_~j~0 .cse0 4294967296)))) (<= (+ (* 4294967296 (div main_~j~0 4294967296)) main_~n~0) (+ .cse4 main_~j~0)) (let ((.cse18 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse17 (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse18 (- 4294967296))) 3))) (let ((.cse15 (div .cse17 4294967296)) (.cse16 (div ~SIZE~0 4294967296))) (let ((.cse10 (+ (* 4294967297 main_~i~0) (* 1431655765 main_~j~0) (* 2863311531 main_~k~0) (* 4294967296 .cse16))) (.cse11 (* 4294967296 .cse15)) (.cse12 (* 6148914694099828736 .cse1)) (.cse13 (* 8589934592 .cse17)) (.cse14 (* 12297829383904690176 .cse18)) (.cse5 (* 2 .cse17)) (.cse6 (* 8589934592 .cse16)) (.cse7 (* 8589934592 .cse15)) (.cse9 (* 2 ~SIZE~0))) (or (<= (+ main_~i~0 .cse5 .cse6 1) (+ main_~j~0 .cse7 .cse8 .cse9)) (and (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0 6148914694099828736)) .cse3) (<= .cse10 (+ .cse11 .cse12 .cse13 .cse14 ~SIZE~0)) (and (<= (+ main_~i~0 .cse5 .cse6) (+ main_~j~0 .cse7 .cse8 .cse9 4294967295)) .cse3)))))) (<= (+ main_~n~0 (* 4294967296 (div main_~k~0 4294967296))) (+ .cse4 main_~k~0))))))))) [2020-10-27 20:35:25,630 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 16 34) no Hoare annotation was computed. [2020-10-27 20:35:25,631 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 27) the Hoare annotation is: (let ((.cse3 (div main_~i~0 4294967296))) (let ((.cse2 (* .cse3 4294967296))) (let ((.cse4 (let ((.cse5 (* 4294967296 (div main_~n~0 4294967296)))) (or (and (<= main_~n~0 (+ .cse5 main_~j~0)) (<= (div main_~j~0 4294967296) 0)) (and (<= main_~n~0 (+ .cse5 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))))) (.cse0 (= (+ main_~j~0 .cse2) main_~i~0))) (or (and (let ((.cse1 (+ (* 4294967296 .cse3) 2147483647))) (or (and .cse0 (<= main_~i~0 .cse1)) (and (< .cse1 main_~i~0) (= main_~i~0 (+ main_~j~0 .cse2 4294967296))))) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 (div ~SIZE~0 4294967296))) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 8589934595)) 4294967296)) (* 8589934593 ~SIZE~0) 24595658767809380352)) .cse4) (and (<= main_~i~0 0) .cse4 .cse0 (< 0 (+ .cse3 1))))))) [2020-10-27 20:35:25,631 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2020-10-27 20:35:25,631 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-27 20:35:25,631 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 23) the Hoare annotation is: (let ((.cse2 (div ~SIZE~0 4294967296))) (let ((.cse0 (* 4294967296 .cse2))) (let ((.cse3 (<= (+ main_~n~0 .cse0) (+ (* 4294967296 (div main_~n~0 4294967296)) ~SIZE~0))) (.cse1 (div main_~i~0 4294967296))) (or (and (<= (+ main_~i~0 .cse0) (+ (* 4294967296 .cse1) ~SIZE~0)) (<= (+ (* 8589934593 main_~i~0) (* 36893488151714070528 .cse2)) (+ (* 12297829383904690176 (div (+ (* main_~i~0 3) (- 3)) 4294967296)) (* 8589934593 ~SIZE~0))) .cse3) (and (<= main_~i~0 0) .cse3 (< 0 (+ .cse1 1))))))) [2020-10-27 20:35:25,631 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2020-10-27 20:35:25,631 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 16 34) no Hoare annotation was computed. [2020-10-27 20:35:25,632 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-27 20:35:25,632 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 16 34) the Hoare annotation is: true [2020-10-27 20:35:25,632 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2020-10-27 20:35:25,632 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-27 20:35:25,632 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 8 13) no Hoare annotation was computed. [2020-10-27 20:35:25,632 INFO L274 CegarLoopResult]: For program point L9(lines 9 11) no Hoare annotation was computed. [2020-10-27 20:35:25,632 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-10-27 20:35:25,633 INFO L274 CegarLoopResult]: For program point L9-2(lines 8 13) no Hoare annotation was computed. [2020-10-27 20:35:25,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:35:25 BoogieIcfgContainer [2020-10-27 20:35:25,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 20:35:25,680 INFO L168 Benchmark]: Toolchain (without parser) took 226702.61 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 127.7 MB in the beginning and 192.4 MB in the end (delta: -64.8 MB). Peak memory consumption was 119.5 MB. Max. memory is 8.0 GB. [2020-10-27 20:35:25,681 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 20:35:25,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.05 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 117.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:35:25,683 INFO L168 Benchmark]: Boogie Preprocessor took 41.95 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 20:35:25,684 INFO L168 Benchmark]: RCFGBuilder took 567.02 ms. Allocated memory is still 152.0 MB. Free memory was 116.0 MB in the beginning and 101.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 20:35:25,687 INFO L168 Benchmark]: TraceAbstraction took 225819.84 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 135.6 MB in the beginning and 192.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 126.4 MB. Max. memory is 8.0 GB. [2020-10-27 20:35:25,695 INFO L339 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 152.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 247.05 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 117.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.95 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 567.02 ms. Allocated memory is still 152.0 MB. Free memory was 116.0 MB in the beginning and 101.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 225819.84 ms. Allocated memory was 152.0 MB in the beginning and 219.2 MB in the end (delta: 67.1 MB). Free memory was 135.6 MB in the beginning and 192.4 MB in the end (delta: -56.9 MB). Peak memory consumption was 126.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((j + i / 4294967296 * 4294967296 == i && i <= 4294967296 * (i / 4294967296) + 2147483647) || (4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296)) && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -8589934595) / 4294967296) + 8589934593 * SIZE + 24595658767809380352) && 4294967296 * (j / 4294967296) + n <= 4294967296 * (n / 4294967296) + j) && (((i + 2 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 8589934592 * (SIZE / 4294967296) + 1 <= j + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 4294967296 * (i / 4294967296) + 2 * SIZE || (4294967297 * i + 1431655765 * j + 2863311531 * k + 4294967296 * (SIZE / 4294967296) <= 4294967296 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 6148914694099828736 * (i / 4294967296) + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 12297829383904690176 * ((i + j + k) / 4294967296) + SIZE + 6148914694099828736 && 4294967296 * (i / 4294967296) + 2147483647 < i)) || 4294967297 * i + 1431655765 * j + 2863311531 * k + 4294967296 * (SIZE / 4294967296) <= 4294967296 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 6148914694099828736 * (i / 4294967296) + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 12297829383904690176 * ((i + j + k) / 4294967296) + SIZE) || (i + 2 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3) + 8589934592 * (SIZE / 4294967296) <= j + 8589934592 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 4294967296 * (i / 4294967296) + 2 * SIZE + 4294967295 && 4294967296 * (i / 4294967296) + 2147483647 < i))) && n + 4294967296 * (k / 4294967296) <= 4294967296 * (n / 4294967296) + k) || ((((k == j && i <= 0) && i == k + i / 4294967296 * 4294967296) && 4294967296 * (j / 4294967296) + n <= 4294967296 * (n / 4294967296) + j) && 0 < i / 4294967296 + 1) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((j + i / 4294967296 * 4294967296 == i && i <= 4294967296 * (i / 4294967296) + 2147483647) || (4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296)) && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -8589934595) / 4294967296) + 8589934593 * SIZE + 24595658767809380352) && ((n <= 4294967296 * (n / 4294967296) + j && j / 4294967296 <= 0) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0))) || (((i <= 0 && ((n <= 4294967296 * (n / 4294967296) + j && j / 4294967296 <= 0) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0))) && j + i / 4294967296 * 4294967296 == i) && 0 < i / 4294967296 + 1) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((i + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (i / 4294967296) + SIZE && 8589934593 * i + 36893488151714070528 * (SIZE / 4294967296) <= 12297829383904690176 * ((i * 3 + -3) / 4294967296) + 8589934593 * SIZE) && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) || ((i <= 0 && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) && 0 < i / 4294967296 + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.8s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 36.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 169.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 129 SDslu, 118 SDs, 0 SdLazy, 308 SolverSat, 37 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 46.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 25 PreInvPairs, 37 NumberOfFragments, 1019 HoareAnnotationTreeSize, 25 FomulaSimplifications, 730 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 1166 FormulaSimplificationTreeSizeReductionInter, 169.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.8s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 38686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...