/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:47:24,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:47:24,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:47:24,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:47:24,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:47:24,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:47:24,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:47:24,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:47:24,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:47:24,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:47:24,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:47:24,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:47:24,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:47:24,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:47:24,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:47:24,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:47:24,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:47:24,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:47:24,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:47:24,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:47:24,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:47:24,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:47:24,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:47:24,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:47:25,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:47:25,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:47:25,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:47:25,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:47:25,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:47:25,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:47:25,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:47:25,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:47:25,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:47:25,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:47:25,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:47:25,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:47:25,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:47:25,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:47:25,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:47:25,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:47:25,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:47:25,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:47:25,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:47:25,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:47:25,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:47:25,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:47:25,059 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:47:25,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:47:25,060 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:47:25,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:47:25,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:47:25,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:47:25,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:47:25,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:47:25,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:47:25,063 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:47:25,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:47:25,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:47:25,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:47:25,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:47:25,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:47:25,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:47:25,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:47:25,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:47:25,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:47:25,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:47:25,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:47:25,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:47:25,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:47:25,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:47:25,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:47:25,066 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.rcfgbuilder: Size of a code block -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:47:25,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:47:25,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:47:25,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:47:25,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:47:25,556 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:47:25,557 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2020-09-25 14:47:25,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da2596502/93bdf904efd64812abec9b8d2c50b13f/FLAGb1c17a6fe [2020-09-25 14:47:26,165 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:47:26,166 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2020-09-25 14:47:26,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da2596502/93bdf904efd64812abec9b8d2c50b13f/FLAGb1c17a6fe [2020-09-25 14:47:26,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da2596502/93bdf904efd64812abec9b8d2c50b13f [2020-09-25 14:47:26,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:47:26,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:47:26,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:26,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:47:26,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:47:26,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:26,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50428880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26, skipping insertion in model container [2020-09-25 14:47:26,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:26,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:47:26,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:47:26,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:26,849 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:47:26,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:47:26,896 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:47:26,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26 WrapperNode [2020-09-25 14:47:26,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:47:26,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:47:26,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:47:26,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:47:26,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:26,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:26,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:26,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:27,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:27,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:27,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... [2020-09-25 14:47:27,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:47:27,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:47:27,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:47:27,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:47:27,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:47:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:47:27,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:47:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 14:47:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 14:47:27,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:47:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:47:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:47:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 14:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 14:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:47:27,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:47:27,343 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 14:47:27,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:27 BoogieIcfgContainer [2020-09-25 14:47:27,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:47:27,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:47:27,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:47:27,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:47:27,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:47:26" (1/3) ... [2020-09-25 14:47:27,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64229b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:27, skipping insertion in model container [2020-09-25 14:47:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:47:26" (2/3) ... [2020-09-25 14:47:27,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64229b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:47:27, skipping insertion in model container [2020-09-25 14:47:27,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:47:27" (3/3) ... [2020-09-25 14:47:27,362 INFO L109 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2020-09-25 14:47:27,377 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:47:27,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:47:27,415 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:47:27,458 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:47:27,458 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:47:27,458 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:47:27,458 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:47:27,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:47:27,459 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:47:27,459 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:47:27,459 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:47:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-09-25 14:47:27,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 14:47:27,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:27,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:27,496 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash -2007421113, now seen corresponding path program 1 times [2020-09-25 14:47:27,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:27,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101229286] [2020-09-25 14:47:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:27,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:27,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:47:27,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:27,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 14:47:27,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:27,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:47:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:47:27,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:47:27,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:47:28,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:28,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:28,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:28,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:47:28,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:28,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:47:28,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:28,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:28,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:28,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101229286] [2020-09-25 14:47:28,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:28,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 14:47:28,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197172065] [2020-09-25 14:47:28,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:47:28,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:28,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:47:28,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:47:28,114 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2020-09-25 14:47:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:28,415 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2020-09-25 14:47:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:47:28,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 14:47:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:28,431 INFO L225 Difference]: With dead ends: 68 [2020-09-25 14:47:28,431 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 14:47:28,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:47:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 14:47:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2020-09-25 14:47:28,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-25 14:47:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2020-09-25 14:47:28,499 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 24 [2020-09-25 14:47:28,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:28,500 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2020-09-25 14:47:28,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:47:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2020-09-25 14:47:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 14:47:28,502 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:28,503 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:28,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:47:28,503 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:28,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:28,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1994781074, now seen corresponding path program 1 times [2020-09-25 14:47:28,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:28,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892190994] [2020-09-25 14:47:28,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:28,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:28,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:29,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:29,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-25 14:47:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 566 [2020-09-25 14:47:29,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:29,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:47:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 14:47:29,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:47:29,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:47:29,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:29,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:29,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:47:29,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:29,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:29,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:29,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:29,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:29,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:29,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:29,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 14:47:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:29,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:29,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:29,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:29,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:29,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:47:29,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:29,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:29,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:29,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:29,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:29,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 14:47:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:47:29,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892190994] [2020-09-25 14:47:29,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:29,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:29,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239791994] [2020-09-25 14:47:29,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:29,239 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:29,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:29,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:29,240 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 8 states. [2020-09-25 14:47:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:29,436 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-09-25 14:47:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:47:29,438 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2020-09-25 14:47:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:29,441 INFO L225 Difference]: With dead ends: 46 [2020-09-25 14:47:29,441 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 14:47:29,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:47:29,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 14:47:29,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 14:47:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 14:47:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 14:47:29,466 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 29 [2020-09-25 14:47:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:29,467 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 14:47:29,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:29,467 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 14:47:29,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-25 14:47:29,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:29,469 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:29,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:47:29,470 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:29,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1065397402, now seen corresponding path program 1 times [2020-09-25 14:47:29,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:29,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700497200] [2020-09-25 14:47:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 14:47:30,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:30,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-09-25 14:47:30,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:47:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:47:30,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:47:30,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:47:30,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:47:30,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:30,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:30,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:30,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 14:47:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:30,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:30,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:47:30,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:30,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:30,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 14:47:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:47:30,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:30,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:30,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 14:47:30,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700497200] [2020-09-25 14:47:30,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:47:30,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 14:47:30,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625097934] [2020-09-25 14:47:30,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:30,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:30,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:30,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:30,320 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 8 states. [2020-09-25 14:47:30,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:30,452 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2020-09-25 14:47:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:47:30,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2020-09-25 14:47:30,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:30,458 INFO L225 Difference]: With dead ends: 48 [2020-09-25 14:47:30,459 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 14:47:30,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:47:30,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 14:47:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 14:47:30,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 14:47:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2020-09-25 14:47:30,482 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 38 [2020-09-25 14:47:30,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:30,482 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2020-09-25 14:47:30,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2020-09-25 14:47:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-25 14:47:30,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:47:30,487 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:47:30,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:47:30,488 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:47:30,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:47:30,489 INFO L82 PathProgramCache]: Analyzing trace with hash 470853039, now seen corresponding path program 2 times [2020-09-25 14:47:30,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:47:30,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055231696] [2020-09-25 14:47:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:47:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:30,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 14:47:31,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:47:31,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-25 14:47:31,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:47:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 14:47:31,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 14:47:31,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:47:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:47:31,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:47:31,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:47:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:31,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:47:31,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-25 14:47:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:31,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:47:31,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:31,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:31,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 14:47:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:31,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:47:31,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:31,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:31,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-25 14:47:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:47:31,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:47:31,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:47:31,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:47:31,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:47:31,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:47:31,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:47:31,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:47:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:47:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:47:31,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:47:31,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:47:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 14:47:31,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055231696] [2020-09-25 14:47:31,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:47:31,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 14:47:31,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949724618] [2020-09-25 14:47:31,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 14:47:31,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:47:31,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 14:47:31,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:47:31,299 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 8 states. [2020-09-25 14:47:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:47:31,429 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2020-09-25 14:47:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 14:47:31,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-09-25 14:47:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:47:31,431 INFO L225 Difference]: With dead ends: 46 [2020-09-25 14:47:31,431 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:47:31,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-25 14:47:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:47:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:47:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:47:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:47:31,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-25 14:47:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:47:31,434 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:47:31,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 14:47:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:47:31,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:47:31,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:47:31,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:47:31,640 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 14:47:31,640 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:47:31,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 14:47:31,641 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 14:47:31,641 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 14:47:31,641 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 14:47:31,641 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 14:47:31,642 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 14:47:31,642 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 14:47:31,642 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 14:47:31,642 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 14:47:31,642 INFO L271 CegarLoopResult]: At program point L33(lines 14 34) the Hoare annotation is: true [2020-09-25 14:47:31,642 INFO L268 CegarLoopResult]: For program point L31(lines 27 32) no Hoare annotation was computed. [2020-09-25 14:47:31,643 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 14:47:31,643 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 14:47:31,643 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 14:47:31,643 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 14:47:31,644 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 34) no Hoare annotation was computed. [2020-09-25 14:47:31,644 INFO L264 CegarLoopResult]: At program point L27-3(lines 27 32) the Hoare annotation is: (and (<= 1 main_~MAXPATHLEN~0) (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (= main_~pathbuf_off~0 0) (= main_~glob2_pathbuf_off~0 0) (<= main_~bound_off~0 main_~MAXPATHLEN~0)) [2020-09-25 14:47:31,644 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 14:47:31,644 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 14:47:31,644 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 14:47:31,645 INFO L268 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-09-25 14:47:31,645 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 14:47:31,645 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 34) no Hoare annotation was computed. [2020-09-25 14:47:31,645 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (<= 1 main_~MAXPATHLEN~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (= main_~pathbuf_off~0 0) (= main_~glob2_pathbuf_off~0 0) (<= main_~bound_off~0 main_~MAXPATHLEN~0)) [2020-09-25 14:47:31,646 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 34) the Hoare annotation is: true [2020-09-25 14:47:31,646 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (and (<= 1 main_~MAXPATHLEN~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (= main_~pathbuf_off~0 0) (= main_~glob2_pathbuf_off~0 0) (<= main_~bound_off~0 main_~MAXPATHLEN~0)) [2020-09-25 14:47:31,646 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 14:47:31,646 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 14:47:31,646 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 14:47:31,647 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-25 14:47:31,647 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 14:47:31,647 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 14:47:31,647 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 14:47:31,647 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 14:47:31,647 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 14:47:31,648 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 14:47:31,648 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 14:47:31,648 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 14:47:31,648 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 14:47:31,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:47:31 BoogieIcfgContainer [2020-09-25 14:47:31,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:47:31,694 INFO L168 Benchmark]: Toolchain (without parser) took 5150.96 ms. Allocated memory was 116.4 MB in the beginning and 215.0 MB in the end (delta: 98.6 MB). Free memory was 74.8 MB in the beginning and 198.4 MB in the end (delta: -123.6 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,696 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 116.4 MB. Free memory was 91.9 MB in the beginning and 91.8 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.87 ms. Allocated memory was 116.4 MB in the beginning and 130.0 MB in the end (delta: 13.6 MB). Free memory was 74.1 MB in the beginning and 100.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,698 INFO L168 Benchmark]: Boogie Preprocessor took 119.25 ms. Allocated memory was 130.0 MB in the beginning and 162.5 MB in the end (delta: 32.5 MB). Free memory was 100.2 MB in the beginning and 148.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 835.8 kB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,699 INFO L168 Benchmark]: RCFGBuilder took 332.00 ms. Allocated memory is still 162.5 MB. Free memory was 148.4 MB in the beginning and 134.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,700 INFO L168 Benchmark]: TraceAbstraction took 4338.71 ms. Allocated memory was 162.5 MB in the beginning and 215.0 MB in the end (delta: 52.4 MB). Free memory was 134.3 MB in the beginning and 198.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. [2020-09-25 14:47:31,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 116.4 MB. Free memory was 91.9 MB in the beginning and 91.8 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.87 ms. Allocated memory was 116.4 MB in the beginning and 130.0 MB in the end (delta: 13.6 MB). Free memory was 74.1 MB in the beginning and 100.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.25 ms. Allocated memory was 130.0 MB in the beginning and 162.5 MB in the end (delta: 32.5 MB). Free memory was 100.2 MB in the beginning and 148.4 MB in the end (delta: -48.3 MB). Peak memory consumption was 835.8 kB. Max. memory is 7.1 GB. * RCFGBuilder took 332.00 ms. Allocated memory is still 162.5 MB. Free memory was 148.4 MB in the beginning and 134.7 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4338.71 ms. Allocated memory was 162.5 MB in the beginning and 215.0 MB in the end (delta: 52.4 MB). Free memory was 134.3 MB in the beginning and 198.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 90.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((1 <= MAXPATHLEN && glob2_pathlim_off <= MAXPATHLEN) && 0 <= glob2_p_off) && pathbuf_off == 0) && glob2_pathbuf_off == 0) && bound_off <= MAXPATHLEN - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 111 SDslu, 472 SDs, 0 SdLazy, 189 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=3, 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 23 NumberOfFragments, 69 HoareAnnotationTreeSize, 14 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 8416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 31/33 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...