/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:12:20,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:12:20,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:12:20,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:12:20,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:12:20,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:12:20,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:12:20,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:12:20,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:12:20,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:12:20,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:12:20,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:12:20,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:12:20,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:12:20,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:12:20,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:12:20,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:12:20,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:12:20,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:12:20,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:12:20,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:12:20,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:12:20,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:12:20,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:12:20,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:12:20,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:12:20,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:12:20,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:12:20,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:12:20,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:12:20,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:12:20,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:12:20,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:12:20,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:12:20,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:12:20,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:12:20,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:12:20,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:12:20,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:12:20,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:12:20,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:12:20,900 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 09:12:20,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:12:20,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:12:20,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:12:20,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:12:20,929 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:12:20,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:12:20,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:12:20,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:12:20,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:12:20,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:12:20,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:12:20,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:12:20,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:12:20,931 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:12:20,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:12:20,932 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:12:20,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:12:20,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:12:20,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:12:20,932 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:12:20,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:12:20,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:12:20,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:12:20,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:12:20,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:12:20,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:12:20,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:12:20,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:12:20,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:12:20,935 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:12:21,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:12:21,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:12:21,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:12:21,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:12:21,413 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:12:21,415 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 09:12:21,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30cc34d4d/26e1f0ef704441179090a57ed305ebf0/FLAGb3f0135ff [2020-09-25 09:12:22,081 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:12:22,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 09:12:22,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30cc34d4d/26e1f0ef704441179090a57ed305ebf0/FLAGb3f0135ff [2020-09-25 09:12:22,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30cc34d4d/26e1f0ef704441179090a57ed305ebf0 [2020-09-25 09:12:22,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:12:22,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:12:22,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:22,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:12:22,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:12:22,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:22" (1/1) ... [2020-09-25 09:12:22,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42e65116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:22, skipping insertion in model container [2020-09-25 09:12:22,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:12:22" (1/1) ... [2020-09-25 09:12:22,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:12:22,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:12:22,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:23,978 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:12:24,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:12:24,081 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:12:24,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24 WrapperNode [2020-09-25 09:12:24,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:12:24,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:12:24,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:12:24,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:12:24,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (1/1) ... [2020-09-25 09:12:24,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:12:24,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:12:24,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:12:24,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:12:24,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (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 09:12:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:12:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:12:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 09:12:24,286 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-09-25 09:12:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-09-25 09:12:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-09-25 09:12:24,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:12:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:12:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-09-25 09:12:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-09-25 09:12:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-09-25 09:12:24,289 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-09-25 09:12:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 09:12:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:12:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:12:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:12:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:12:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:12:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:12:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:12:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:12:24,929 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:12:24,929 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 09:12:24,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:24 BoogieIcfgContainer [2020-09-25 09:12:24,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:12:24,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:12:24,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:12:24,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:12:24,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:12:22" (1/3) ... [2020-09-25 09:12:24,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2eb3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:24, skipping insertion in model container [2020-09-25 09:12:24,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:12:24" (2/3) ... [2020-09-25 09:12:24,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2eb3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:12:24, skipping insertion in model container [2020-09-25 09:12:24,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:12:24" (3/3) ... [2020-09-25 09:12:24,947 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-09-25 09:12:24,959 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:12:24,971 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:12:24,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:12:25,026 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:12:25,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:12:25,027 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:12:25,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:12:25,027 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:12:25,027 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:12:25,027 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:12:25,028 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:12:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-25 09:12:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 09:12:25,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:25,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:12:25,063 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:25,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:25,071 INFO L82 PathProgramCache]: Analyzing trace with hash 22025063, now seen corresponding path program 1 times [2020-09-25 09:12:25,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:25,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293827862] [2020-09-25 09:12:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:25,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:25,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:26,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 09:12:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:12:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 960 [2020-09-25 09:12:26,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:26,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:26,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:12:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 09:12:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:12:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:12:26,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:26,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:26,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:12:26,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:26,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 09:12:26,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:26,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:26,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 09:12:26,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:26,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 09:12:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:26,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:26,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:26,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:12:26,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:26,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:12:26,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:26,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:26,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:26,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:26,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:12:26,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:26,782 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 09:12:26,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293827862] [2020-09-25 09:12:26,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:26,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:12:26,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379747713] [2020-09-25 09:12:26,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:12:26,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:26,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:12:26,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:12:26,816 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 8 states. [2020-09-25 09:12:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:12:27,846 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2020-09-25 09:12:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:12:27,848 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-25 09:12:27,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:12:27,863 INFO L225 Difference]: With dead ends: 128 [2020-09-25 09:12:27,863 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 09:12:27,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-25 09:12:27,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 09:12:27,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2020-09-25 09:12:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 09:12:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-25 09:12:27,933 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 50 [2020-09-25 09:12:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:12:27,934 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-25 09:12:27,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:12:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-25 09:12:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 09:12:27,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:12:27,937 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:12:27,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:12:27,938 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:12:27,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:12:27,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2110981068, now seen corresponding path program 1 times [2020-09-25 09:12:27,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:12:27,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267730435] [2020-09-25 09:12:27,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:12:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:28,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:28,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:29,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:30,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:30,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 09:12:30,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 09:12:30,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2453 [2020-09-25 09:12:30,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:30,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:12:30,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 09:12:30,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 09:12:30,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 09:12:30,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:12:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:30,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:30,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:30,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:12:30,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 09:12:30,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:30,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:30,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:12:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 09:12:30,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:30,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 09:12:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:30,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:30,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:30,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:12:30,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:30,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 09:12:30,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:30,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:30,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:12:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:12:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:12:30,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:12:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 09:12:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:12:30,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:12:30,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:12:30,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:12:30,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:12:30,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:12:30,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:12:30,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:12:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:12:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:12:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:12:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:12:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:12:31,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267730435] [2020-09-25 09:12:31,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:12:31,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 09:12:31,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050781132] [2020-09-25 09:12:31,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 09:12:31,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:12:31,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 09:12:31,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:12:31,029 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 10 states. [2020-09-25 09:12:31,337 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-09-25 09:12:31,678 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-09-25 09:12:31,919 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-09-25 09:12:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:12:31,927 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2020-09-25 09:12:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:12:31,927 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-09-25 09:12:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:12:31,928 INFO L225 Difference]: With dead ends: 72 [2020-09-25 09:12:31,929 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 09:12:31,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:12:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 09:12:31,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 09:12:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 09:12:31,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 09:12:31,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2020-09-25 09:12:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:12:31,934 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 09:12:31,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 09:12:31,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 09:12:31,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 09:12:31,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:12:31,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 09:12:32,904 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,905 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,905 INFO L268 CegarLoopResult]: For program point L188-1(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L188-2(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L188-3(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-25 09:12:32,906 INFO L268 CegarLoopResult]: For program point L188-4(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,907 INFO L268 CegarLoopResult]: For program point L188-5(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,907 INFO L268 CegarLoopResult]: For program point L188-6(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,907 INFO L268 CegarLoopResult]: For program point L188-7(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,907 INFO L268 CegarLoopResult]: For program point L188-8(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-9(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-10(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-11(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-12(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-13(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-14(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,908 INFO L268 CegarLoopResult]: For program point L188-15(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,909 INFO L268 CegarLoopResult]: For program point L188-16(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,909 INFO L268 CegarLoopResult]: For program point L188-17(line 188) no Hoare annotation was computed. [2020-09-25 09:12:32,909 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,909 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,909 INFO L268 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,910 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,911 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= |old(#length)| |#length|) (= ~batch_at~0 |old(~batch_at~0)|) (= |#memory_int| |old(#memory_int)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |old(#valid)| |#valid|) (= ~__tmpTR__int_1~0 |old(~__tmpTR__int_1~0)|) (= |~#unspec_addr~0.offset| |old(~#unspec_addr~0.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#host~0.offset| |old(~#host~0.offset)|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-09-25 09:12:32,911 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,912 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~fstTTL~0) (<= ~fstTTL~0 1) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-09-25 09:12:32,912 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 09:12:32,912 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 09:12:32,913 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 231 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,913 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-09-25 09:12:32,913 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-25 09:12:32,914 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-09-25 09:12:32,919 INFO L264 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-09-25 09:12:32,919 INFO L268 CegarLoopResult]: For program point L232-1(line 232) no Hoare annotation was computed. [2020-09-25 09:12:32,919 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-09-25 09:12:32,920 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-25 09:12:32,920 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 09:12:32,920 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-09-25 09:12:32,920 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-09-25 09:12:32,920 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-09-25 09:12:32,920 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point L221-1(line 221) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point L228-1(line 228) no Hoare annotation was computed. [2020-09-25 09:12:32,921 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-25 09:12:32,922 INFO L268 CegarLoopResult]: For program point L224-1(line 224) no Hoare annotation was computed. [2020-09-25 09:12:32,923 INFO L264 CegarLoopResult]: At program point net_reopenENTRY(lines 214 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,923 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-09-25 09:12:32,923 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-09-25 09:12:32,923 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 09:12:32,923 INFO L268 CegarLoopResult]: For program point L216-1(line 216) no Hoare annotation was computed. [2020-09-25 09:12:32,924 INFO L264 CegarLoopResult]: At program point L216-2(lines 216 226) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,924 INFO L268 CegarLoopResult]: For program point L216-3(lines 216 226) no Hoare annotation was computed. [2020-09-25 09:12:32,924 INFO L264 CegarLoopResult]: At program point L227(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,924 INFO L264 CegarLoopResult]: At program point L227-1(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,924 INFO L264 CegarLoopResult]: At program point net_send_batchENTRY(lines 203 213) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) [2020-09-25 09:12:32,925 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-09-25 09:12:32,925 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-09-25 09:12:32,925 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,925 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,925 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 09:12:32,925 INFO L268 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,926 INFO L268 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,926 INFO L268 CegarLoopResult]: For program point L208-4(lines 208 209) no Hoare annotation was computed. [2020-09-25 09:12:32,926 INFO L268 CegarLoopResult]: For program point L208-5(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,926 INFO L268 CegarLoopResult]: For program point L206-3(lines 206 211) no Hoare annotation was computed. [2020-09-25 09:12:32,927 INFO L268 CegarLoopResult]: For program point L206-4(line 206) no Hoare annotation was computed. [2020-09-25 09:12:32,927 INFO L268 CegarLoopResult]: For program point L208-7(line 208) no Hoare annotation was computed. [2020-09-25 09:12:32,927 INFO L268 CegarLoopResult]: For program point L206-5(line 206) no Hoare annotation was computed. [2020-09-25 09:12:32,927 INFO L264 CegarLoopResult]: At program point L206-6(lines 206 211) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (and (< net_send_batch_~i~0 256) (<= 0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= 1 ~fstTTL~0))) [2020-09-25 09:12:32,927 INFO L268 CegarLoopResult]: For program point L206-7(lines 206 211) no Hoare annotation was computed. [2020-09-25 09:12:32,928 INFO L264 CegarLoopResult]: At program point net_resetENTRY(lines 198 202) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-09-25 09:12:32,928 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-09-25 09:12:32,928 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-09-25 09:12:32,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:12:32 BoogieIcfgContainer [2020-09-25 09:12:32,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:12:32,980 INFO L168 Benchmark]: Toolchain (without parser) took 10557.52 ms. Allocated memory was 140.0 MB in the beginning and 471.3 MB in the end (delta: 331.4 MB). Free memory was 102.6 MB in the beginning and 353.9 MB in the end (delta: -251.3 MB). Peak memory consumption was 188.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:12:32,984 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:12:32,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1654.71 ms. Allocated memory was 140.0 MB in the beginning and 256.4 MB in the end (delta: 116.4 MB). Free memory was 102.0 MB in the beginning and 145.7 MB in the end (delta: -43.7 MB). Peak memory consumption was 177.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:12:32,987 INFO L168 Benchmark]: Boogie Preprocessor took 97.04 ms. Allocated memory is still 256.4 MB. Free memory was 145.7 MB in the beginning and 144.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:12:32,987 INFO L168 Benchmark]: RCFGBuilder took 753.01 ms. Allocated memory is still 256.4 MB. Free memory was 144.0 MB in the beginning and 120.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:12:32,991 INFO L168 Benchmark]: TraceAbstraction took 8041.10 ms. Allocated memory was 256.4 MB in the beginning and 471.3 MB in the end (delta: 215.0 MB). Free memory was 120.2 MB in the beginning and 353.9 MB in the end (delta: -233.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2020-09-25 09:12:33,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1654.71 ms. Allocated memory was 140.0 MB in the beginning and 256.4 MB in the end (delta: 116.4 MB). Free memory was 102.0 MB in the beginning and 145.7 MB in the end (delta: -43.7 MB). Peak memory consumption was 177.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.04 ms. Allocated memory is still 256.4 MB. Free memory was 145.7 MB in the beginning and 144.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 753.01 ms. Allocated memory is still 256.4 MB. Free memory was 144.0 MB in the beginning and 120.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8041.10 ms. Allocated memory was 256.4 MB in the beginning and 471.3 MB in the end (delta: 215.0 MB). Free memory was 120.2 MB in the beginning and 353.9 MB in the end (delta: -233.8 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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: 216]: Loop Invariant Derived loop invariant: ((!(\old(batch_at) + 1 <= fstTTL) || (\old(__tmpTR__int_1) == __tmpTR__int_1 && \old(batch_at) == batch_at)) || !(fstTTL <= 1)) || !(1 <= fstTTL) - InvariantResult [Line: 206]: Loop Invariant Derived loop invariant: ((!(batch_at + 1 <= fstTTL) || !(fstTTL <= 1)) || ((i < 256 && 0 <= i) && \old(__tmpTR__int_1) == __tmpTR__int_1)) || !(1 <= fstTTL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 225 SDslu, 376 SDs, 0 SdLazy, 298 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 16 PreInvPairs, 18 NumberOfFragments, 265 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 631 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 20496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 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...