/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:56:03,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:56:03,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:56:03,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:56:03,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:56:03,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:56:03,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:56:03,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:56:03,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:56:03,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:56:03,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:56:03,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:56:03,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:56:03,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:56:03,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:56:03,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:56:03,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:56:03,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:56:03,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:56:03,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:56:03,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:56:03,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:56:03,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:56:03,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:56:03,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:56:03,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:56:03,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:56:03,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:56:03,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:56:03,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:56:03,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:56:03,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:56:03,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:56:03,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:56:03,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:56:03,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:56:03,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:56:03,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:56:03,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:56:03,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:56:03,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:56:03,301 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 09:56:03,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:56:03,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:56:03,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:56:03,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:56:03,356 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:56:03,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:56:03,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:56:03,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:56:03,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:56:03,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:56:03,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:56:03,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:56:03,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:56:03,359 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:56:03,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:56:03,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:56:03,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:56:03,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:56:03,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:56:03,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:56:03,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:56:03,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:56:03,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:56:03,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:56:03,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:56:03,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:56:03,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:56:03,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:56:03,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:56:03,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:56:03,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:56:03,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:56:03,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:56:03,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:56:03,817 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:56:03,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-10-29 09:56:03,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af195988/e0c680a753be4485a565810561c48bcf/FLAGb9f608c9a [2020-10-29 09:56:04,673 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:56:04,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-10-29 09:56:04,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af195988/e0c680a753be4485a565810561c48bcf/FLAGb9f608c9a [2020-10-29 09:56:04,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af195988/e0c680a753be4485a565810561c48bcf [2020-10-29 09:56:05,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:56:05,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:56:05,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:56:05,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:56:05,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:56:05,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:56:05" (1/1) ... [2020-10-29 09:56:05,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b87bb20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:05, skipping insertion in model container [2020-10-29 09:56:05,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:56:05" (1/1) ... [2020-10-29 09:56:05,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:56:05,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:56:05,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:56:06,713 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:56:06,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:56:06,765 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:56:06,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06 WrapperNode [2020-10-29 09:56:06,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:56:06,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:56:06,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:56:06,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:56:06,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... [2020-10-29 09:56:06,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:56:06,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:56:06,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:56:06,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:56:06,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:56:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:56:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:56:06,893 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:56:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:56:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-10-29 09:56:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-10-29 09:56:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-10-29 09:56:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:56:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:56:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-10-29 09:56:06,895 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:56:06,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:56:06,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:56:07,368 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:56:07,368 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 09:56:07,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:56:07 BoogieIcfgContainer [2020-10-29 09:56:07,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:56:07,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:56:07,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:56:07,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:56:07,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:56:05" (1/3) ... [2020-10-29 09:56:07,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f1793c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:56:07, skipping insertion in model container [2020-10-29 09:56:07,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:56:06" (2/3) ... [2020-10-29 09:56:07,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f1793c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:56:07, skipping insertion in model container [2020-10-29 09:56:07,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:56:07" (3/3) ... [2020-10-29 09:56:07,380 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-10-29 09:56:07,396 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:56:07,403 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:56:07,417 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:56:07,447 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:56:07,447 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:56:07,448 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:56:07,448 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:56:07,448 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:56:07,448 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:56:07,448 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:56:07,448 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:56:07,469 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-29 09:56:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 09:56:07,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:56:07,477 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] [2020-10-29 09:56:07,477 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:56:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:56:07,484 INFO L82 PathProgramCache]: Analyzing trace with hash -923595688, now seen corresponding path program 1 times [2020-10-29 09:56:07,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:56:07,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466027296] [2020-10-29 09:56:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:56:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:07,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:07,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:08,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:08,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 09:56:08,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:56:08,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 867 [2020-10-29 09:56:08,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:08,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:08,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 09:56:08,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:56:08,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 09:56:08,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:56:08,914 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 09:56:08,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:56:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:08,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:09,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:09,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:56:09,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:56:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 09:56:09,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:09,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:56:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:56:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:56:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:56:09,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 09:56:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:09,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:09,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:09,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:56:09,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:56:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 09:56:09,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:09,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:56:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:56:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 09:56:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:56:09,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:56:09,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466027296] [2020-10-29 09:56:09,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:56:09,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 09:56:09,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888342504] [2020-10-29 09:56:09,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 09:56:09,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:56:09,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 09:56:09,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 09:56:09,293 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 8 states. [2020-10-29 09:56:09,548 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 09:56:09,916 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-29 09:56:10,077 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 09:56:10,214 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-29 09:56:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:56:10,443 INFO L93 Difference]: Finished difference Result 79 states and 95 transitions. [2020-10-29 09:56:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 09:56:10,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-29 09:56:10,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:56:10,455 INFO L225 Difference]: With dead ends: 79 [2020-10-29 09:56:10,455 INFO L226 Difference]: Without dead ends: 39 [2020-10-29 09:56:10,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-29 09:56:10,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-29 09:56:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2020-10-29 09:56:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-29 09:56:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2020-10-29 09:56:10,512 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2020-10-29 09:56:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:56:10,512 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2020-10-29 09:56:10,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 09:56:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2020-10-29 09:56:10,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 09:56:10,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:56:10,514 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] [2020-10-29 09:56:10,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:56:10,515 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:56:10,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:56:10,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1897752679, now seen corresponding path program 1 times [2020-10-29 09:56:10,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:56:10,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629647715] [2020-10-29 09:56:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:56:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:10,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:10,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:10,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:10,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:11,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:11,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:11,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 09:56:11,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 09:56:11,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1255 [2020-10-29 09:56:11,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:11,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:11,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 09:56:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:56:11,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 09:56:11,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:56:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:56:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:11,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:11,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:11,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:56:11,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:56:11,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 09:56:11,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:11,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 09:56:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:56:11,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 09:56:11,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:56:11,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-29 09:56:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:11,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:11,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:11,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:56:11,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:56:11,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 09:56:11,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:11,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:11,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 09:56:11,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:56:11,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 09:56:11,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:56:12,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 09:56:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:56:12,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:56:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:56:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 09:56:12,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:56:12,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 09:56:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:56:12,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:56:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 09:56:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 09:56:12,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 09:56:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:56:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:56:12,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629647715] [2020-10-29 09:56:12,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:56:12,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 09:56:12,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200067975] [2020-10-29 09:56:12,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 09:56:12,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:56:12,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 09:56:12,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-29 09:56:12,054 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 10 states. [2020-10-29 09:56:12,232 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-10-29 09:56:12,496 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-29 09:56:12,682 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-29 09:56:12,846 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 09:56:12,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:56:12,855 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2020-10-29 09:56:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 09:56:12,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-29 09:56:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:56:12,856 INFO L225 Difference]: With dead ends: 36 [2020-10-29 09:56:12,856 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 09:56:12,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-29 09:56:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 09:56:12,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 09:56:12,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 09:56:12,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 09:56:12,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-10-29 09:56:12,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:56:12,864 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 09:56:12,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 09:56:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 09:56:12,864 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 09:56:12,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:56:12,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 09:56:13,246 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 17 [2020-10-29 09:56:13,364 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 14 [2020-10-29 09:56:13,495 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 20 [2020-10-29 09:56:13,614 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 17 [2020-10-29 09:56:13,752 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 23 [2020-10-29 09:56:13,994 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-29 09:56:13,994 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-29 09:56:13,994 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-29 09:56:13,994 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-29 09:56:13,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:56:13,995 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~batch_at~0 |old(~batch_at~0)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmpTR__int_1~0 |old(~__tmpTR__int_1~0)|) (= |~#unspec_addr~0.offset| |old(~#unspec_addr~0.offset)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#host~0.offset| |old(~#host~0.offset)|)) [2020-10-29 09:56:13,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:56:13,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 09:56:13,995 INFO L270 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)) [2020-10-29 09:56:13,996 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 09:56:13,996 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 09:56:13,996 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 233 237) 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))) [2020-10-29 09:56:13,996 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 233 237) no Hoare annotation was computed. [2020-10-29 09:56:13,996 INFO L270 CegarLoopResult]: At program point L235(line 235) 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)) [2020-10-29 09:56:13,996 INFO L274 CegarLoopResult]: For program point L235-1(line 235) no Hoare annotation was computed. [2020-10-29 09:56:13,996 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 233 237) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point L194-2(lines 193 198) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 193 198) the Hoare annotation is: true [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 193 198) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L270 CegarLoopResult]: At program point L195(line 195) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= 1 ~fstTTL~0)) (not (<= ~fstTTL~0 1))) [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point L194(lines 194 196) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point L195-1(line 195) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point net_reopenEXIT(lines 216 231) no Hoare annotation was computed. [2020-10-29 09:56:13,997 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-10-29 09:56:13,998 INFO L270 CegarLoopResult]: At program point net_reopenENTRY(lines 216 231) 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))) [2020-10-29 09:56:13,998 INFO L274 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2020-10-29 09:56:13,998 INFO L274 CegarLoopResult]: For program point net_reopenFINAL(lines 216 231) no Hoare annotation was computed. [2020-10-29 09:56:14,002 INFO L270 CegarLoopResult]: At program point L218(lines 218 228) 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))) [2020-10-29 09:56:14,002 INFO L274 CegarLoopResult]: For program point L230(line 230) no Hoare annotation was computed. [2020-10-29 09:56:14,002 INFO L270 CegarLoopResult]: At program point L229(line 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))) [2020-10-29 09:56:14,002 INFO L270 CegarLoopResult]: At program point L229-1(line 229) 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))) [2020-10-29 09:56:14,002 INFO L274 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-10-29 09:56:14,003 INFO L270 CegarLoopResult]: At program point net_send_batchENTRY(lines 205 215) 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)) [2020-10-29 09:56:14,003 INFO L274 CegarLoopResult]: For program point net_send_batchEXIT(lines 205 215) no Hoare annotation was computed. [2020-10-29 09:56:14,005 INFO L274 CegarLoopResult]: For program point net_send_batchFINAL(lines 205 215) no Hoare annotation was computed. [2020-10-29 09:56:14,005 INFO L270 CegarLoopResult]: At program point L210(line 210) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= ~fstTTL~0 1)) (not (<= 1 ~fstTTL~0))) [2020-10-29 09:56:14,005 INFO L274 CegarLoopResult]: For program point L210-1(line 210) no Hoare annotation was computed. [2020-10-29 09:56:14,005 INFO L274 CegarLoopResult]: For program point L210-2(lines 210 211) no Hoare annotation was computed. [2020-10-29 09:56:14,006 INFO L274 CegarLoopResult]: For program point L208-2(lines 208 213) no Hoare annotation was computed. [2020-10-29 09:56:14,006 INFO L270 CegarLoopResult]: At program point L208-3(lines 208 213) 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))) [2020-10-29 09:56:14,011 INFO L274 CegarLoopResult]: For program point L208-4(lines 208 213) no Hoare annotation was computed. [2020-10-29 09:56:14,012 INFO L270 CegarLoopResult]: At program point net_resetENTRY(lines 200 204) 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)) [2020-10-29 09:56:14,012 INFO L274 CegarLoopResult]: For program point net_resetEXIT(lines 200 204) no Hoare annotation was computed. [2020-10-29 09:56:14,012 INFO L274 CegarLoopResult]: For program point net_resetFINAL(lines 200 204) no Hoare annotation was computed. [2020-10-29 09:56:14,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:56:14 BoogieIcfgContainer [2020-10-29 09:56:14,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:56:14,042 INFO L168 Benchmark]: Toolchain (without parser) took 9034.18 ms. Allocated memory was 151.0 MB in the beginning and 493.9 MB in the end (delta: 342.9 MB). Free memory was 126.2 MB in the beginning and 257.9 MB in the end (delta: -131.7 MB). Peak memory consumption was 311.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:56:14,042 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:56:14,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1750.01 ms. Allocated memory was 151.0 MB in the beginning and 254.8 MB in the end (delta: 103.8 MB). Free memory was 125.6 MB in the beginning and 140.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 147.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:56:14,045 INFO L168 Benchmark]: Boogie Preprocessor took 45.62 ms. Allocated memory is still 254.8 MB. Free memory was 140.0 MB in the beginning and 138.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:56:14,048 INFO L168 Benchmark]: RCFGBuilder took 556.78 ms. Allocated memory is still 254.8 MB. Free memory was 138.4 MB in the beginning and 156.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:56:14,055 INFO L168 Benchmark]: TraceAbstraction took 6667.37 ms. Allocated memory was 254.8 MB in the beginning and 493.9 MB in the end (delta: 239.1 MB). Free memory was 156.0 MB in the beginning and 257.9 MB in the end (delta: -102.0 MB). Peak memory consumption was 236.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:56:14,066 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1750.01 ms. Allocated memory was 151.0 MB in the beginning and 254.8 MB in the end (delta: 103.8 MB). Free memory was 125.6 MB in the beginning and 140.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 147.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.62 ms. Allocated memory is still 254.8 MB. Free memory was 140.0 MB in the beginning and 138.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 556.78 ms. Allocated memory is still 254.8 MB. Free memory was 138.4 MB in the beginning and 156.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6667.37 ms. Allocated memory was 254.8 MB in the beginning and 493.9 MB in the end (delta: 239.1 MB). Free memory was 156.0 MB in the beginning and 257.9 MB in the end (delta: -102.0 MB). Peak memory consumption was 236.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: ((!(batch_at + 1 <= fstTTL) || !(fstTTL <= 1)) || ((i < 256 && 0 <= i) && \old(__tmpTR__int_1) == __tmpTR__int_1)) || !(1 <= fstTTL) - InvariantResult [Line: 218]: 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 134 SDslu, 90 SDs, 0 SdLazy, 196 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 21 PreInvPairs, 23 NumberOfFragments, 303 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 847 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 7545 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...