/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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 11:26:00,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:26:00,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:26:00,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:26:00,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:26:00,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:26:00,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:26:00,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:26:00,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:26:00,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:26:00,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:26:00,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:26:00,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:26:00,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:26:00,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:26:00,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:26:00,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:26:00,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:26:00,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:26:00,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:26:00,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:26:00,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:26:00,791 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:26:00,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:26:00,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:26:00,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:26:00,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:26:00,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:26:00,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:26:00,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:26:00,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:26:00,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:26:00,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:26:00,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:26:00,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:26:00,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:26:00,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:26:00,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:26:00,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:26:00,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:26:00,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:26:00,812 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 11:26:00,860 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:26:00,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:26:00,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:26:00,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:26:00,863 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:26:00,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:26:00,864 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:26:00,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:26:00,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:26:00,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:26:00,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:26:00,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:26:00,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:26:00,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:26:00,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:26:00,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:26:00,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:26:00,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:26:00,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:26:00,868 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:26:00,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:26:00,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:26:00,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:26:00,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:26:00,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:26:00,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:26:00,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:26:00,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:26:00,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:26:00,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 11:26:01,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:26:01,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:26:01,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:26:01,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:26:01,330 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:26:01,331 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 11:26:01,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3afd1a1fc/99fff41fdd5c49ccb60f9b67848e0322/FLAG822112fa1 [2020-09-25 11:26:01,977 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:26:01,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-09-25 11:26:01,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3afd1a1fc/99fff41fdd5c49ccb60f9b67848e0322/FLAG822112fa1 [2020-09-25 11:26:02,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3afd1a1fc/99fff41fdd5c49ccb60f9b67848e0322 [2020-09-25 11:26:02,332 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:26:02,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:26:02,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:26:02,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:26:02,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:26:02,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:26:02" (1/1) ... [2020-09-25 11:26:02,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bb1121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:02, skipping insertion in model container [2020-09-25 11:26:02,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:26:02" (1/1) ... [2020-09-25 11:26:02,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:26:02,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:26:02,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:26:03,787 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:26:03,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:26:03,881 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:26:03,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03 WrapperNode [2020-09-25 11:26:03,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:26:03,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:26:03,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:26:03,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:26:03,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (1/1) ... [2020-09-25 11:26:03,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:26:03,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:26:03,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:26:03,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:26:03,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (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 11:26:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:26:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:26:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 11:26:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-09-25 11:26:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-09-25 11:26:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-09-25 11:26:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:26:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:26:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-09-25 11:26:04,079 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-09-25 11:26:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-09-25 11:26:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-09-25 11:26:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 11:26:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:26:04,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:26:04,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:26:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:26:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:26:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:26:04,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:26:04,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:26:04,541 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:26:04,541 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 11:26:04,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:04 BoogieIcfgContainer [2020-09-25 11:26:04,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:26:04,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:26:04,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:26:04,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:26:04,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:26:02" (1/3) ... [2020-09-25 11:26:04,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ee6d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:04, skipping insertion in model container [2020-09-25 11:26:04,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:26:03" (2/3) ... [2020-09-25 11:26:04,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ee6d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:26:04, skipping insertion in model container [2020-09-25 11:26:04,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:26:04" (3/3) ... [2020-09-25 11:26:04,556 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-09-25 11:26:04,569 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:26:04,580 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:26:04,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:26:04,633 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:26:04,634 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:26:04,634 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:26:04,634 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:26:04,634 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:26:04,634 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:26:04,634 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:26:04,635 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:26:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-09-25 11:26:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 11:26:04,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:04,669 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 11:26:04,669 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:04,677 INFO L82 PathProgramCache]: Analyzing trace with hash 22025063, now seen corresponding path program 1 times [2020-09-25 11:26:04,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:04,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226558818] [2020-09-25 11:26:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:05,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:05,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:05,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 11:26:05,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:26:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-09-25 11:26:05,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:05,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:26:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 11:26:05,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 11:26:05,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 11:26:06,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:06,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:06,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:26:06,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:06,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 11:26:06,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:06,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:26:06,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 11:26:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:06,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:06,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:06,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:06,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:06,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 11:26:06,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:06,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:06,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:06,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:06,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:26:06,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:06,359 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 11:26:06,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226558818] [2020-09-25 11:26:06,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:26:06,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 11:26:06,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286683654] [2020-09-25 11:26:06,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 11:26:06,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:06,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 11:26:06,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 11:26:06,394 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 8 states. [2020-09-25 11:26:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:07,303 INFO L93 Difference]: Finished difference Result 128 states and 143 transitions. [2020-09-25 11:26:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 11:26:07,306 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2020-09-25 11:26:07,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:07,321 INFO L225 Difference]: With dead ends: 128 [2020-09-25 11:26:07,321 INFO L226 Difference]: Without dead ends: 80 [2020-09-25 11:26:07,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2020-09-25 11:26:07,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-25 11:26:07,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 72. [2020-09-25 11:26:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-25 11:26:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-09-25 11:26:07,416 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 50 [2020-09-25 11:26:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:07,418 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-09-25 11:26:07,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 11:26:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-09-25 11:26:07,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 11:26:07,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:07,422 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 11:26:07,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:26:07,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:07,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:07,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2110981068, now seen corresponding path program 1 times [2020-09-25 11:26:07,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:07,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865306854] [2020-09-25 11:26:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:07,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:07,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:07,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:08,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:08,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:09,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:09,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 11:26:09,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 11:26:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-09-25 11:26:09,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:09,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 11:26:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 11:26:09,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 11:26:09,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 11:26:09,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:09,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:09,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:09,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:26:09,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:09,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 11:26:09,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:09,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:09,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:09,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:26:09,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 11:26:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:09,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:09,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:09,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 11:26:09,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:09,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:09,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:26:09,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:09,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 11:26:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:09,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:09,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:09,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:09,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 11:26:09,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:09,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:09,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:09,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 11:26:09,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865306854] [2020-09-25 11:26:09,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:26:09,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 11:26:09,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146558581] [2020-09-25 11:26:09,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 11:26:09,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:09,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 11:26:09,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 11:26:09,887 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 10 states. [2020-09-25 11:26:10,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:10,822 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2020-09-25 11:26:10,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 11:26:10,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2020-09-25 11:26:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:10,825 INFO L225 Difference]: With dead ends: 97 [2020-09-25 11:26:10,825 INFO L226 Difference]: Without dead ends: 95 [2020-09-25 11:26:10,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2020-09-25 11:26:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-25 11:26:10,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2020-09-25 11:26:10,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 11:26:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2020-09-25 11:26:10,840 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 64 [2020-09-25 11:26:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:10,841 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2020-09-25 11:26:10,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 11:26:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2020-09-25 11:26:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-25 11:26:10,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:26:10,844 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:26:10,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:26:10,845 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:26:10,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:26:10,845 INFO L82 PathProgramCache]: Analyzing trace with hash 369287025, now seen corresponding path program 2 times [2020-09-25 11:26:10,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:26:10,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388022321] [2020-09-25 11:26:10,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:26:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:10,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:11,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:12,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:14,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:15,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 11:26:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 11:26:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 11:26:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:15,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:26:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 11:26:15,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 11:26:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:16,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:26:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:16,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:16,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 11:26:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:16,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 11:26:16,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:16,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:16,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 11:26:16,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:26:16,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-25 11:26:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:16,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:16,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:16,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 11:26:16,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:16,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 11:26:16,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:16,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 11:26:16,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 11:26:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 11:26:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:16,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:16,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:16,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:16,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:16,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 11:26:16,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:16,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:26:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:26:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:16,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-09-25 11:26:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:26:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:26:16,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:26:16,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:26:16,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:26:16,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 11:26:16,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:26:16,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 11:26:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:26:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:26:16,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:26:16,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:26:16,367 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 11:26:16,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388022321] [2020-09-25 11:26:16,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 11:26:16,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 11:26:16,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499319299] [2020-09-25 11:26:16,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 11:26:16,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:26:16,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 11:26:16,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 11:26:16,372 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand 12 states. [2020-09-25 11:26:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:26:16,831 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2020-09-25 11:26:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 11:26:16,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-09-25 11:26:16,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:26:16,832 INFO L225 Difference]: With dead ends: 87 [2020-09-25 11:26:16,832 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 11:26:16,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2020-09-25 11:26:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 11:26:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 11:26:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 11:26:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 11:26:16,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2020-09-25 11:26:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:26:16,837 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 11:26:16,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 11:26:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 11:26:16,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 11:26:16,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:26:16,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 11:26:17,670 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,670 INFO L268 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,670 INFO L268 CegarLoopResult]: For program point L188-1(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,670 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 11:26:17,670 INFO L268 CegarLoopResult]: For program point L188-2(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L188-3(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L188-4(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L188-5(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L188-6(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,671 INFO L268 CegarLoopResult]: For program point L188-7(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-8(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-9(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-10(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-11(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-12(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-13(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,672 INFO L268 CegarLoopResult]: For program point L188-14(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,674 INFO L268 CegarLoopResult]: For program point L188-15(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,674 INFO L268 CegarLoopResult]: For program point L188-16(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,674 INFO L268 CegarLoopResult]: For program point L188-17(line 188) no Hoare annotation was computed. [2020-09-25 11:26:17,675 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,675 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,675 INFO L268 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,675 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,675 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 11:26:17,676 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,676 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,676 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 11:26:17,676 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 11:26:17,676 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 11:26:17,676 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 11:26:17,676 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-09-25 11:26:17,677 INFO L268 CegarLoopResult]: For program point L233(line 233) no Hoare annotation was computed. [2020-09-25 11:26:17,677 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-09-25 11:26:17,677 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 11:26:17,677 INFO L268 CegarLoopResult]: For program point L232-1(line 232) no Hoare annotation was computed. [2020-09-25 11:26:17,677 INFO L268 CegarLoopResult]: For program point L232-2(line 232) no Hoare annotation was computed. [2020-09-25 11:26:17,677 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-09-25 11:26:17,678 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-09-25 11:26:17,679 INFO L268 CegarLoopResult]: For program point L221-1(line 221) no Hoare annotation was computed. [2020-09-25 11:26:17,679 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-09-25 11:26:17,679 INFO L268 CegarLoopResult]: For program point L228-1(line 228) no Hoare annotation was computed. [2020-09-25 11:26:17,679 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-09-25 11:26:17,679 INFO L268 CegarLoopResult]: For program point L224-1(line 224) no Hoare annotation was computed. [2020-09-25 11:26:17,679 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 11:26:17,679 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-09-25 11:26:17,680 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-09-25 11:26:17,680 INFO L268 CegarLoopResult]: For program point L216(line 216) no Hoare annotation was computed. [2020-09-25 11:26:17,680 INFO L268 CegarLoopResult]: For program point L216-1(line 216) no Hoare annotation was computed. [2020-09-25 11:26:17,683 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 11:26:17,683 INFO L268 CegarLoopResult]: For program point L216-3(lines 216 226) no Hoare annotation was computed. [2020-09-25 11:26:17,684 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 11:26:17,684 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 11:26:17,684 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 11:26:17,684 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-09-25 11:26:17,684 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-09-25 11:26:17,685 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (not (<= 1 ~fstTTL~0)) (not (<= ~fstTTL~0 1))) [2020-09-25 11:26:17,685 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,688 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 11:26:17,688 INFO L268 CegarLoopResult]: For program point L208-2(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,688 INFO L268 CegarLoopResult]: For program point L208-3(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,688 INFO L268 CegarLoopResult]: For program point L208-4(lines 208 209) no Hoare annotation was computed. [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L208-5(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L206-3(lines 206 211) no Hoare annotation was computed. [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L206-4(line 206) no Hoare annotation was computed. [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L208-7(line 208) no Hoare annotation was computed. [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L206-5(line 206) no Hoare annotation was computed. [2020-09-25 11:26:17,689 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 0) (<= 0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= 1 ~fstTTL~0))) [2020-09-25 11:26:17,689 INFO L268 CegarLoopResult]: For program point L206-7(lines 206 211) no Hoare annotation was computed. [2020-09-25 11:26:17,690 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 11:26:17,690 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-09-25 11:26:17,690 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-09-25 11:26:17,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:26:17 BoogieIcfgContainer [2020-09-25 11:26:17,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 11:26:17,725 INFO L168 Benchmark]: Toolchain (without parser) took 15389.69 ms. Allocated memory was 140.5 MB in the beginning and 581.4 MB in the end (delta: 440.9 MB). Free memory was 102.1 MB in the beginning and 391.8 MB in the end (delta: -289.7 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,727 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1544.36 ms. Allocated memory was 140.5 MB in the beginning and 260.6 MB in the end (delta: 120.1 MB). Free memory was 101.5 MB in the beginning and 149.9 MB in the end (delta: -48.4 MB). Peak memory consumption was 174.9 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,730 INFO L168 Benchmark]: Boogie Preprocessor took 90.89 ms. Allocated memory is still 260.6 MB. Free memory was 149.9 MB in the beginning and 148.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,736 INFO L168 Benchmark]: RCFGBuilder took 570.94 ms. Allocated memory is still 260.6 MB. Free memory was 148.1 MB in the beginning and 122.2 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,737 INFO L168 Benchmark]: TraceAbstraction took 13173.59 ms. Allocated memory was 260.6 MB in the beginning and 581.4 MB in the end (delta: 320.9 MB). Free memory was 122.2 MB in the beginning and 391.8 MB in the end (delta: -269.6 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2020-09-25 11:26:17,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1544.36 ms. Allocated memory was 140.5 MB in the beginning and 260.6 MB in the end (delta: 120.1 MB). Free memory was 101.5 MB in the beginning and 149.9 MB in the end (delta: -48.4 MB). Peak memory consumption was 174.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.89 ms. Allocated memory is still 260.6 MB. Free memory was 149.9 MB in the beginning and 148.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 570.94 ms. Allocated memory is still 260.6 MB. Free memory was 148.1 MB in the beginning and 122.2 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13173.59 ms. Allocated memory was 260.6 MB in the beginning and 581.4 MB in the end (delta: 320.9 MB). Free memory was 122.2 MB in the beginning and 391.8 MB in the end (delta: -269.6 MB). Peak memory consumption was 51.3 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 <= 0 && 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: 12.2s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 186 SDtfs, 331 SDslu, 626 SDs, 0 SdLazy, 596 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=2, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 17 PreInvPairs, 18 NumberOfFragments, 265 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 467 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 189 ConstructedInterpolants, 0 QuantifiedInterpolants, 44345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 14/26 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...