/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 -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 0.1.25-5644d1e-m [2020-08-19 04:32:01,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 04:32:01,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 04:32:01,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 04:32:01,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 04:32:01,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 04:32:01,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 04:32:01,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 04:32:01,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 04:32:01,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 04:32:01,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 04:32:01,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 04:32:01,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 04:32:01,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 04:32:01,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 04:32:01,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 04:32:01,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 04:32:01,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 04:32:01,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 04:32:01,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 04:32:01,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 04:32:01,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 04:32:01,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 04:32:01,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 04:32:01,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 04:32:01,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 04:32:01,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 04:32:01,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 04:32:01,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 04:32:01,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-19 04:32:01,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 04:32:01,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 04:32:01,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 04:32:01,320 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 [2020-08-19 04:32:01,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 04:32:01,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 04:32:01,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 04:32:01,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 04:32:01,343 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 04:32:01,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 04:32:01,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 04:32:01,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 04:32:01,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 04:32:01,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 04:32:01,345 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 04:32:01,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 04:32:01,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 04:32:01,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 04:32:01,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 04:32:01,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 04:32:01,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 04:32:01,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 04:32:01,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 04:32:01,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 04:32:01,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 04:32:01,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 04:32:01,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 04:32:01,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 04:32:01,347 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2; [2020-08-19 04:32:01,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 04:32:01,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 04:32:01,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 04:32:01,685 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 04:32:01,687 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 04:32:01,687 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-08-19 04:32:01,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0b171d13/cc96a964bbb649b1bb3f7fadcfc7a4b9/FLAGb394e71fe [2020-08-19 04:32:02,224 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 04:32:02,225 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-08-19 04:32:02,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0b171d13/cc96a964bbb649b1bb3f7fadcfc7a4b9/FLAGb394e71fe [2020-08-19 04:32:02,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0b171d13/cc96a964bbb649b1bb3f7fadcfc7a4b9 [2020-08-19 04:32:02,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 04:32:02,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 04:32:02,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 04:32:02,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 04:32:02,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 04:32:02,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:32:02" (1/1) ... [2020-08-19 04:32:02,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e1188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:02, skipping insertion in model container [2020-08-19 04:32:02,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 04:32:02" (1/1) ... [2020-08-19 04:32:02,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 04:32:02,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 04:32:02,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:32:03,945 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 04:32:03,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 04:32:04,001 INFO L208 MainTranslator]: Completed translation [2020-08-19 04:32:04,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04 WrapperNode [2020-08-19 04:32:04,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 04:32:04,002 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 04:32:04,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 04:32:04,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 04:32:04,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (1/1) ... [2020-08-19 04:32:04,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 04:32:04,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 04:32:04,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 04:32:04,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 04:32:04,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (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 [2020-08-19 04:32:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 04:32:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 04:32:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-19 04:32:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-08-19 04:32:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-08-19 04:32:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-08-19 04:32:04,184 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 04:32:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 04:32:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-08-19 04:32:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-08-19 04:32:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-08-19 04:32:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-08-19 04:32:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-19 04:32:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 04:32:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 04:32:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 04:32:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 04:32:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 04:32:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-19 04:32:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 04:32:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 04:32:04,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 04:32:04,648 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-19 04:32:04,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:32:04 BoogieIcfgContainer [2020-08-19 04:32:04,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 04:32:04,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 04:32:04,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 04:32:04,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 04:32:04,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 04:32:02" (1/3) ... [2020-08-19 04:32:04,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2289f8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:32:04, skipping insertion in model container [2020-08-19 04:32:04,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 04:32:04" (2/3) ... [2020-08-19 04:32:04,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2289f8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 04:32:04, skipping insertion in model container [2020-08-19 04:32:04,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 04:32:04" (3/3) ... [2020-08-19 04:32:04,659 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-08-19 04:32:04,669 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 04:32:04,677 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 04:32:04,690 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 04:32:04,710 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 04:32:04,710 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 04:32:04,711 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 04:32:04,711 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 04:32:04,711 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 04:32:04,711 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 04:32:04,711 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 04:32:04,711 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 04:32:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-08-19 04:32:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-19 04:32:04,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 04:32:04,732 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] [2020-08-19 04:32:04,732 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 04:32:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 04:32:04,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1559425920, now seen corresponding path program 1 times [2020-08-19 04:32:04,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 04:32:04,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356145611] [2020-08-19 04:32:04,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 04:32:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:32:05,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 04:32:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:32:05,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 04:32:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 04:32:05,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 04:32:05,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356145611] [2020-08-19 04:32:05,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 04:32:05,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-19 04:32:05,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526677792] [2020-08-19 04:32:05,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-19 04:32:05,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 04:32:05,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-19 04:32:05,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-19 04:32:05,198 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 6 states. [2020-08-19 04:32:05,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 04:32:05,464 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-08-19 04:32:05,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 04:32:05,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-08-19 04:32:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 04:32:05,473 INFO L225 Difference]: With dead ends: 52 [2020-08-19 04:32:05,474 INFO L226 Difference]: Without dead ends: 0 [2020-08-19 04:32:05,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-08-19 04:32:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-19 04:32:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-19 04:32:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-19 04:32:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-19 04:32:05,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-08-19 04:32:05,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 04:32:05,503 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-19 04:32:05,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-19 04:32:05,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-19 04:32:05,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-19 04:32:05,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 04:32:05,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-19 04:32:05,696 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-08-19 04:32:05,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:32:05,988 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)|)) [2020-08-19 04:32:05,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:32:05,988 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-19 04:32:05,989 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2020-08-19 04:32:05,989 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-19 04:32:05,989 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-19 04:32:05,989 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 231 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-08-19 04:32:05,989 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-08-19 04:32:05,989 INFO L264 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-08-19 04:32:05,990 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-08-19 04:32:05,990 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-08-19 04:32:05,991 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-08-19 04:32:05,991 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-08-19 04:32:05,991 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-08-19 04:32:05,991 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-08-19 04:32:05,991 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))) [2020-08-19 04:32:05,992 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-08-19 04:32:05,992 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-08-19 04:32:05,992 INFO L264 CegarLoopResult]: At program point L216(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))) [2020-08-19 04:32:05,992 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-08-19 04:32:05,992 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))) [2020-08-19 04:32:05,992 INFO L264 CegarLoopResult]: At program point L227-1(line 227) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-08-19 04:32:05,993 INFO L264 CegarLoopResult]: At program point net_send_batchENTRY(lines 203 213) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) [2020-08-19 04:32:05,993 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-08-19 04:32:05,993 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-08-19 04:32:05,993 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-08-19 04:32:05,993 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-08-19 04:32:05,993 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 209) no Hoare annotation was computed. [2020-08-19 04:32:05,994 INFO L268 CegarLoopResult]: For program point L206-2(lines 206 211) no Hoare annotation was computed. [2020-08-19 04:32:05,994 INFO L264 CegarLoopResult]: At program point L206-3(lines 206 211) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2020-08-19 04:32:05,994 INFO L268 CegarLoopResult]: For program point L206-4(lines 206 211) no Hoare annotation was computed. [2020-08-19 04:32:05,994 INFO L264 CegarLoopResult]: At program point net_resetENTRY(lines 198 202) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-08-19 04:32:05,994 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-08-19 04:32:05,994 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-08-19 04:32:06,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 04:32:06 BoogieIcfgContainer [2020-08-19 04:32:06,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 04:32:06,016 INFO L168 Benchmark]: Toolchain (without parser) took 3415.09 ms. Allocated memory was 147.3 MB in the beginning and 271.6 MB in the end (delta: 124.3 MB). Free memory was 103.0 MB in the beginning and 111.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 182.1 MB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,017 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1400.32 ms. Allocated memory was 147.3 MB in the beginning and 254.3 MB in the end (delta: 107.0 MB). Free memory was 102.8 MB in the beginning and 141.9 MB in the end (delta: -39.1 MB). Peak memory consumption was 171.6 MB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,019 INFO L168 Benchmark]: Boogie Preprocessor took 73.95 ms. Allocated memory is still 254.3 MB. Free memory was 141.9 MB in the beginning and 140.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,019 INFO L168 Benchmark]: RCFGBuilder took 575.14 ms. Allocated memory is still 254.3 MB. Free memory was 140.1 MB in the beginning and 117.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,020 INFO L168 Benchmark]: TraceAbstraction took 1361.03 ms. Allocated memory was 254.3 MB in the beginning and 271.6 MB in the end (delta: 17.3 MB). Free memory was 117.8 MB in the beginning and 111.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. [2020-08-19 04:32:06,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1400.32 ms. Allocated memory was 147.3 MB in the beginning and 254.3 MB in the end (delta: 107.0 MB). Free memory was 102.8 MB in the beginning and 141.9 MB in the end (delta: -39.1 MB). Peak memory consumption was 171.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.95 ms. Allocated memory is still 254.3 MB. Free memory was 141.9 MB in the beginning and 140.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 575.14 ms. Allocated memory is still 254.3 MB. Free memory was 140.1 MB in the beginning and 117.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1361.03 ms. Allocated memory was 254.3 MB in the beginning and 271.6 MB in the end (delta: 17.3 MB). Free memory was 117.8 MB in the beginning and 111.8 MB in the end (delta: 5.9 MB). Peak memory consumption was 89.9 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: 206]: Loop Invariant Derived loop invariant: !(batch_at + 1 <= fstTTL) || (batch_at <= i && \old(__tmpTR__int_1) == __tmpTR__int_1) - 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 37 SDslu, 18 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 15 NumberOfFragments, 174 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 298 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...