/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -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 0.2.0-b8ad66e [2020-10-23 18:45:03,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:45:03,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:45:03,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:45:03,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:45:03,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:45:03,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:45:03,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:45:03,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:45:03,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:45:03,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:45:03,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:45:03,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:45:03,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:45:03,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:45:03,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:45:03,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:45:03,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:45:03,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:45:03,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:45:03,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:45:03,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:45:03,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:45:03,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:45:03,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:45:03,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:45:03,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:45:03,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:45:03,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:45:03,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:45:03,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:45:03,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:45:03,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:45:03,783 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:45:03,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:45:03,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:45:03,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:45:03,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:45:03,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:45:03,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:45:03,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:45:03,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:45:03,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:45:03,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:45:03,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:45:03,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:45:03,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:45:03,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:45:03,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:45:03,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:45:03,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:45:03,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:45:03,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:45:03,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:45:03,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:45:03,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:45:03,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:45:03,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:45:03,791 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:45:04,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:45:04,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:45:04,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:45:04,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:45:04,252 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:45:04,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-10-23 18:45:04,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7e95668/be9f512276db4a3d8e62b4b7bcf7db47/FLAG074a165d3 [2020-10-23 18:45:04,970 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:45:04,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-10-23 18:45:04,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7e95668/be9f512276db4a3d8e62b4b7bcf7db47/FLAG074a165d3 [2020-10-23 18:45:05,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a7e95668/be9f512276db4a3d8e62b4b7bcf7db47 [2020-10-23 18:45:05,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:45:05,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:45:05,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:45:05,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:45:05,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:45:05,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:45:05" (1/1) ... [2020-10-23 18:45:05,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1c010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:05, skipping insertion in model container [2020-10-23 18:45:05,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:45:05" (1/1) ... [2020-10-23 18:45:05,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:45:05,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:45:05,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:45:06,861 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:45:06,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:45:06,925 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:45:06,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06 WrapperNode [2020-10-23 18:45:06,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:45:06,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:45:06,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:45:06,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:45:06,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... [2020-10-23 18:45:06,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:45:06,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:45:06,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:45:06,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:45:06,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:45:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:45:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:45:07,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:45:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:45:07,062 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-10-23 18:45:07,063 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-10-23 18:45:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-10-23 18:45:07,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:45:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:45:07,064 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:45:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:45:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:45:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-10-23 18:45:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-10-23 18:45:07,067 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-10-23 18:45:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-10-23 18:45:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:45:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:45:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:45:07,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:45:07,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:45:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:45:07,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:45:07,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:45:07,535 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:45:07,535 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:45:07,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:45:07 BoogieIcfgContainer [2020-10-23 18:45:07,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:45:07,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:45:07,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:45:07,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:45:07,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:45:05" (1/3) ... [2020-10-23 18:45:07,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d80a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:45:07, skipping insertion in model container [2020-10-23 18:45:07,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:45:06" (2/3) ... [2020-10-23 18:45:07,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d80a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:45:07, skipping insertion in model container [2020-10-23 18:45:07,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:45:07" (3/3) ... [2020-10-23 18:45:07,547 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-10-23 18:45:07,560 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:45:07,565 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:45:07,579 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:45:07,607 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:45:07,608 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:45:07,608 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:45:07,608 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:45:07,608 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:45:07,608 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:45:07,608 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:45:07,609 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:45:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-23 18:45:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-23 18:45:07,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:45:07,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:45:07,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:45:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:45:07,642 INFO L82 PathProgramCache]: Analyzing trace with hash -923595688, now seen corresponding path program 1 times [2020-10-23 18:45:07,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:45:07,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317415756] [2020-10-23 18:45:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:45:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:45:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:08,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:45:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:45:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:45:08,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317415756] [2020-10-23 18:45:08,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:45:08,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:45:08,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053654267] [2020-10-23 18:45:08,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:45:08,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:45:08,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:45:08,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:45:08,254 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 6 states. [2020-10-23 18:45:08,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:45:08,613 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2020-10-23 18:45:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:45:08,615 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-23 18:45:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:45:08,623 INFO L225 Difference]: With dead ends: 56 [2020-10-23 18:45:08,623 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:45:08,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:45:08,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:45:08,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:45:08,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:45:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:45:08,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-23 18:45:08,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:45:08,659 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:45:08,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:45:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:45:08,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:45:08,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:45:08,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:45:09,258 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-23 18:45:09,258 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 18:45:09,258 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-23 18:45:09,259 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-23 18:45:09,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:45:09,259 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~batch_at~0 |old(~batch_at~0)|) (= |#memory_int| |old(#memory_int)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |#t~string8.offset| |old(#t~string8.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~__tmpTR__int_1~0 |old(~__tmpTR__int_1~0)|) (= |~#unspec_addr~0.offset| |old(~#unspec_addr~0.offset)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#t~string8.base| |old(#t~string8.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#host~0.offset| |old(~#host~0.offset)|)) [2020-10-23 18:45:09,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:45:09,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:45:09,260 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2020-10-23 18:45:09,260 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:45:09,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:45:09,260 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 233 237) 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))) [2020-10-23 18:45:09,261 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 233 237) no Hoare annotation was computed. [2020-10-23 18:45:09,261 INFO L270 CegarLoopResult]: At program point L235(line 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-10-23 18:45:09,261 INFO L274 CegarLoopResult]: For program point L235-1(line 235) no Hoare annotation was computed. [2020-10-23 18:45:09,261 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 233 237) no Hoare annotation was computed. [2020-10-23 18:45:09,261 INFO L274 CegarLoopResult]: For program point L194-2(lines 193 198) no Hoare annotation was computed. [2020-10-23 18:45:09,262 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 193 198) the Hoare annotation is: true [2020-10-23 18:45:09,262 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 193 198) no Hoare annotation was computed. [2020-10-23 18:45:09,262 INFO L277 CegarLoopResult]: At program point L195(line 195) the Hoare annotation is: true [2020-10-23 18:45:09,262 INFO L274 CegarLoopResult]: For program point L194(lines 194 196) no Hoare annotation was computed. [2020-10-23 18:45:09,262 INFO L274 CegarLoopResult]: For program point L195-1(line 195) no Hoare annotation was computed. [2020-10-23 18:45:09,262 INFO L274 CegarLoopResult]: For program point net_reopenEXIT(lines 216 231) no Hoare annotation was computed. [2020-10-23 18:45:09,263 INFO L274 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2020-10-23 18:45:09,263 INFO L270 CegarLoopResult]: At program point net_reopenENTRY(lines 216 231) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-10-23 18:45:09,263 INFO L274 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2020-10-23 18:45:09,263 INFO L274 CegarLoopResult]: For program point net_reopenFINAL(lines 216 231) no Hoare annotation was computed. [2020-10-23 18:45:09,263 INFO L270 CegarLoopResult]: At program point L218(lines 218 228) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-10-23 18:45:09,264 INFO L274 CegarLoopResult]: For program point L230(line 230) no Hoare annotation was computed. [2020-10-23 18:45:09,264 INFO L270 CegarLoopResult]: At program point L229(line 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~batch_at~0)| ~batch_at~0))) [2020-10-23 18:45:09,264 INFO L270 CegarLoopResult]: At program point L229-1(line 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-10-23 18:45:09,264 INFO L274 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-10-23 18:45:09,265 INFO L270 CegarLoopResult]: At program point net_send_batchENTRY(lines 205 215) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) [2020-10-23 18:45:09,265 INFO L274 CegarLoopResult]: For program point net_send_batchEXIT(lines 205 215) no Hoare annotation was computed. [2020-10-23 18:45:09,265 INFO L274 CegarLoopResult]: For program point net_send_batchFINAL(lines 205 215) no Hoare annotation was computed. [2020-10-23 18:45:09,265 INFO L270 CegarLoopResult]: At program point L210(line 210) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-10-23 18:45:09,265 INFO L274 CegarLoopResult]: For program point L210-1(line 210) no Hoare annotation was computed. [2020-10-23 18:45:09,266 INFO L274 CegarLoopResult]: For program point L210-2(lines 210 211) no Hoare annotation was computed. [2020-10-23 18:45:09,266 INFO L274 CegarLoopResult]: For program point L208-2(lines 208 213) no Hoare annotation was computed. [2020-10-23 18:45:09,266 INFO L270 CegarLoopResult]: At program point L208-3(lines 208 213) 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))) [2020-10-23 18:45:09,266 INFO L274 CegarLoopResult]: For program point L208-4(lines 208 213) no Hoare annotation was computed. [2020-10-23 18:45:09,266 INFO L270 CegarLoopResult]: At program point net_resetENTRY(lines 200 204) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (= |old(~batch_at~0)| ~batch_at~0)) [2020-10-23 18:45:09,267 INFO L274 CegarLoopResult]: For program point net_resetEXIT(lines 200 204) no Hoare annotation was computed. [2020-10-23 18:45:09,267 INFO L274 CegarLoopResult]: For program point net_resetFINAL(lines 200 204) no Hoare annotation was computed. [2020-10-23 18:45:09,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:45:09 BoogieIcfgContainer [2020-10-23 18:45:09,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:45:09,299 INFO L168 Benchmark]: Toolchain (without parser) took 3955.13 ms. Allocated memory was 151.0 MB in the beginning and 424.7 MB in the end (delta: 273.7 MB). Free memory was 126.7 MB in the beginning and 244.3 MB in the end (delta: -117.6 MB). Peak memory consumption was 162.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:45:09,300 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:45:09,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1581.24 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 126.1 MB in the beginning and 130.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 153.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:45:09,302 INFO L168 Benchmark]: Boogie Preprocessor took 50.17 ms. Allocated memory is still 239.1 MB. Free memory was 130.0 MB in the beginning and 128.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:45:09,303 INFO L168 Benchmark]: RCFGBuilder took 558.68 ms. Allocated memory is still 239.1 MB. Free memory was 128.5 MB in the beginning and 107.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:45:09,304 INFO L168 Benchmark]: TraceAbstraction took 1749.84 ms. Allocated memory was 239.1 MB in the beginning and 424.7 MB in the end (delta: 185.6 MB). Free memory was 107.0 MB in the beginning and 244.8 MB in the end (delta: -137.9 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:45:09,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1581.24 ms. Allocated memory was 151.0 MB in the beginning and 239.1 MB in the end (delta: 88.1 MB). Free memory was 126.1 MB in the beginning and 130.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 153.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.17 ms. Allocated memory is still 239.1 MB. Free memory was 130.0 MB in the beginning and 128.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 558.68 ms. Allocated memory is still 239.1 MB. Free memory was 128.5 MB in the beginning and 107.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1749.84 ms. Allocated memory was 239.1 MB in the beginning and 424.7 MB in the end (delta: 185.6 MB). Free memory was 107.0 MB in the beginning and 244.8 MB in the end (delta: -137.9 MB). Peak memory consumption was 53.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: !(batch_at + 1 <= fstTTL) || (batch_at <= i && \old(__tmpTR__int_1) == __tmpTR__int_1) - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: !(\old(batch_at) + 1 <= fstTTL) || (\old(__tmpTR__int_1) == __tmpTR__int_1 && \old(batch_at) == batch_at) - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 17 NumberOfFragments, 194 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FomulaSimplificationsInter, 424 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 2121 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...