/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -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-d623d84 [2020-07-20 12:14:40,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:14:40,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:14:40,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:14:40,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:14:40,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:14:40,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:14:40,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:14:40,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:14:40,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:14:40,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:14:40,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:14:40,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:14:40,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:14:40,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:14:40,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:14:40,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:14:40,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:14:40,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:14:40,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:14:40,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:14:40,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:14:40,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:14:40,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:14:40,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 12:14:40,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:14:40,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:14:40,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:14:40,655 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 [2020-07-20 12:14:40,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:14:40,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:14:40,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:14:40,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:14:40,734 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:14:40,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:14:40,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:14:40,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:14:40,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:14:40,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:14:40,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:14:40,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:14:40,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:14:40,740 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:14:40,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:14:40,741 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:14:40,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:14:40,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:14:40,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:14:40,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:14:40,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:14:40,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:14:40,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:14:40,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:14:40,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:14:40,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:14:40,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:14:40,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:14:40,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:14:40,748 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 12:14:41,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:14:41,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:14:41,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:14:41,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:14:41,318 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:14:41,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-07-20 12:14:41,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5620841e/a926f4b51ac04d70b451fc8ceef1e32a/FLAG82d938f07 [2020-07-20 12:14:42,374 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:14:42,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2020-07-20 12:14:42,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5620841e/a926f4b51ac04d70b451fc8ceef1e32a/FLAG82d938f07 [2020-07-20 12:14:42,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5620841e/a926f4b51ac04d70b451fc8ceef1e32a [2020-07-20 12:14:42,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:14:42,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:14:42,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:14:42,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:14:42,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:14:42,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:42" (1/1) ... [2020-07-20 12:14:42,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8434536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:42, skipping insertion in model container [2020-07-20 12:14:42,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:14:42" (1/1) ... [2020-07-20 12:14:42,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:14:42,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:14:43,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:14:44,853 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:14:44,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:14:45,043 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:14:45,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45 WrapperNode [2020-07-20 12:14:45,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:14:45,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:14:45,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:14:45,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:14:45,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (1/1) ... [2020-07-20 12:14:45,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:14:45,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:14:45,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:14:45,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:14:45,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (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 [2020-07-20 12:14:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:14:45,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:14:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 12:14:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2020-07-20 12:14:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2020-07-20 12:14:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2020-07-20 12:14:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:14:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:14:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2020-07-20 12:14:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2020-07-20 12:14:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2020-07-20 12:14:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2020-07-20 12:14:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 12:14:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 12:14:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 12:14:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:14:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 12:14:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:14:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 12:14:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:14:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 12:14:46,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:14:46,347 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 12:14:46,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:14:46 BoogieIcfgContainer [2020-07-20 12:14:46,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:14:46,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:14:46,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:14:46,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:14:46,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:14:42" (1/3) ... [2020-07-20 12:14:46,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0fd5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:14:46, skipping insertion in model container [2020-07-20 12:14:46,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:14:45" (2/3) ... [2020-07-20 12:14:46,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0fd5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:14:46, skipping insertion in model container [2020-07-20 12:14:46,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:14:46" (3/3) ... [2020-07-20 12:14:46,375 INFO L109 eAbstractionObserver]: Analyzing ICFG net_reset.c [2020-07-20 12:14:46,395 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:14:46,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:14:46,431 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:14:46,468 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:14:46,468 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:14:46,468 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:14:46,469 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:14:46,469 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:14:46,469 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:14:46,469 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:14:46,469 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:14:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-20 12:14:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-20 12:14:46,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:14:46,518 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] [2020-07-20 12:14:46,519 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:14:46,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:14:46,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1559425920, now seen corresponding path program 1 times [2020-07-20 12:14:46,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:14:46,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066952011] [2020-07-20 12:14:46,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:14:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:14:46,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 12:14:46,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:14:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:14:46,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:14:46,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066952011] [2020-07-20 12:14:46,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:14:46,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 12:14:46,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674143770] [2020-07-20 12:14:46,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 12:14:46,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:14:46,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 12:14:46,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 12:14:46,909 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-07-20 12:14:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:14:47,125 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-07-20 12:14:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 12:14:47,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-07-20 12:14:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:14:47,148 INFO L225 Difference]: With dead ends: 52 [2020-07-20 12:14:47,149 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 12:14:47,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 12:14:47,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 12:14:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 12:14:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 12:14:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 12:14:47,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-07-20 12:14:47,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:14:47,240 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 12:14:47,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 12:14:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 12:14:47,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 12:14:47,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:14:47,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 12:14:47,718 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:14:47,720 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:14:47,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:14:47,720 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:14:47,720 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2020-07-20 12:14:47,721 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:14:47,721 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:14:47,721 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 231 235) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,722 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 231 235) no Hoare annotation was computed. [2020-07-20 12:14:47,722 INFO L264 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,722 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 231 235) no Hoare annotation was computed. [2020-07-20 12:14:47,723 INFO L268 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-07-20 12:14:47,723 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 12:14:47,723 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-07-20 12:14:47,723 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 191 196) the Hoare annotation is: true [2020-07-20 12:14:47,723 INFO L268 CegarLoopResult]: For program point L192-2(lines 191 196) no Hoare annotation was computed. [2020-07-20 12:14:47,724 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 191 196) no Hoare annotation was computed. [2020-07-20 12:14:47,724 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-07-20 12:14:47,724 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-07-20 12:14:47,724 INFO L268 CegarLoopResult]: For program point net_reopenEXIT(lines 214 229) no Hoare annotation was computed. [2020-07-20 12:14:47,725 INFO L268 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2020-07-20 12:14:47,725 INFO L264 CegarLoopResult]: At program point net_reopenENTRY(lines 214 229) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,725 INFO L268 CegarLoopResult]: For program point net_reopenFINAL(lines 214 229) no Hoare annotation was computed. [2020-07-20 12:14:47,725 INFO L268 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2020-07-20 12:14:47,726 INFO L264 CegarLoopResult]: At program point L216(lines 216 226) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,726 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-07-20 12:14:47,726 INFO L264 CegarLoopResult]: At program point L227(line 227) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,727 INFO L264 CegarLoopResult]: At program point L227-1(line 227) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,727 INFO L271 CegarLoopResult]: At program point net_send_batchENTRY(lines 203 213) the Hoare annotation is: true [2020-07-20 12:14:47,727 INFO L268 CegarLoopResult]: For program point net_send_batchEXIT(lines 203 213) no Hoare annotation was computed. [2020-07-20 12:14:47,727 INFO L268 CegarLoopResult]: For program point net_send_batchFINAL(lines 203 213) no Hoare annotation was computed. [2020-07-20 12:14:47,728 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2020-07-20 12:14:47,728 INFO L268 CegarLoopResult]: For program point L208-1(line 208) no Hoare annotation was computed. [2020-07-20 12:14:47,728 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 209) no Hoare annotation was computed. [2020-07-20 12:14:47,728 INFO L268 CegarLoopResult]: For program point L206-2(lines 206 211) no Hoare annotation was computed. [2020-07-20 12:14:47,729 INFO L264 CegarLoopResult]: At program point L206-3(lines 206 211) the Hoare annotation is: (or (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) (<= ~batch_at~0 net_send_batch_~i~0)) [2020-07-20 12:14:47,729 INFO L268 CegarLoopResult]: For program point L206-4(lines 206 211) no Hoare annotation was computed. [2020-07-20 12:14:47,729 INFO L264 CegarLoopResult]: At program point net_resetENTRY(lines 198 202) the Hoare annotation is: (or (<= (+ ~batch_at~0 1) ~fstTTL~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2020-07-20 12:14:47,729 INFO L268 CegarLoopResult]: For program point net_resetEXIT(lines 198 202) no Hoare annotation was computed. [2020-07-20 12:14:47,730 INFO L268 CegarLoopResult]: For program point net_resetFINAL(lines 198 202) no Hoare annotation was computed. [2020-07-20 12:14:47,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:14:47 BoogieIcfgContainer [2020-07-20 12:14:47,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 12:14:47,772 INFO L168 Benchmark]: Toolchain (without parser) took 5190.63 ms. Allocated memory was 144.2 MB in the beginning and 263.7 MB in the end (delta: 119.5 MB). Free memory was 102.2 MB in the beginning and 76.9 MB in the end (delta: 25.3 MB). Peak memory consumption was 144.8 MB. Max. memory is 7.1 GB. [2020-07-20 12:14:47,773 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 12:14:47,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2456.99 ms. Allocated memory was 144.2 MB in the beginning and 263.7 MB in the end (delta: 119.5 MB). Free memory was 101.8 MB in the beginning and 153.4 MB in the end (delta: -51.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 7.1 GB. [2020-07-20 12:14:47,776 INFO L168 Benchmark]: Boogie Preprocessor took 180.53 ms. Allocated memory is still 263.7 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 12:14:47,777 INFO L168 Benchmark]: RCFGBuilder took 1125.38 ms. Allocated memory is still 263.7 MB. Free memory was 151.3 MB in the beginning and 131.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-20 12:14:47,778 INFO L168 Benchmark]: TraceAbstraction took 1406.57 ms. Allocated memory is still 263.7 MB. Free memory was 129.6 MB in the beginning and 76.9 MB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2020-07-20 12:14:47,782 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 144.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2456.99 ms. Allocated memory was 144.2 MB in the beginning and 263.7 MB in the end (delta: 119.5 MB). Free memory was 101.8 MB in the beginning and 153.4 MB in the end (delta: -51.5 MB). Peak memory consumption was 178.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.53 ms. Allocated memory is still 263.7 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1125.38 ms. Allocated memory is still 263.7 MB. Free memory was 151.3 MB in the beginning and 131.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1406.57 ms. Allocated memory is still 263.7 MB. Free memory was 129.6 MB in the beginning and 76.9 MB in the end (delta: 52.6 MB). Peak memory consumption was 52.6 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 - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: batch_at + 1 <= fstTTL || !(\old(batch_at) + 1 <= fstTTL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 28 SDslu, 18 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 109 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 760 SizeOfPredicates, 3 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 3 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...