./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:18:50,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:18:50,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:18:50,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:18:50,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:18:50,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:18:50,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:18:50,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:18:50,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:18:50,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:18:50,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:18:50,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:18:50,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:18:50,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:18:50,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:18:50,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:18:50,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:18:50,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:18:50,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:18:50,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:18:50,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:18:50,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:18:50,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:18:50,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:18:50,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:18:50,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:18:50,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:18:50,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:18:50,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:18:50,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:18:50,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:18:50,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:18:50,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:18:50,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:18:50,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:18:50,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:18:50,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:18:50,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:18:50,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:18:50,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:18:50,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:18:50,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:18:50,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:18:50,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:18:50,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:18:50,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:18:50,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:18:50,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:18:50,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:18:50,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:18:50,430 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:18:50,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:18:50,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:18:50,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:18:50,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:18:50,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:18:50,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:18:50,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:18:50,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:18:50,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:18:50,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:18:50,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:18:50,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:18:50,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:18:50,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:18:50,434 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:18:50,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:18:50,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:18:50,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:18:50,435 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:18:50,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:18:50,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:18:50,437 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:18:50,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:18:50,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:18:50,438 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e8d46dd9ecc40481581770f17d7ff7eeb44cf0ae7cc4edb04be6d125fad45fc [2022-11-21 17:18:50,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:18:50,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:18:50,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:18:50,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:18:50,779 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:18:50,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2022-11-21 17:18:53,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:18:54,078 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:18:54,079 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c [2022-11-21 17:18:54,089 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/data/d690fc74e/3d3a2bbc13aa4883abd2c16f85f4496d/FLAG6e611b600 [2022-11-21 17:18:54,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/data/d690fc74e/3d3a2bbc13aa4883abd2c16f85f4496d [2022-11-21 17:18:54,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:18:54,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:18:54,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:18:54,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:18:54,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:18:54,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757fbd4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54, skipping insertion in model container [2022-11-21 17:18:54,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:18:54,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:18:54,358 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2022-11-21 17:18:54,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:18:54,450 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:18:54,479 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/sv-benchmarks/c/product-lines/minepump_spec3_product13.cil.c[3343,3356] [2022-11-21 17:18:54,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:18:54,593 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:18:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54 WrapperNode [2022-11-21 17:18:54,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:18:54,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:18:54,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:18:54,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:18:54,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,660 INFO L138 Inliner]: procedures = 51, calls = 95, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 148 [2022-11-21 17:18:54,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:18:54,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:18:54,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:18:54,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:18:54,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:18:54,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:18:54,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:18:54,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:18:54,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (1/1) ... [2022-11-21 17:18:54,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:18:54,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:18:54,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:18:54,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:18:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:18:54,797 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 17:18:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 17:18:54,798 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 17:18:54,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 17:18:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-21 17:18:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-21 17:18:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-21 17:18:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-21 17:18:54,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 17:18:54,799 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 17:18:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-21 17:18:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-21 17:18:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:18:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-21 17:18:54,800 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-21 17:18:54,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:18:54,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:18:54,908 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:18:54,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:18:55,190 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:18:55,197 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:18:55,197 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:18:55,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:55 BoogieIcfgContainer [2022-11-21 17:18:55,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:18:55,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:18:55,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:18:55,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:18:55,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:18:54" (1/3) ... [2022-11-21 17:18:55,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791360e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:55, skipping insertion in model container [2022-11-21 17:18:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:18:54" (2/3) ... [2022-11-21 17:18:55,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791360e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:18:55, skipping insertion in model container [2022-11-21 17:18:55,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:55" (3/3) ... [2022-11-21 17:18:55,209 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2022-11-21 17:18:55,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:18:55,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:18:55,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:18:55,331 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@648ca9bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:18:55,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:18:55,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 64 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-21 17:18:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 17:18:55,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:55,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:55,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -427148648, now seen corresponding path program 1 times [2022-11-21 17:18:55,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:55,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359185968] [2022-11-21 17:18:55,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:55,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:18:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:18:55,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:18:55,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359185968] [2022-11-21 17:18:55,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359185968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:18:55,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:18:55,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:18:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316476848] [2022-11-21 17:18:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:18:55,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:18:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:18:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:18:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:18:55,685 INFO L87 Difference]: Start difference. First operand has 78 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 64 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:55,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:18:55,754 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-21 17:18:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:18:55,757 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-21 17:18:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:18:55,766 INFO L225 Difference]: With dead ends: 148 [2022-11-21 17:18:55,766 INFO L226 Difference]: Without dead ends: 69 [2022-11-21 17:18:55,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:18:55,772 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:18:55,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:18:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-21 17:18:55,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-21 17:18:55,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 56 states have internal predecessors, (66), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-21 17:18:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2022-11-21 17:18:55,814 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 25 [2022-11-21 17:18:55,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:18:55,814 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2022-11-21 17:18:55,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2022-11-21 17:18:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:18:55,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:55,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:55,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:18:55,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:55,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash 595185369, now seen corresponding path program 1 times [2022-11-21 17:18:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:55,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326936297] [2022-11-21 17:18:55,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:55,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 17:18:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:18:55,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:18:55,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326936297] [2022-11-21 17:18:55,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326936297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:18:55,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:18:55,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:18:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114866915] [2022-11-21 17:18:55,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:18:55,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:18:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:18:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:18:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:18:55,934 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:18:55,950 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2022-11-21 17:18:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:18:55,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-21 17:18:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:18:55,952 INFO L225 Difference]: With dead ends: 104 [2022-11-21 17:18:55,952 INFO L226 Difference]: Without dead ends: 60 [2022-11-21 17:18:55,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:18:55,954 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 12 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:18:55,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:18:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-21 17:18:55,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-21 17:18:55,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-21 17:18:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 75 transitions. [2022-11-21 17:18:55,969 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 75 transitions. Word has length 26 [2022-11-21 17:18:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:18:55,970 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 75 transitions. [2022-11-21 17:18:55,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2022-11-21 17:18:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 17:18:55,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:55,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:55,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:18:55,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:55,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:55,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2103466448, now seen corresponding path program 1 times [2022-11-21 17:18:55,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:55,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65941536] [2022-11-21 17:18:55,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:55,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:18:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:18:56,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:18:56,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65941536] [2022-11-21 17:18:56,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65941536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:18:56,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:18:56,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:18:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049276337] [2022-11-21 17:18:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:18:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:18:56,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:18:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:18:56,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:18:56,140 INFO L87 Difference]: Start difference. First operand 60 states and 75 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:18:56,304 INFO L93 Difference]: Finished difference Result 113 states and 144 transitions. [2022-11-21 17:18:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:18:56,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-11-21 17:18:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:18:56,306 INFO L225 Difference]: With dead ends: 113 [2022-11-21 17:18:56,306 INFO L226 Difference]: Without dead ends: 60 [2022-11-21 17:18:56,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:18:56,308 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 101 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:18:56,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 146 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:18:56,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-21 17:18:56,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-21 17:18:56,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 45 states have (on average 1.288888888888889) internal successors, (58), 50 states have internal predecessors, (58), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-21 17:18:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2022-11-21 17:18:56,320 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 30 [2022-11-21 17:18:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:18:56,321 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2022-11-21 17:18:56,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:18:56,321 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2022-11-21 17:18:56,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-21 17:18:56,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:56,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:56,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:18:56,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:56,324 INFO L85 PathProgramCache]: Analyzing trace with hash -911409767, now seen corresponding path program 1 times [2022-11-21 17:18:56,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:56,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618328591] [2022-11-21 17:18:56,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:56,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:18:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 17:18:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:18:56,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:18:56,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618328591] [2022-11-21 17:18:56,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618328591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:18:56,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:18:56,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:18:56,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771163925] [2022-11-21 17:18:56,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:18:56,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:18:56,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:18:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:18:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:18:56,537 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:18:56,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:18:56,597 INFO L93 Difference]: Finished difference Result 162 states and 208 transitions. [2022-11-21 17:18:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:18:56,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-21 17:18:56,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:18:56,600 INFO L225 Difference]: With dead ends: 162 [2022-11-21 17:18:56,600 INFO L226 Difference]: Without dead ends: 109 [2022-11-21 17:18:56,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:18:56,602 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 45 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:18:56,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 299 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:18:56,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-21 17:18:56,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2022-11-21 17:18:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 86 states have internal predecessors, (100), 16 states have call successors, (16), 12 states have call predecessors, (16), 11 states have return successors, (17), 13 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-21 17:18:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 133 transitions. [2022-11-21 17:18:56,628 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 133 transitions. Word has length 35 [2022-11-21 17:18:56,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:18:56,630 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 133 transitions. [2022-11-21 17:18:56,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:18:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 133 transitions. [2022-11-21 17:18:56,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-21 17:18:56,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:56,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:56,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:18:56,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:56,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1013292140, now seen corresponding path program 1 times [2022-11-21 17:18:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:56,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191342159] [2022-11-21 17:18:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:56,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 17:18:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:18:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:18:56,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:18:56,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:18:56,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191342159] [2022-11-21 17:18:56,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191342159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:18:56,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:18:56,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:18:56,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108818144] [2022-11-21 17:18:56,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:18:56,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:18:56,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:18:56,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:18:56,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:18:56,773 INFO L87 Difference]: Start difference. First operand 106 states and 133 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:18:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:18:56,819 INFO L93 Difference]: Finished difference Result 182 states and 231 transitions. [2022-11-21 17:18:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:18:56,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-21 17:18:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:18:56,824 INFO L225 Difference]: With dead ends: 182 [2022-11-21 17:18:56,824 INFO L226 Difference]: Without dead ends: 83 [2022-11-21 17:18:56,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:18:56,827 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:18:56,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:18:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-21 17:18:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-21 17:18:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-21 17:18:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2022-11-21 17:18:56,838 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 37 [2022-11-21 17:18:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:18:56,839 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2022-11-21 17:18:56,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:18:56,839 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2022-11-21 17:18:56,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-21 17:18:56,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:18:56,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:18:56,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:18:56,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:18:56,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:18:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1779490157, now seen corresponding path program 1 times [2022-11-21 17:18:56,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:18:56,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152848990] [2022-11-21 17:18:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:18:56,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:18:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:18:56,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:18:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:18:56,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:18:56,897 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:18:56,899 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:18:56,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:18:56,904 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 17:18:56,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:18:56,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:18:56 BoogieIcfgContainer [2022-11-21 17:18:56,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:18:56,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:18:56,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:18:56,945 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:18:56,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:18:55" (3/4) ... [2022-11-21 17:18:56,947 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 17:18:57,001 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:18:57,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:18:57,002 INFO L158 Benchmark]: Toolchain (without parser) took 2884.47ms. Allocated memory is still 155.2MB. Free memory was 112.8MB in the beginning and 82.4MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,002 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 56.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:18:57,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 472.36ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 94.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.00ms. Allocated memory is still 155.2MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,003 INFO L158 Benchmark]: Boogie Preprocessor took 53.92ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,003 INFO L158 Benchmark]: RCFGBuilder took 483.35ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 118.5MB in the end (delta: -27.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,004 INFO L158 Benchmark]: TraceAbstraction took 1742.94ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 86.6MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,004 INFO L158 Benchmark]: Witness Printer took 56.63ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 82.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:18:57,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 107.0MB. Free memory was 56.2MB in the beginning and 56.0MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 472.36ms. Allocated memory is still 155.2MB. Free memory was 112.5MB in the beginning and 94.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.00ms. Allocated memory is still 155.2MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.92ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 90.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.35ms. Allocated memory is still 155.2MB. Free memory was 90.7MB in the beginning and 118.5MB in the end (delta: -27.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1742.94ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 86.6MB in the end (delta: 30.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 56.63ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 82.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 178]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L183] int cleanupTimeShifts = 4; [L285] int pumpRunning = 0; [L286] int systemActive = 1; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; [L264] FCALL select_helpers() [L265] FCALL select_features() [L266] CALL, EXPR valid_product() [L165] int retValue_acc ; [L168] retValue_acc = 1 [L169] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L266] RET, EXPR valid_product() [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) [L270] FCALL setup() [L271] CALL runTest() [L253] CALL test() [L471] int splverifierCounter ; [L472] int tmp ; [L473] int tmp___0 ; [L474] int tmp___1 ; [L475] int tmp___2 ; [L478] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L480] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L482] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L488] tmp = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L492] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] COND TRUE waterLevel < 2 [L75] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L492] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L498] tmp___0 = __VERIFIER_nondet_int() [L500] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L508] tmp___2 = __VERIFIER_nondet_int() [L510] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L523] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND TRUE \read(systemActive) [L302] CALL processEnvironment() [L322] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L340] FCALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] RET processEnvironment() [L308] CALL __utac_acc__Specification3_spec__1() [L437] int tmp ; [L438] int tmp___0 ; [L439] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L95] int retValue_acc ; [L98] retValue_acc = methaneLevelCritical [L99] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L443] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] tmp = isMethaneLevelCritical() [L445] COND FALSE !(\read(tmp)) [L449] CALL, EXPR getWaterLevel() [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L449] RET, EXPR getWaterLevel() [L449] tmp___0 = getWaterLevel() [L451] COND TRUE tmp___0 == 2 [L453] CALL, EXPR isPumpRunning() [L391] int retValue_acc ; [L394] retValue_acc = pumpRunning [L395] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L453] RET, EXPR isPumpRunning() [L453] tmp___1 = isPumpRunning() [L455] COND FALSE !(\read(tmp___1)) [L459] CALL __automaton_fail() [L178] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 726 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 355 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 371 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 incorrect! [2022-11-21 17:18:57,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296017aa-0c9b-40d4-97c3-4849b00bf998/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE