./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro --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 af4f743cc6be4267a21638b2aaf4488875c5d1d37960e5576634d1fd02e8bed4 --- 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-8393723 [2022-11-18 19:53:08,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:53:08,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:53:08,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:53:08,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:53:08,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:53:08,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:53:08,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:53:08,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:53:08,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:53:08,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:53:08,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:53:08,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:53:08,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:53:08,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:53:08,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:53:08,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:53:08,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:53:08,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:53:08,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:53:08,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:53:08,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:53:08,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:53:08,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:53:08,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:53:08,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:53:08,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:53:08,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:53:08,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:53:08,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:53:08,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:53:08,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:53:08,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:53:08,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:53:08,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:53:08,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:53:08,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:53:08,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:53:08,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:53:08,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:53:08,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:53:08,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:53:08,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:53:08,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:53:08,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:53:08,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:53:08,219 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:53:08,219 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:53:08,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:53:08,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:53:08,221 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:53:08,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:53:08,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:53:08,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:53:08,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:53:08,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:53:08,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:53:08,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:53:08,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:53:08,224 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:53:08,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:53:08,225 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:53:08,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:53:08,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:53:08,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:53:08,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:53:08,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:08,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:53:08,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:53:08,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:53:08,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:53:08,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:53:08,229 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:53:08,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:53:08,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:53:08,230 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_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af4f743cc6be4267a21638b2aaf4488875c5d1d37960e5576634d1fd02e8bed4 [2022-11-18 19:53:08,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:53:08,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:53:08,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:53:08,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:53:08,598 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:53:08,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2022-11-18 19:53:08,688 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/data/88e1fa6e9/7653f017f35849998161dcf58072f3fc/FLAGf34d99ffa [2022-11-18 19:53:09,357 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:53:09,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c [2022-11-18 19:53:09,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/data/88e1fa6e9/7653f017f35849998161dcf58072f3fc/FLAGf34d99ffa [2022-11-18 19:53:09,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/data/88e1fa6e9/7653f017f35849998161dcf58072f3fc [2022-11-18 19:53:09,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:53:09,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:53:09,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:09,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:53:09,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:53:09,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:09" (1/1) ... [2022-11-18 19:53:09,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efcad77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:09, skipping insertion in model container [2022-11-18 19:53:09,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:53:09" (1/1) ... [2022-11-18 19:53:09,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:53:09,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:53:09,935 WARN L234 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_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c[1605,1618] [2022-11-18 19:53:10,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:10,115 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:53:10,130 WARN L234 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_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/sv-benchmarks/c/product-lines/minepump_spec3_product06.cil.c[1605,1618] [2022-11-18 19:53:10,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:53:10,222 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:53:10,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10 WrapperNode [2022-11-18 19:53:10,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:53:10,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:10,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:53:10,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:53:10,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,296 INFO L138 Inliner]: procedures = 51, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 160 [2022-11-18 19:53:10,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:53:10,301 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:53:10,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:53:10,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:53:10,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,329 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:53:10,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:53:10,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:53:10,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:53:10,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (1/1) ... [2022-11-18 19:53:10,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:10,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:10,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:10,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:53:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:53:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 19:53:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 19:53:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 19:53:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 19:53:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 19:53:10,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 19:53:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 19:53:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 19:53:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 19:53:10,467 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 19:53:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:53:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 19:53:10,468 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 19:53:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:53:10,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:53:10,602 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:53:10,604 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:53:10,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:53:10,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:53:11,011 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:53:11,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:11 BoogieIcfgContainer [2022-11-18 19:53:11,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:53:11,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:53:11,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:53:11,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:53:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:53:09" (1/3) ... [2022-11-18 19:53:11,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5602d8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:11, skipping insertion in model container [2022-11-18 19:53:11,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:53:10" (2/3) ... [2022-11-18 19:53:11,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5602d8b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:11, skipping insertion in model container [2022-11-18 19:53:11,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:11" (3/3) ... [2022-11-18 19:53:11,037 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2022-11-18 19:53:11,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:53:11,077 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:53:11,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:53:11,179 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;@29f43292, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:53:11,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:53:11,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 63 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 19:53:11,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 19:53:11,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:11,212 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] [2022-11-18 19:53:11,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1884919457, now seen corresponding path program 1 times [2022-11-18 19:53:11,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:11,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321653306] [2022-11-18 19:53:11,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:11,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:53:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:11,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:11,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321653306] [2022-11-18 19:53:11,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321653306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:11,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:11,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:53:11,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270178557] [2022-11-18 19:53:11,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:11,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:53:11,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:53:11,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:53:11,604 INFO L87 Difference]: Start difference. First operand has 75 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 63 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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) [2022-11-18 19:53:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:11,671 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-18 19:53:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:53:11,674 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 [2022-11-18 19:53:11,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:11,692 INFO L225 Difference]: With dead ends: 142 [2022-11-18 19:53:11,692 INFO L226 Difference]: Without dead ends: 66 [2022-11-18 19:53:11,697 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 [2022-11-18 19:53:11,704 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2022-11-18 19:53:11,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:53:11,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-18 19:53:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-18 19:53:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.3) internal successors, (65), 55 states have internal predecessors, (65), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 19:53:11,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-11-18 19:53:11,790 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 25 [2022-11-18 19:53:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:11,791 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-11-18 19:53:11,792 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) [2022-11-18 19:53:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-11-18 19:53:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 19:53:11,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:11,798 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] [2022-11-18 19:53:11,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:53:11,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:11,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1772124439, now seen corresponding path program 1 times [2022-11-18 19:53:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:11,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973712128] [2022-11-18 19:53:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:11,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:53:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:12,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:12,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973712128] [2022-11-18 19:53:12,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973712128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:12,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:12,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:53:12,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714368823] [2022-11-18 19:53:12,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:12,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:53:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:12,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:53:12,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:53:12,042 INFO L87 Difference]: Start difference. First operand 66 states and 84 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) [2022-11-18 19:53:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:12,077 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-11-18 19:53:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:53:12,079 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 [2022-11-18 19:53:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:12,097 INFO L225 Difference]: With dead ends: 97 [2022-11-18 19:53:12,097 INFO L226 Difference]: Without dead ends: 57 [2022-11-18 19:53:12,098 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 [2022-11-18 19:53:12,100 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 13 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 125 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 [2022-11-18 19:53:12,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:53:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-18 19:53:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-18 19:53:12,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 49 states have internal predecessors, (58), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 19:53:12,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-11-18 19:53:12,114 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 26 [2022-11-18 19:53:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-11-18 19:53:12,115 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) [2022-11-18 19:53:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-11-18 19:53:12,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 19:53:12,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:12,117 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] [2022-11-18 19:53:12,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:53:12,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:12,119 INFO L85 PathProgramCache]: Analyzing trace with hash -735726567, now seen corresponding path program 1 times [2022-11-18 19:53:12,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:12,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366133] [2022-11-18 19:53:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:12,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:53:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:12,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:12,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366133] [2022-11-18 19:53:12,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366133] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:12,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:12,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:53:12,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690821226] [2022-11-18 19:53:12,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:12,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:53:12,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:12,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:53:12,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:53:12,392 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-11-18 19:53:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:12,514 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2022-11-18 19:53:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:12,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 31 [2022-11-18 19:53:12,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:12,516 INFO L225 Difference]: With dead ends: 107 [2022-11-18 19:53:12,516 INFO L226 Difference]: Without dead ends: 57 [2022-11-18 19:53:12,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:53:12,519 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 138 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:12,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 139 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:53:12,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-18 19:53:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-18 19:53:12,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 19:53:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-11-18 19:53:12,545 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 31 [2022-11-18 19:53:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:12,546 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-11-18 19:53:12,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2022-11-18 19:53:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-11-18 19:53:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 19:53:12,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:12,550 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] [2022-11-18 19:53:12,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:53:12,551 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:12,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash -499241908, now seen corresponding path program 1 times [2022-11-18 19:53:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:12,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761681214] [2022-11-18 19:53:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:53:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:53:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:12,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:12,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761681214] [2022-11-18 19:53:12,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761681214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:12,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:12,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:12,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262053240] [2022-11-18 19:53:12,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:12,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:12,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:12,758 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-11-18 19:53:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:12,872 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2022-11-18 19:53:12,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:53:12,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 36 [2022-11-18 19:53:12,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:12,875 INFO L225 Difference]: With dead ends: 153 [2022-11-18 19:53:12,878 INFO L226 Difference]: Without dead ends: 103 [2022-11-18 19:53:12,880 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 [2022-11-18 19:53:12,881 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 41 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:12,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 284 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:53:12,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-11-18 19:53:12,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-11-18 19:53:12,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 84 states have internal predecessors, (98), 14 states have call successors, (14), 10 states have call predecessors, (14), 9 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2022-11-18 19:53:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2022-11-18 19:53:12,925 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 36 [2022-11-18 19:53:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:12,925 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2022-11-18 19:53:12,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-11-18 19:53:12,926 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2022-11-18 19:53:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 19:53:12,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:12,931 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, 1] [2022-11-18 19:53:12,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:53:12,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:12,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash 810891442, now seen corresponding path program 1 times [2022-11-18 19:53:12,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:12,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278452169] [2022-11-18 19:53:12,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:12,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:53:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:53:13,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:53:13,053 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:53:13,056 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:53:13,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:53:13,063 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 19:53:13,068 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:53:13,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:53:13 BoogieIcfgContainer [2022-11-18 19:53:13,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:53:13,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:53:13,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:53:13,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:53:13,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:11" (3/4) ... [2022-11-18 19:53:13,141 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 19:53:13,217 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:53:13,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:53:13,218 INFO L158 Benchmark]: Toolchain (without parser) took 3608.55ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 40.2MB in the end (delta: 48.9MB). Peak memory consumption was 48.8MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,219 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:53:13,220 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.91ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 91.9MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.15ms. Allocated memory is still 123.7MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,221 INFO L158 Benchmark]: Boogie Preprocessor took 32.20ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,221 INFO L158 Benchmark]: RCFGBuilder took 680.27ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 73.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,222 INFO L158 Benchmark]: TraceAbstraction took 2119.99ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 44.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,222 INFO L158 Benchmark]: Witness Printer took 79.75ms. Allocated memory is still 123.7MB. Free memory was 43.6MB in the beginning and 40.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:53:13,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.91ms. Allocated memory is still 123.7MB. Free memory was 89.1MB in the beginning and 91.9MB in the end (delta: -2.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.15ms. Allocated memory is still 123.7MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.20ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.27ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 73.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2119.99ms. Allocated memory is still 123.7MB. Free memory was 72.3MB in the beginning and 44.4MB in the end (delta: 27.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 79.75ms. Allocated memory is still 123.7MB. Free memory was 43.6MB in the beginning and 40.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L320] int methaneLevelCritical = 0; [L106] int pumpRunning = 0; [L319] int waterLevel = 1; [L107] int systemActive = 1; [L399] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L472] int retValue_acc ; [L473] int tmp ; [L477] FCALL select_helpers() [L478] FCALL select_features() [L479] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L479] RET, EXPR valid_product() [L479] tmp = valid_product() [L481] COND TRUE \read(tmp) [L483] FCALL setup() [L484] CALL runTest() [L466] CALL test() [L252] int splverifierCounter ; [L253] int tmp ; [L254] int tmp___0 ; [L255] int tmp___1 ; [L256] int tmp___2 ; [L259] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L261] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L263] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L269] tmp = __VERIFIER_nondet_int() [L271] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L273] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] COND TRUE waterLevel < 2 [L338] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L273] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L279] tmp___0 = __VERIFIER_nondet_int() [L281] 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] [L289] tmp___2 = __VERIFIER_nondet_int() [L291] COND FALSE !(\read(tmp___2)) [L297] tmp___1 = __VERIFIER_nondet_int() [L299] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L306] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L121] COND TRUE \read(systemActive) [L123] CALL processEnvironment() [L143] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L146] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L161] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L123] RET processEnvironment() [L129] CALL __utac_acc__Specification3_spec__1() [L862] int tmp ; [L863] int tmp___0 ; [L864] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L868] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] int retValue_acc ; [L361] retValue_acc = methaneLevelCritical [L362] 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] [L868] 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] [L868] tmp = isMethaneLevelCritical() [L870] COND FALSE !(\read(tmp)) [L874] CALL, EXPR getWaterLevel() [L390] int retValue_acc ; [L393] retValue_acc = waterLevel [L394] 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] [L874] RET, EXPR getWaterLevel() [L874] tmp___0 = getWaterLevel() [L876] COND TRUE tmp___0 == 2 [L878] CALL, EXPR isPumpRunning() [L195] int retValue_acc ; [L198] retValue_acc = pumpRunning [L199] 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] [L878] RET, EXPR isPumpRunning() [L878] tmp___1 = isPumpRunning() [L880] COND FALSE !(\read(tmp___1)) [L884] CALL __automaton_fail() [L54] 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 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 641 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 305 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2022-11-18 19:53:13,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3b3ba13-8ea7-47da-b495-fb43c24d39b4/bin/uautomizer-TMbwUNV5ro/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