./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN --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 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c --- 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-6b4ec56 [2022-11-20 11:30:51,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:30:51,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:30:51,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:30:51,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:30:51,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:30:51,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:30:51,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:30:51,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:30:51,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:30:51,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:30:51,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:30:51,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:30:51,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:30:51,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:30:51,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:30:51,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:30:51,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:30:51,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:30:51,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:30:51,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:30:51,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:30:51,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:30:51,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:30:51,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:30:51,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:30:51,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:30:51,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:30:51,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:30:51,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:30:51,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:30:51,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:30:51,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:30:51,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:30:51,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:30:51,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:30:51,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:30:51,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:30:51,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:30:51,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:30:51,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:30:51,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:30:51,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:30:51,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:30:51,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:30:51,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:30:51,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:30:51,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:30:51,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:30:51,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:30:51,188 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:30:51,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:30:51,188 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:30:51,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:30:51,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:30:51,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:30:51,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:30:51,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:30:51,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:30:51,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:30:51,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:30:51,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:30:51,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:30:51,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:30:51,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:30:51,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:30:51,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:51,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:30:51,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:30:51,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:30:51,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:30:51,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:30:51,195 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:30:51,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:30:51,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:30:51,196 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_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed8e4dea18b15d78522f05bcbacefb8bf743c0552ef5a7415602905a04fdc4c [2022-11-20 11:30:51,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:30:51,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:30:51,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:30:51,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:30:51,567 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:30:51,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-11-20 11:30:55,267 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:30:55,592 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:30:55,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c [2022-11-20 11:30:55,619 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/data/afd6c7810/a36291a2d75e431f8ebc4df7205c9f84/FLAG86cd0e93c [2022-11-20 11:30:55,641 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/data/afd6c7810/a36291a2d75e431f8ebc4df7205c9f84 [2022-11-20 11:30:55,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:30:55,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:30:55,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:55,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:30:55,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:30:55,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:55" (1/1) ... [2022-11-20 11:30:55,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f6dcd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:55, skipping insertion in model container [2022-11-20 11:30:55,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:30:55" (1/1) ... [2022-11-20 11:30:55,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:30:55,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:30:55,925 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_8870babd-9c56-425b-ab18-cf8d54e8444c/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-11-20 11:30:56,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:56,134 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:30:56,154 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_8870babd-9c56-425b-ab18-cf8d54e8444c/sv-benchmarks/c/product-lines/minepump_spec1_product58.cil.c[1605,1618] [2022-11-20 11:30:56,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:30:56,239 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:30:56,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56 WrapperNode [2022-11-20 11:30:56,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:30:56,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:56,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:30:56,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:30:56,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,309 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 215 [2022-11-20 11:30:56,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:30:56,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:30:56,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:30:56,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:30:56,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:30:56,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:30:56,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:30:56,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:30:56,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (1/1) ... [2022-11-20 11:30:56,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:30:56,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:30:56,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:30:56,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:30:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:30:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 11:30:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 11:30:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 11:30:56,459 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 11:30:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 11:30:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 11:30:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 11:30:56,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 11:30:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:30:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:30:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 11:30:56,461 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 11:30:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:30:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 11:30:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 11:30:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:30:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:30:56,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:30:56,571 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:30:57,055 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:30:57,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:30:57,075 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 11:30:57,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:57 BoogieIcfgContainer [2022-11-20 11:30:57,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:30:57,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:30:57,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:30:57,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:30:57,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:30:55" (1/3) ... [2022-11-20 11:30:57,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bc196a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:57, skipping insertion in model container [2022-11-20 11:30:57,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:30:56" (2/3) ... [2022-11-20 11:30:57,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26bc196a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:30:57, skipping insertion in model container [2022-11-20 11:30:57,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:57" (3/3) ... [2022-11-20 11:30:57,088 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2022-11-20 11:30:57,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:30:57,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:30:57,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:30:57,235 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;@7aa24112, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:30:57,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:30:57,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 11:30:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 11:30:57,263 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:57,264 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] [2022-11-20 11:30:57,266 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:57,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:57,274 INFO L85 PathProgramCache]: Analyzing trace with hash 528843452, now seen corresponding path program 1 times [2022-11-20 11:30:57,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:57,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367159922] [2022-11-20 11:30:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 11:30:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:57,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:57,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367159922] [2022-11-20 11:30:57,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367159922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:57,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:57,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:30:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972896114] [2022-11-20 11:30:57,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:57,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:30:57,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:30:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:30:57,614 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-11-20 11:30:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:57,701 INFO L93 Difference]: Finished difference Result 176 states and 239 transitions. [2022-11-20 11:30:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:30:57,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-11-20 11:30:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:57,718 INFO L225 Difference]: With dead ends: 176 [2022-11-20 11:30:57,719 INFO L226 Difference]: Without dead ends: 83 [2022-11-20 11:30:57,726 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 [2022-11-20 11:30:57,732 INFO L413 NwaCegarLoop]: 116 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, 116 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 [2022-11-20 11:30:57,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:30:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-20 11:30:57,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-20 11:30:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 11:30:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-11-20 11:30:57,786 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 23 [2022-11-20 11:30:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:57,786 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-11-20 11:30:57,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-11-20 11:30:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-11-20 11:30:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:30:57,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:57,790 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] [2022-11-20 11:30:57,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:30:57,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:57,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1324255922, now seen corresponding path program 1 times [2022-11-20 11:30:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:57,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417150101] [2022-11-20 11:30:57,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:57,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 11:30:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:57,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:57,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417150101] [2022-11-20 11:30:57,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417150101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:57,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:57,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:30:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365684060] [2022-11-20 11:30:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:57,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:30:57,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:57,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:30:57,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:57,924 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-20 11:30:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:57,948 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2022-11-20 11:30:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:30:57,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-11-20 11:30:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:57,951 INFO L225 Difference]: With dead ends: 131 [2022-11-20 11:30:57,951 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 11:30:57,952 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 [2022-11-20 11:30:57,954 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 13 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 171 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 [2022-11-20 11:30:57,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:30:57,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 11:30:57,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-20 11:30:57,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:30:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2022-11-20 11:30:57,978 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 24 [2022-11-20 11:30:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:57,979 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2022-11-20 11:30:57,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-20 11:30:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2022-11-20 11:30:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 11:30:57,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:57,982 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] [2022-11-20 11:30:57,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:30:57,983 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:57,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -398467318, now seen corresponding path program 1 times [2022-11-20 11:30:57,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:57,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164719696] [2022-11-20 11:30:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:57,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:30:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:58,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164719696] [2022-11-20 11:30:58,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164719696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:58,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:58,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:30:58,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469838660] [2022-11-20 11:30:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:58,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:30:58,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:30:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:58,197 INFO L87 Difference]: Start difference. First operand 74 states and 95 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-11-20 11:30:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:58,226 INFO L93 Difference]: Finished difference Result 141 states and 184 transitions. [2022-11-20 11:30:58,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:30:58,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2022-11-20 11:30:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:58,228 INFO L225 Difference]: With dead ends: 141 [2022-11-20 11:30:58,228 INFO L226 Difference]: Without dead ends: 74 [2022-11-20 11:30:58,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:30:58,231 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 75 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:58,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:30:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-20 11:30:58,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-20 11:30:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 11:30:58,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2022-11-20 11:30:58,247 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 29 [2022-11-20 11:30:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:58,248 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2022-11-20 11:30:58,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-11-20 11:30:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2022-11-20 11:30:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 11:30:58,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:58,250 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] [2022-11-20 11:30:58,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:30:58,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:58,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1454809844, now seen corresponding path program 1 times [2022-11-20 11:30:58,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:58,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078591790] [2022-11-20 11:30:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:30:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:30:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-20 11:30:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:58,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:58,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078591790] [2022-11-20 11:30:58,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078591790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:58,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:58,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:30:58,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043612028] [2022-11-20 11:30:58,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:58,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:30:58,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:30:58,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:30:58,441 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:30:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:58,805 INFO L93 Difference]: Finished difference Result 214 states and 271 transitions. [2022-11-20 11:30:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:30:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2022-11-20 11:30:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:58,814 INFO L225 Difference]: With dead ends: 214 [2022-11-20 11:30:58,815 INFO L226 Difference]: Without dead ends: 147 [2022-11-20 11:30:58,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:30:58,818 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 167 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:58,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 272 Invalid, 152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:30:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-11-20 11:30:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2022-11-20 11:30:58,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.2568807339449541) internal successors, (137), 117 states have internal predecessors, (137), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:30:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 172 transitions. [2022-11-20 11:30:58,861 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 172 transitions. Word has length 39 [2022-11-20 11:30:58,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:58,861 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 172 transitions. [2022-11-20 11:30:58,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:30:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 172 transitions. [2022-11-20 11:30:58,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:30:58,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:58,863 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, 1, 1, 1, 1, 1] [2022-11-20 11:30:58,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:30:58,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:58,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:58,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2113308012, now seen corresponding path program 1 times [2022-11-20 11:30:58,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:58,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793005554] [2022-11-20 11:30:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:58,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:30:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:30:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-20 11:30:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:30:59,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:59,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793005554] [2022-11-20 11:30:59,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793005554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:59,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:59,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:59,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799049478] [2022-11-20 11:30:59,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:59,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:59,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:59,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:59,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:59,164 INFO L87 Difference]: Start difference. First operand 141 states and 172 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:30:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:59,460 INFO L93 Difference]: Finished difference Result 157 states and 188 transitions. [2022-11-20 11:30:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:30:59,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-20 11:30:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:59,463 INFO L225 Difference]: With dead ends: 157 [2022-11-20 11:30:59,463 INFO L226 Difference]: Without dead ends: 155 [2022-11-20 11:30:59,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:30:59,465 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 115 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:59,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 379 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:30:59,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-20 11:30:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 141. [2022-11-20 11:30:59,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.238532110091743) internal successors, (135), 117 states have internal predecessors, (135), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:30:59,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 170 transitions. [2022-11-20 11:30:59,493 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 170 transitions. Word has length 45 [2022-11-20 11:30:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:59,494 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 170 transitions. [2022-11-20 11:30:59,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 11:30:59,495 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 170 transitions. [2022-11-20 11:30:59,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:30:59,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:59,497 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:59,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:30:59,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:59,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2050569783, now seen corresponding path program 1 times [2022-11-20 11:30:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:59,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077429292] [2022-11-20 11:30:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:30:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:30:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 11:30:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:30:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:30:59,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:30:59,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077429292] [2022-11-20 11:30:59,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077429292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:30:59,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:30:59,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:30:59,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171766450] [2022-11-20 11:30:59,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:30:59,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:30:59,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:30:59,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:30:59,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:30:59,642 INFO L87 Difference]: Start difference. First operand 141 states and 170 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:30:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:30:59,845 INFO L93 Difference]: Finished difference Result 285 states and 350 transitions. [2022-11-20 11:30:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:30:59,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-20 11:30:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:30:59,850 INFO L225 Difference]: With dead ends: 285 [2022-11-20 11:30:59,851 INFO L226 Difference]: Without dead ends: 151 [2022-11-20 11:30:59,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:30:59,867 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 66 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:30:59,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 345 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:30:59,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-20 11:30:59,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 144. [2022-11-20 11:30:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 120 states have internal predecessors, (138), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:30:59,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 173 transitions. [2022-11-20 11:30:59,923 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 173 transitions. Word has length 51 [2022-11-20 11:30:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:30:59,924 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 173 transitions. [2022-11-20 11:30:59,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:30:59,925 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 173 transitions. [2022-11-20 11:30:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:30:59,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:30:59,927 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:30:59,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:30:59,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:30:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:30:59,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1988530169, now seen corresponding path program 1 times [2022-11-20 11:30:59,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:30:59,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803307965] [2022-11-20 11:30:59,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:30:59,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:30:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:31:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 11:31:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:31:00,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:00,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803307965] [2022-11-20 11:31:00,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803307965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:00,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:00,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:31:00,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384527599] [2022-11-20 11:31:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:00,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:00,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:00,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:00,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:31:00,069 INFO L87 Difference]: Start difference. First operand 144 states and 173 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:31:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:00,259 INFO L93 Difference]: Finished difference Result 294 states and 360 transitions. [2022-11-20 11:31:00,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 51 [2022-11-20 11:31:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:00,262 INFO L225 Difference]: With dead ends: 294 [2022-11-20 11:31:00,263 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 11:31:00,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:00,265 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 150 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:00,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 268 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:31:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 11:31:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 146. [2022-11-20 11:31:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 122 states have internal predecessors, (140), 15 states have call successors, (15), 13 states have call predecessors, (15), 16 states have return successors, (20), 16 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-20 11:31:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 175 transitions. [2022-11-20 11:31:00,288 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 175 transitions. Word has length 51 [2022-11-20 11:31:00,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:00,288 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 175 transitions. [2022-11-20 11:31:00,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 11:31:00,289 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2022-11-20 11:31:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:31:00,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:00,291 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:00,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:31:00,291 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:00,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1796964037, now seen corresponding path program 1 times [2022-11-20 11:31:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:00,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569493928] [2022-11-20 11:31:00,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:00,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:31:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 11:31:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:31:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:00,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569493928] [2022-11-20 11:31:00,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569493928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:00,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:00,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:31:00,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439109234] [2022-11-20 11:31:00,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:00,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:31:00,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:00,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:31:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:31:00,480 INFO L87 Difference]: Start difference. First operand 146 states and 175 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:31:00,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:00,806 INFO L93 Difference]: Finished difference Result 402 states and 507 transitions. [2022-11-20 11:31:00,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:00,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 51 [2022-11-20 11:31:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:00,814 INFO L225 Difference]: With dead ends: 402 [2022-11-20 11:31:00,814 INFO L226 Difference]: Without dead ends: 263 [2022-11-20 11:31:00,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:31:00,820 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 186 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:00,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 295 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:31:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2022-11-20 11:31:00,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2022-11-20 11:31:00,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 201 states have (on average 1.2189054726368158) internal successors, (245), 213 states have internal predecessors, (245), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (45), 30 states have call predecessors, (45), 30 states have call successors, (45) [2022-11-20 11:31:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 320 transitions. [2022-11-20 11:31:00,921 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 320 transitions. Word has length 51 [2022-11-20 11:31:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:00,922 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 320 transitions. [2022-11-20 11:31:00,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 11:31:00,923 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 320 transitions. [2022-11-20 11:31:00,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-20 11:31:00,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:00,931 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:00,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:31:00,931 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:00,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash 885279839, now seen corresponding path program 1 times [2022-11-20 11:31:00,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:00,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214453223] [2022-11-20 11:31:00,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:00,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:31:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 11:31:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:31:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:01,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214453223] [2022-11-20 11:31:01,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214453223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:01,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:31:01,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:31:01,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577492826] [2022-11-20 11:31:01,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:01,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:31:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:01,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:31:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:31:01,318 INFO L87 Difference]: Start difference. First operand 261 states and 320 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:31:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:02,161 INFO L93 Difference]: Finished difference Result 817 states and 1039 transitions. [2022-11-20 11:31:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 11:31:02,162 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2022-11-20 11:31:02,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:02,170 INFO L225 Difference]: With dead ends: 817 [2022-11-20 11:31:02,170 INFO L226 Difference]: Without dead ends: 563 [2022-11-20 11:31:02,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2022-11-20 11:31:02,206 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 368 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:02,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 524 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:31:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-11-20 11:31:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 538. [2022-11-20 11:31:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 412 states have (on average 1.191747572815534) internal successors, (491), 440 states have internal predecessors, (491), 64 states have call successors, (64), 54 states have call predecessors, (64), 61 states have return successors, (103), 63 states have call predecessors, (103), 64 states have call successors, (103) [2022-11-20 11:31:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 658 transitions. [2022-11-20 11:31:02,298 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 658 transitions. Word has length 55 [2022-11-20 11:31:02,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:02,299 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 658 transitions. [2022-11-20 11:31:02,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 11:31:02,300 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 658 transitions. [2022-11-20 11:31:02,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 11:31:02,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:02,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:02,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:31:02,304 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:02,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:02,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1520465863, now seen corresponding path program 1 times [2022-11-20 11:31:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:02,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045229706] [2022-11-20 11:31:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-20 11:31:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 11:31:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:31:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:31:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-20 11:31:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-20 11:31:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-20 11:31:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-20 11:31:02,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:02,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045229706] [2022-11-20 11:31:02,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045229706] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126412975] [2022-11-20 11:31:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:02,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:02,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:02,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:31:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:02,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:31:02,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-20 11:31:03,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:03,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126412975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:03,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:31:03,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2022-11-20 11:31:03,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713487097] [2022-11-20 11:31:03,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:03,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:31:03,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:03,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:31:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:31:03,304 INFO L87 Difference]: Start difference. First operand 538 states and 658 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:31:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:03,516 INFO L93 Difference]: Finished difference Result 1071 states and 1312 transitions. [2022-11-20 11:31:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:03,517 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 102 [2022-11-20 11:31:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:03,520 INFO L225 Difference]: With dead ends: 1071 [2022-11-20 11:31:03,521 INFO L226 Difference]: Without dead ends: 540 [2022-11-20 11:31:03,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:31:03,524 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 66 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:03,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 658 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:31:03,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-20 11:31:03,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2022-11-20 11:31:03,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 412 states have (on average 1.1771844660194175) internal successors, (485), 440 states have internal predecessors, (485), 64 states have call successors, (64), 54 states have call predecessors, (64), 61 states have return successors, (92), 63 states have call predecessors, (92), 64 states have call successors, (92) [2022-11-20 11:31:03,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 641 transitions. [2022-11-20 11:31:03,598 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 641 transitions. Word has length 102 [2022-11-20 11:31:03,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:03,599 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 641 transitions. [2022-11-20 11:31:03,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:31:03,600 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 641 transitions. [2022-11-20 11:31:03,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 11:31:03,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:03,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:03,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:03,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:03,821 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:03,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1135855989, now seen corresponding path program 1 times [2022-11-20 11:31:03,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:03,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155564060] [2022-11-20 11:31:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:03,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:31:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:31:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:31:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 11:31:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:31:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:31:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 11:31:04,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155564060] [2022-11-20 11:31:04,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155564060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121186534] [2022-11-20 11:31:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:04,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:04,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:04,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:04,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:31:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:04,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 11:31:04,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:04,578 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:31:04,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:04,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121186534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:04,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:31:04,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2022-11-20 11:31:04,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140045310] [2022-11-20 11:31:04,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:04,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:31:04,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:04,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:31:04,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:31:04,582 INFO L87 Difference]: Start difference. First operand 538 states and 641 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:31:04,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:04,877 INFO L93 Difference]: Finished difference Result 1345 states and 1670 transitions. [2022-11-20 11:31:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:31:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 98 [2022-11-20 11:31:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:04,885 INFO L225 Difference]: With dead ends: 1345 [2022-11-20 11:31:04,885 INFO L226 Difference]: Without dead ends: 910 [2022-11-20 11:31:04,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 111 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:31:04,889 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 167 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:04,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 630 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:31:04,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-11-20 11:31:05,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 752. [2022-11-20 11:31:05,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 574 states have (on average 1.1794425087108014) internal successors, (677), 612 states have internal predecessors, (677), 90 states have call successors, (90), 78 states have call predecessors, (90), 87 states have return successors, (135), 85 states have call predecessors, (135), 90 states have call successors, (135) [2022-11-20 11:31:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 902 transitions. [2022-11-20 11:31:05,022 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 902 transitions. Word has length 98 [2022-11-20 11:31:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:05,027 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 902 transitions. [2022-11-20 11:31:05,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-20 11:31:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 902 transitions. [2022-11-20 11:31:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 11:31:05,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:31:05,039 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:05,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:05,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 11:31:05,246 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:31:05,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:31:05,249 INFO L85 PathProgramCache]: Analyzing trace with hash -669582345, now seen corresponding path program 1 times [2022-11-20 11:31:05,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:31:05,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127374574] [2022-11-20 11:31:05,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:05,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:31:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 11:31:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 11:31:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 11:31:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 11:31:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 11:31:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-20 11:31:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-20 11:31:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:31:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-20 11:31:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,530 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:31:05,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:31:05,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127374574] [2022-11-20 11:31:05,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127374574] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:31:05,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947782096] [2022-11-20 11:31:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:31:05,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:31:05,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:31:05,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:31:05,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:31:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:31:05,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:31:05,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:31:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 11:31:05,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:31:05,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947782096] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:31:05,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:31:05,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-11-20 11:31:05,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941970736] [2022-11-20 11:31:05,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:31:05,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:31:05,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:31:05,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:31:05,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:31:05,763 INFO L87 Difference]: Start difference. First operand 752 states and 902 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:31:05,870 INFO L93 Difference]: Finished difference Result 1039 states and 1244 transitions. [2022-11-20 11:31:05,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:31:05,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2022-11-20 11:31:05,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:31:05,872 INFO L225 Difference]: With dead ends: 1039 [2022-11-20 11:31:05,872 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:31:05,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:31:05,876 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 36 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:31:05,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 335 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:31:05,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:31:05,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:31:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:31:05,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:31:05,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2022-11-20 11:31:05,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:31:05,878 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:31:05,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:31:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:31:05,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:31:05,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:31:05,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:31:06,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 11:31:06,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:31:11,745 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 304 310) no Hoare annotation was computed. [2022-11-20 11:31:11,746 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 304 310) the Hoare annotation is: true [2022-11-20 11:31:11,746 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2022-11-20 11:31:11,747 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 93 104) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))) (or (<= 1 ~methaneLevelCritical~0) .cse3 .cse2 (not (<= 1 ~waterLevel~0)) (not (<= 1 |old(~methaneLevelCritical~0)|))) (or (not (= ~waterLevel~0 1)) .cse0 .cse3 .cse1 .cse2))) [2022-11-20 11:31:11,747 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2022-11-20 11:31:11,747 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2022-11-20 11:31:11,747 INFO L899 garLoopResultBuilder]: For program point L481-2(lines 481 485) no Hoare annotation was computed. [2022-11-20 11:31:11,748 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0))) (let ((.cse3 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse6 (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) .cse3 .cse4) (or .cse7 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse6 (= ~waterLevel~0 1))) (or .cse7 (and .cse6 .cse2) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse5) (or .cse7 .cse0 .cse1 .cse2 .cse4)))) [2022-11-20 11:31:11,748 INFO L899 garLoopResultBuilder]: For program point L506-1(line 506) no Hoare annotation was computed. [2022-11-20 11:31:11,749 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2022-11-20 11:31:11,749 INFO L895 garLoopResultBuilder]: At program point L73-2(lines 69 80) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse1) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse6 .cse2 .cse3))) [2022-11-20 11:31:11,749 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 280 303) no Hoare annotation was computed. [2022-11-20 11:31:11,749 INFO L899 garLoopResultBuilder]: For program point L284-1(lines 283 302) no Hoare annotation was computed. [2022-11-20 11:31:11,750 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 354) no Hoare annotation was computed. [2022-11-20 11:31:11,750 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 359) no Hoare annotation was computed. [2022-11-20 11:31:11,750 INFO L895 garLoopResultBuilder]: At program point L487(lines 472 490) the Hoare annotation is: (let ((.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse1 .cse5 .cse6) (or .cse4 .cse1 .cse3 .cse6) (or .cse0 .cse1 .cse2 .cse5))) [2022-11-20 11:31:11,751 INFO L895 garLoopResultBuilder]: At program point L165(lines 160 168) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse5 .cse6))) [2022-11-20 11:31:11,751 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2022-11-20 11:31:11,751 INFO L895 garLoopResultBuilder]: At program point L413(lines 408 416) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 (and .cse5 .cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse5 (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) .cse6 (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0)) .cse7) (or .cse1 .cse3 .cse7))) [2022-11-20 11:31:11,751 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2022-11-20 11:31:11,752 INFO L895 garLoopResultBuilder]: At program point L508-1(lines 500 524) the Hoare annotation is: (let ((.cse9 (= 1 ~systemActive~0)) (.cse10 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~6#1| 0)) (.cse18 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (<= 1 |timeShift_processEnvironment_~tmp~2#1|)) (.cse3 (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1))) (.cse4 (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0)) (.cse5 (<= 0 |timeShift_isLowWaterSensorDry_#res#1|)) (.cse6 (<= |timeShift_isLowWaterSensorDry_#res#1| 0)) (.cse7 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|)) (.cse8 (<= 1 |timeShift_isLowWaterLevel_#res#1|)) (.cse11 (<= 1 ~waterLevel~0)) (.cse15 (not (<= 2 |old(~waterLevel~0)|))) (.cse13 (not (= ~methaneLevelCritical~0 0))) (.cse14 (and (<= 2 ~waterLevel~0) .cse9 .cse10 .cse18)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse12 (not .cse9)) (.cse16 (not (<= 1 ~methaneLevelCritical~0))) (.cse17 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= ~pumpRunning~0 0))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) .cse12 .cse13 .cse14 .cse15) (or .cse12 (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11) .cse16 (and .cse17 .cse2 .cse18) .cse15) (or .cse1 .cse12 (and .cse17 .cse2 .cse10 .cse18) (not (<= 1 |old(~waterLevel~0)|)) .cse13 .cse14) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse12 .cse16 (and .cse17 .cse2 (= ~waterLevel~0 1)))))) [2022-11-20 11:31:11,752 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-20 11:31:11,753 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse5))) [2022-11-20 11:31:11,753 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse5))) [2022-11-20 11:31:11,753 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 280 303) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse5 (= ~waterLevel~0 1))) (or .cse4 (and .cse5 .cse6) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse7) (or .cse0 .cse7 .cse2 .cse3)))) [2022-11-20 11:31:11,754 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 280 303) no Hoare annotation was computed. [2022-11-20 11:31:11,754 INFO L895 garLoopResultBuilder]: At program point L394(lines 389 396) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= ~pumpRunning~0 0) (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6) (or .cse1 .cse6 .cse4 .cse5))) [2022-11-20 11:31:11,754 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-20 11:31:11,755 INFO L895 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse3 (= ~waterLevel~0 1))) (or .cse0 .cse7 (and .cse2 .cse3) .cse5) (or .cse6 (and .cse3 .cse4) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse7))) [2022-11-20 11:31:11,755 INFO L895 garLoopResultBuilder]: At program point L357-1(lines 338 362) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0))) (let ((.cse3 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) .cse6 (< 0 (+ |timeShift_isLowWaterLevel_~tmp~5#1| 1)) (<= |timeShift_isLowWaterLevel_~tmp~5#1| 0) (<= 0 |timeShift_isLowWaterSensorDry_#res#1|) (<= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse6) .cse3 .cse4) (or .cse7 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse6 (= ~waterLevel~0 1))) (or .cse7 (and .cse6 .cse2) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse5) (or .cse7 .cse0 .cse1 .cse2 .cse4)))) [2022-11-20 11:31:11,755 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2022-11-20 11:31:11,756 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-11-20 11:31:11,756 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2022-11-20 11:31:11,756 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2022-11-20 11:31:11,756 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2022-11-20 11:31:11,756 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2022-11-20 11:31:11,756 INFO L899 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2022-11-20 11:31:11,757 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2022-11-20 11:31:11,757 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2022-11-20 11:31:11,757 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2022-11-20 11:31:11,757 INFO L902 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2022-11-20 11:31:11,757 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 105 113) the Hoare annotation is: true [2022-11-20 11:31:11,758 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 105 113) no Hoare annotation was computed. [2022-11-20 11:31:11,758 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 105 113) no Hoare annotation was computed. [2022-11-20 11:31:11,758 INFO L899 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2022-11-20 11:31:11,758 INFO L902 garLoopResultBuilder]: At program point L242(lines 235 244) the Hoare annotation is: true [2022-11-20 11:31:11,758 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2022-11-20 11:31:11,759 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 562) no Hoare annotation was computed. [2022-11-20 11:31:11,759 INFO L902 garLoopResultBuilder]: At program point L267(lines 248 270) the Hoare annotation is: true [2022-11-20 11:31:11,759 INFO L895 garLoopResultBuilder]: At program point L581(lines 536 583) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2022-11-20 11:31:11,759 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2022-11-20 11:31:11,760 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:31:11,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:31:11,760 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:31:11,760 INFO L895 garLoopResultBuilder]: At program point L623(lines 618 626) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:31:11,760 INFO L895 garLoopResultBuilder]: At program point L615(lines 611 617) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:31:11,761 INFO L895 garLoopResultBuilder]: At program point L231(lines 227 233) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:31:11,761 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:31:11,761 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2022-11-20 11:31:11,761 INFO L895 garLoopResultBuilder]: At program point L574-2(lines 566 579) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse6) (and .cse4 .cse0 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3))) [2022-11-20 11:31:11,762 INFO L899 garLoopResultBuilder]: For program point L537(lines 536 583) no Hoare annotation was computed. [2022-11-20 11:31:11,762 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2022-11-20 11:31:11,762 INFO L895 garLoopResultBuilder]: At program point L496(lines 491 498) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse6) (and .cse4 .cse0 .cse2 .cse3 .cse6) (and .cse5 .cse1 .cse2 .cse3))) [2022-11-20 11:31:11,762 INFO L895 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse2 .cse3 .cse4) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2022-11-20 11:31:11,763 INFO L902 garLoopResultBuilder]: At program point L587(lines 526 591) the Hoare annotation is: true [2022-11-20 11:31:11,763 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2022-11-20 11:31:11,763 INFO L899 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2022-11-20 11:31:11,763 INFO L895 garLoopResultBuilder]: At program point L608(lines 604 610) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-20 11:31:11,763 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2022-11-20 11:31:11,764 INFO L895 garLoopResultBuilder]: At program point L584(lines 535 585) the Hoare annotation is: false [2022-11-20 11:31:11,764 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2022-11-20 11:31:11,764 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 312 336) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 .cse3 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-20 11:31:11,764 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2022-11-20 11:31:11,764 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 333) no Hoare annotation was computed. [2022-11-20 11:31:11,765 INFO L895 garLoopResultBuilder]: At program point L155(lines 146 159) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4) (not (<= 1 ~methaneLevelCritical~0)) (and .cse3 (<= 2 ~waterLevel~0))) (or .cse0 .cse3 .cse1 .cse2 .cse5) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse4 .cse5))) [2022-11-20 11:31:11,765 INFO L895 garLoopResultBuilder]: At program point L368(lines 363 370) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2022-11-20 11:31:11,765 INFO L895 garLoopResultBuilder]: At program point L331(line 331) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0))))) [2022-11-20 11:31:11,766 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 312 336) no Hoare annotation was computed. [2022-11-20 11:31:11,766 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 312 336) no Hoare annotation was computed. [2022-11-20 11:31:11,766 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 385) no Hoare annotation was computed. [2022-11-20 11:31:11,766 INFO L895 garLoopResultBuilder]: At program point L379-2(lines 372 388) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (<= 1 ~methaneLevelCritical~0)) (and (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~3#1|) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0))))) [2022-11-20 11:31:11,766 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2022-11-20 11:31:11,767 INFO L895 garLoopResultBuilder]: At program point L468(lines 453 471) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse6)) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0))) (.cse4 (and .cse5 (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3 .cse4)))) [2022-11-20 11:31:11,767 INFO L895 garLoopResultBuilder]: At program point L404(lines 397 407) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (= ~pumpRunning~0 0))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (= ~methaneLevelCritical~0 0)) (and .cse3 .cse4)) (or .cse0 .cse1 (not .cse4) .cse2 (and .cse3 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0))))) [2022-11-20 11:31:11,768 INFO L895 garLoopResultBuilder]: At program point L402(line 402) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~waterLevel~0))) (.cse3 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3))) [2022-11-20 11:31:11,768 INFO L899 garLoopResultBuilder]: For program point L402-1(line 402) no Hoare annotation was computed. [2022-11-20 11:31:11,768 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2022-11-20 11:31:11,768 INFO L899 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2022-11-20 11:31:11,768 INFO L895 garLoopResultBuilder]: At program point L326(line 326) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0))) (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse4))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) .cse3) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (<= 1 ~waterLevel~0)) (not (= ~methaneLevelCritical~0 0)))))) [2022-11-20 11:31:11,769 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2022-11-20 11:31:11,769 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2022-11-20 11:31:11,769 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 81 92) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse1 (= ~waterLevel~0 1)) (or .cse3 .cse0 (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2022-11-20 11:31:11,773 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:31:11,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:31:11,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:31:11 BoogieIcfgContainer [2022-11-20 11:31:11,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:31:11,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:31:11,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:31:11,816 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:31:11,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:30:57" (3/4) ... [2022-11-20 11:31:11,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:31:11,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 11:31:11,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 11:31:11,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 11:31:11,830 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 11:31:11,830 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 11:31:11,830 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 11:31:11,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 11:31:11,838 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 11:31:11,838 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 11:31:11,839 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:31:11,839 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:31:11,840 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:31:11,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,872 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,873 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 == systemActive) && tmp == 0) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(1 == systemActive) || ((((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 == systemActive) && 1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel == 1)) [2022-11-20 11:31:11,873 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && \result == methaneLevelCritical)) [2022-11-20 11:31:11,874 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && \result == 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,874 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && 0 <= \result) && \result <= 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && 0 <= \result) && \result <= 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,874 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((methaneLevelCritical == tmp && pumpRunning == 0) && 2 <= waterLevel) && \result == methaneLevelCritical)) [2022-11-20 11:31:11,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(methaneLevelCritical == 0)) [2022-11-20 11:31:11,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-20 11:31:11,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((((((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) [2022-11-20 11:31:11,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) [2022-11-20 11:31:11,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 11:31:11,905 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:31:11,905 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:31:11,906 INFO L158 Benchmark]: Toolchain (without parser) took 16257.10ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 113.4MB in the beginning and 127.7MB in the end (delta: -14.4MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,906 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:11,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.37ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 94.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,907 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.13ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,908 INFO L158 Benchmark]: Boogie Preprocessor took 40.88ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 90.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:31:11,908 INFO L158 Benchmark]: RCFGBuilder took 725.75ms. Allocated memory is still 155.2MB. Free memory was 90.5MB in the beginning and 73.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,909 INFO L158 Benchmark]: TraceAbstraction took 14735.05ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 72.9MB in the beginning and 133.0MB in the end (delta: -60.1MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,909 INFO L158 Benchmark]: Witness Printer took 89.48ms. Allocated memory is still 234.9MB. Free memory was 133.0MB in the beginning and 127.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:31:11,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.37ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 94.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.13ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.88ms. Allocated memory is still 155.2MB. Free memory was 91.8MB in the beginning and 90.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 725.75ms. Allocated memory is still 155.2MB. Free memory was 90.5MB in the beginning and 73.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14735.05ms. Allocated memory was 155.2MB in the beginning and 234.9MB in the end (delta: 79.7MB). Free memory was 72.9MB in the beginning and 133.0MB in the end (delta: -60.1MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * Witness Printer took 89.48ms. Allocated memory is still 234.9MB. Free memory was 133.0MB in the beginning and 127.7MB in the end (delta: 5.2MB). 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 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1441 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1409 mSDsluCounter, 4086 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2796 mSDsCounter, 324 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1323 IncrementalHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 324 mSolverCounterUnsat, 1290 mSDtfsCounter, 1323 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 516 GetRequests, 400 SyntacticMatches, 5 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=752occurred in iteration=11, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 225 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 1422 PreInvPairs, 1572 NumberOfFragments, 2300 HoareAnnotationTreeSize, 1422 FomulaSimplifications, 195 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 43 FomulaSimplificationsInter, 6159 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 964 NumberOfCodeBlocks, 964 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 949 ConstructedInterpolants, 0 QuantifiedInterpolants, 1729 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1031 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 184/206 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 604]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((methaneLevelCritical == tmp && pumpRunning == 0) && 2 <= waterLevel) && \result == methaneLevelCritical)) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 1 == systemActive) && !(tmp == 0)) && \result == 0) && tmp___0 == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((((((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && ((((((((((pumpRunning == \old(pumpRunning) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (((pumpRunning == \old(pumpRunning) && 0 <= \result) && \result <= 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && 0 <= \result) && \result <= 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((1 <= methaneLevelCritical && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) || ((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || (((methaneLevelCritical == 0 && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && 2 <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && \result == methaneLevelCritical)) - InvariantResult [Line: 500]: Loop Invariant Derived loop invariant: (((((((((((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 == systemActive) && tmp == 0) && 1 <= waterLevel) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(1 == systemActive) || ((((((((((1 <= tmp && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 == systemActive) && 1 <= waterLevel)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) || (((2 <= waterLevel && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel == 1)) - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && ((((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || (((((((((1 <= tmp && pumpRunning == 0) && 0 < tmp + 1) && tmp <= 0) && \result == 0) && 0 <= \result) && \result <= 0) && 1 <= tmp___0) && 1 <= \result) && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= methaneLevelCritical))) && ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(1 <= methaneLevelCritical)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || ((((pumpRunning == 0 && 1 <= methaneLevelCritical) && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel)) || (((methaneLevelCritical == 0 && 2 <= waterLevel) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || !(1 <= methaneLevelCritical)) || (pumpRunning == 0 && 2 <= waterLevel)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(methaneLevelCritical == 0))) && ((((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\result == 0)) || !(methaneLevelCritical == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-20 11:31:11,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8870babd-9c56-425b-ab18-cf8d54e8444c/bin/uautomizer-ug76WZFUDN/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 Result: TRUE