./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:17:47,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:17:47,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:17:47,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:17:47,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:17:47,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:17:47,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:17:47,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:17:47,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:17:47,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:17:47,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:17:47,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:17:47,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:17:47,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:17:47,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:17:47,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:17:47,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:17:47,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:17:47,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:17:47,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:17:47,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:17:47,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:17:47,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:17:47,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:17:47,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:17:47,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:17:47,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:17:47,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:17:47,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:17:47,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:17:47,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:17:47,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:17:47,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:17:47,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:17:47,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:17:47,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:17:47,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:17:47,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:17:47,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:17:47,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:17:47,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:17:47,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:17:47,315 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:17:47,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:17:47,316 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:17:47,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:17:47,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:17:47,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:17:47,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:17:47,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:17:47,319 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:17:47,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:17:47,321 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:17:47,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:17:47,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:17:47,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:17:47,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:17:47,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:17:47,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:17:47,322 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:17:47,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:17:47,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:17:47,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:17:47,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:17:47,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:17:47,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:17:47,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:17:47,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:17:47,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:17:47,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:17:47,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:17:47,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:17:47,327 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:17:47,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:17:47,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:17:47,328 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_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2022-11-18 20:17:47,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:17:47,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:17:47,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:17:47,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:17:47,648 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:17:47,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-11-18 20:17:47,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/data/b4a721552/bdffc18e0fc84c33b0b04321eaed5a71/FLAG711ede39c [2022-11-18 20:17:48,205 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:17:48,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-11-18 20:17:48,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/data/b4a721552/bdffc18e0fc84c33b0b04321eaed5a71/FLAG711ede39c [2022-11-18 20:17:48,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/data/b4a721552/bdffc18e0fc84c33b0b04321eaed5a71 [2022-11-18 20:17:48,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:17:48,539 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:17:48,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:48,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:17:48,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:17:48,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:48" (1/1) ... [2022-11-18 20:17:48,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c4a8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:48, skipping insertion in model container [2022-11-18 20:17:48,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:17:48" (1/1) ... [2022-11-18 20:17:48,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:17:48,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:17:48,908 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-11-18 20:17:48,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:48,971 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:17:49,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-11-18 20:17:49,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:17:49,088 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:17:49,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49 WrapperNode [2022-11-18 20:17:49,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:17:49,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:49,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:17:49,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:17:49,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,162 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 204 [2022-11-18 20:17:49,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:17:49,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:17:49,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:17:49,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:17:49,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,228 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:17:49,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:17:49,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:17:49,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:17:49,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (1/1) ... [2022-11-18 20:17:49,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:17:49,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:49,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:17:49,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:17:49,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:17:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 20:17:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 20:17:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 20:17:49,357 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 20:17:49,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 20:17:49,358 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 20:17:49,359 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:17:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:17:49,360 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 20:17:49,360 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 20:17:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:17:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 20:17:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 20:17:49,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:17:49,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:17:49,441 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:17:49,443 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:17:49,785 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:17:49,793 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:17:49,793 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:17:49,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:49 BoogieIcfgContainer [2022-11-18 20:17:49,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:17:49,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:17:49,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:17:49,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:17:49,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:17:48" (1/3) ... [2022-11-18 20:17:49,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116e233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:17:49, skipping insertion in model container [2022-11-18 20:17:49,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:17:49" (2/3) ... [2022-11-18 20:17:49,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116e233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:17:49, skipping insertion in model container [2022-11-18 20:17:49,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:49" (3/3) ... [2022-11-18 20:17:49,809 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2022-11-18 20:17:49,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:17:49,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:17:49,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:17:49,894 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;@3eb13a7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:17:49,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:17:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 20:17:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:17:49,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:49,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:49,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:49,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash -340967460, now seen corresponding path program 1 times [2022-11-18 20:17:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:49,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392686744] [2022-11-18 20:17:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:49,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:50,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:50,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392686744] [2022-11-18 20:17:50,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392686744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:50,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:17:50,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903690169] [2022-11-18 20:17:50,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:50,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:17:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:50,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:17:50,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:17:50,180 INFO L87 Difference]: Start difference. First operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:50,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:50,256 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-11-18 20:17:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:17:50,259 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 20:17:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:50,284 INFO L225 Difference]: With dead ends: 158 [2022-11-18 20:17:50,284 INFO L226 Difference]: Without dead ends: 74 [2022-11-18 20:17:50,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:17:50,291 INFO L413 NwaCegarLoop]: 105 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, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:50,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:17:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-18 20:17:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-18 20:17:50,366 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), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 20:17:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2022-11-18 20:17:50,375 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 19 [2022-11-18 20:17:50,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:50,376 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2022-11-18 20:17:50,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-11-18 20:17:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:17:50,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:50,378 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] [2022-11-18 20:17:50,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:17:50,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1018100204, now seen corresponding path program 1 times [2022-11-18 20:17:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:50,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912391721] [2022-11-18 20:17:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:50,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:50,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:50,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912391721] [2022-11-18 20:17:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912391721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:50,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:17:50,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255575995] [2022-11-18 20:17:50,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:50,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:17:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:17:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:17:50,594 INFO L87 Difference]: Start difference. First operand 74 states and 96 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:50,612 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2022-11-18 20:17:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:17:50,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-18 20:17:50,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:50,614 INFO L225 Difference]: With dead ends: 113 [2022-11-18 20:17:50,614 INFO L226 Difference]: Without dead ends: 65 [2022-11-18 20:17:50,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:17:50,616 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:50,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:17:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-18 20:17:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-18 20:17:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 59 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 20:17:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-18 20:17:50,626 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 20 [2022-11-18 20:17:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:50,627 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-18 20:17:50,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:50,627 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-18 20:17:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 20:17:50,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:50,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:50,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:17:50,629 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:50,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2024480710, now seen corresponding path program 1 times [2022-11-18 20:17:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:50,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410129634] [2022-11-18 20:17:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:50,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410129634] [2022-11-18 20:17:50,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410129634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:50,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:50,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:17:50,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810044739] [2022-11-18 20:17:50,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:50,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:17:50,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:50,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:17:50,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:17:50,840 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:50,994 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2022-11-18 20:17:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:17:50,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 20:17:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:50,996 INFO L225 Difference]: With dead ends: 123 [2022-11-18 20:17:50,996 INFO L226 Difference]: Without dead ends: 65 [2022-11-18 20:17:50,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:17:50,999 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 109 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:51,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 175 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:51,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-18 20:17:51,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-18 20:17:51,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 59 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 20:17:51,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2022-11-18 20:17:51,023 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 25 [2022-11-18 20:17:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:51,023 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2022-11-18 20:17:51,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:17:51,024 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2022-11-18 20:17:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:17:51,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:51,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:51,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:17:51,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:51,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:51,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1530438702, now seen corresponding path program 1 times [2022-11-18 20:17:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:51,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513310948] [2022-11-18 20:17:51,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:51,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:51,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:51,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513310948] [2022-11-18 20:17:51,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513310948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:51,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:51,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:17:51,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122449534] [2022-11-18 20:17:51,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:51,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:17:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:51,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:17:51,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:17:51,228 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:17:51,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:51,407 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2022-11-18 20:17:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:17:51,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-11-18 20:17:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:51,413 INFO L225 Difference]: With dead ends: 186 [2022-11-18 20:17:51,414 INFO L226 Difference]: Without dead ends: 128 [2022-11-18 20:17:51,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:17:51,424 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 149 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:51,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 261 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-18 20:17:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2022-11-18 20:17:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 105 states have internal predecessors, (125), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-18 20:17:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-18 20:17:51,459 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 35 [2022-11-18 20:17:51,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:51,459 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-18 20:17:51,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:17:51,460 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-18 20:17:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 20:17:51,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:51,462 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] [2022-11-18 20:17:51,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:17:51,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:51,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:51,465 INFO L85 PathProgramCache]: Analyzing trace with hash 699766483, now seen corresponding path program 1 times [2022-11-18 20:17:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:51,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077131802] [2022-11-18 20:17:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:51,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:51,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077131802] [2022-11-18 20:17:51,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077131802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:51,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:51,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:17:51,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814559523] [2022-11-18 20:17:51,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:51,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:17:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:51,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:17:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:17:51,643 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:51,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:51,951 INFO L93 Difference]: Finished difference Result 346 states and 449 transitions. [2022-11-18 20:17:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:17:51,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 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 39 [2022-11-18 20:17:51,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:51,956 INFO L225 Difference]: With dead ends: 346 [2022-11-18 20:17:51,957 INFO L226 Difference]: Without dead ends: 231 [2022-11-18 20:17:51,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:17:51,959 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 145 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:51,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:17:51,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-18 20:17:51,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2022-11-18 20:17:51,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 168 states have internal predecessors, (203), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-11-18 20:17:51,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 249 transitions. [2022-11-18 20:17:52,000 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 249 transitions. Word has length 39 [2022-11-18 20:17:52,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:52,000 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 249 transitions. [2022-11-18 20:17:52,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 249 transitions. [2022-11-18 20:17:52,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 20:17:52,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:52,002 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] [2022-11-18 20:17:52,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:17:52,003 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:52,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:52,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1720834837, now seen corresponding path program 1 times [2022-11-18 20:17:52,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:52,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013074994] [2022-11-18 20:17:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:52,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:52,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013074994] [2022-11-18 20:17:52,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013074994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:52,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:52,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:17:52,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088764825] [2022-11-18 20:17:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:52,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:17:52,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:52,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:17:52,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:17:52,091 INFO L87 Difference]: Start difference. First operand 198 states and 249 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:52,247 INFO L93 Difference]: Finished difference Result 403 states and 514 transitions. [2022-11-18 20:17:52,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:17:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 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 39 [2022-11-18 20:17:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:52,255 INFO L225 Difference]: With dead ends: 403 [2022-11-18 20:17:52,255 INFO L226 Difference]: Without dead ends: 212 [2022-11-18 20:17:52,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:17:52,260 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 59 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:52,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 331 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-18 20:17:52,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2022-11-18 20:17:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 174 states have internal predecessors, (209), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-11-18 20:17:52,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 255 transitions. [2022-11-18 20:17:52,329 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 255 transitions. Word has length 39 [2022-11-18 20:17:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:52,331 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 255 transitions. [2022-11-18 20:17:52,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:52,332 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 255 transitions. [2022-11-18 20:17:52,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 20:17:52,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:52,343 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] [2022-11-18 20:17:52,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:17:52,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:52,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash 709717587, now seen corresponding path program 1 times [2022-11-18 20:17:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:52,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624250735] [2022-11-18 20:17:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:52,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:52,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:52,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624250735] [2022-11-18 20:17:52,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624250735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:52,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:52,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:17:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560978611] [2022-11-18 20:17:52,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:52,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:17:52,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:52,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:17:52,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:17:52,430 INFO L87 Difference]: Start difference. First operand 204 states and 255 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:52,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:52,549 INFO L93 Difference]: Finished difference Result 372 states and 470 transitions. [2022-11-18 20:17:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:17:52,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 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 39 [2022-11-18 20:17:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:52,553 INFO L225 Difference]: With dead ends: 372 [2022-11-18 20:17:52,553 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 20:17:52,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:17:52,556 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 60 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:52,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 217 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 20:17:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-11-18 20:17:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.2408759124087592) internal successors, (170), 145 states have internal predecessors, (170), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-18 20:17:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 205 transitions. [2022-11-18 20:17:52,587 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 205 transitions. Word has length 39 [2022-11-18 20:17:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:52,589 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 205 transitions. [2022-11-18 20:17:52,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:17:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 205 transitions. [2022-11-18 20:17:52,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 20:17:52,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:52,593 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] [2022-11-18 20:17:52,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:17:52,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:52,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:52,594 INFO L85 PathProgramCache]: Analyzing trace with hash 11284582, now seen corresponding path program 1 times [2022-11-18 20:17:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:52,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288559535] [2022-11-18 20:17:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:17:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:52,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:52,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288559535] [2022-11-18 20:17:52,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288559535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:52,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:52,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:17:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422141817] [2022-11-18 20:17:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:52,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:17:52,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:17:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:17:52,775 INFO L87 Difference]: Start difference. First operand 170 states and 205 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:17:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:52,981 INFO L93 Difference]: Finished difference Result 333 states and 402 transitions. [2022-11-18 20:17:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:17:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-11-18 20:17:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:52,987 INFO L225 Difference]: With dead ends: 333 [2022-11-18 20:17:52,987 INFO L226 Difference]: Without dead ends: 170 [2022-11-18 20:17:52,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:17:52,990 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 99 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:52,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 308 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-18 20:17:53,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2022-11-18 20:17:53,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 143 states have internal predecessors, (166), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-18 20:17:53,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 201 transitions. [2022-11-18 20:17:53,017 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 201 transitions. Word has length 41 [2022-11-18 20:17:53,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:53,019 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 201 transitions. [2022-11-18 20:17:53,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 20:17:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 201 transitions. [2022-11-18 20:17:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 20:17:53,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:53,021 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] [2022-11-18 20:17:53,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:17:53,021 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:53,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1672553323, now seen corresponding path program 1 times [2022-11-18 20:17:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:53,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277237233] [2022-11-18 20:17:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:17:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:17:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:53,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:53,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277237233] [2022-11-18 20:17:53,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277237233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:53,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:53,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:17:53,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863103462] [2022-11-18 20:17:53,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:53,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:17:53,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:53,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:17:53,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:17:53,166 INFO L87 Difference]: Start difference. First operand 168 states and 201 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:17:53,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:53,507 INFO L93 Difference]: Finished difference Result 379 states and 482 transitions. [2022-11-18 20:17:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:17:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-18 20:17:53,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:53,510 INFO L225 Difference]: With dead ends: 379 [2022-11-18 20:17:53,510 INFO L226 Difference]: Without dead ends: 259 [2022-11-18 20:17:53,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:17:53,512 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 167 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:53,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 415 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:17:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-18 20:17:53,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 253. [2022-11-18 20:17:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2277227722772277) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-18 20:17:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2022-11-18 20:17:53,537 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 43 [2022-11-18 20:17:53,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:53,537 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2022-11-18 20:17:53,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 20:17:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2022-11-18 20:17:53,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 20:17:53,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:53,538 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] [2022-11-18 20:17:53,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:17:53,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:53,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:53,540 INFO L85 PathProgramCache]: Analyzing trace with hash -422364352, now seen corresponding path program 1 times [2022-11-18 20:17:53,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:53,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937649021] [2022-11-18 20:17:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:53,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:17:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 20:17:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 20:17:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:53,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:53,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937649021] [2022-11-18 20:17:53,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937649021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:53,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:53,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:17:53,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455661848] [2022-11-18 20:17:53,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:53,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:17:53,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:17:53,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:17:53,652 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:17:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:53,981 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2022-11-18 20:17:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:17:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 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 [2022-11-18 20:17:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:53,986 INFO L225 Difference]: With dead ends: 272 [2022-11-18 20:17:53,986 INFO L226 Difference]: Without dead ends: 270 [2022-11-18 20:17:53,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:17:53,987 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 177 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:53,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 359 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:17:53,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-18 20:17:54,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-11-18 20:17:54,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2128712871287128) internal successors, (245), 215 states have internal predecessors, (245), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-18 20:17:54,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 310 transitions. [2022-11-18 20:17:54,020 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 310 transitions. Word has length 45 [2022-11-18 20:17:54,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:54,021 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 310 transitions. [2022-11-18 20:17:54,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 20:17:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 310 transitions. [2022-11-18 20:17:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 20:17:54,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:54,024 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:17:54,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:17:54,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:54,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1050725005, now seen corresponding path program 1 times [2022-11-18 20:17:54,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:54,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800715364] [2022-11-18 20:17:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:54,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:17:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:17:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:17:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:17:54,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:54,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800715364] [2022-11-18 20:17:54,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800715364] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:54,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336823855] [2022-11-18 20:17:54,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:54,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:17:54,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:54,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:17:54,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:17:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:54,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:17:54,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:17:54,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:17:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:17:54,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336823855] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:17:54,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:17:54,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-11-18 20:17:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160620405] [2022-11-18 20:17:54,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:17:54,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:17:54,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:17:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:17:54,769 INFO L87 Difference]: Start difference. First operand 253 states and 310 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:17:55,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:55,363 INFO L93 Difference]: Finished difference Result 586 states and 754 transitions. [2022-11-18 20:17:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 20:17:55,363 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-11-18 20:17:55,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:55,366 INFO L225 Difference]: With dead ends: 586 [2022-11-18 20:17:55,366 INFO L226 Difference]: Without dead ends: 381 [2022-11-18 20:17:55,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:17:55,368 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 236 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:55,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 524 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:17:55,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-18 20:17:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 348. [2022-11-18 20:17:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 276 states have (on average 1.213768115942029) internal successors, (335), 294 states have internal predecessors, (335), 34 states have call successors, (34), 33 states have call predecessors, (34), 37 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2022-11-18 20:17:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 430 transitions. [2022-11-18 20:17:55,406 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 430 transitions. Word has length 78 [2022-11-18 20:17:55,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:55,407 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 430 transitions. [2022-11-18 20:17:55,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 20:17:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 430 transitions. [2022-11-18 20:17:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 20:17:55,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:55,410 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 20:17:55,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:17:55,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:17:55,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:55,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1937588267, now seen corresponding path program 2 times [2022-11-18 20:17:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:55,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502019900] [2022-11-18 20:17:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:55,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:17:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:17:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:55,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:17:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:56,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:17:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:17:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:56,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 20:17:56,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:56,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502019900] [2022-11-18 20:17:56,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502019900] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:17:56,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234735615] [2022-11-18 20:17:56,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:17:56,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:17:56,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:17:56,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:17:56,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:17:56,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:17:56,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:17:56,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:17:56,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:17:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:17:56,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:17:56,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234735615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:56,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:17:56,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-18 20:17:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575125682] [2022-11-18 20:17:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:56,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:17:56,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:56,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:17:56,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:17:56,321 INFO L87 Difference]: Start difference. First operand 348 states and 430 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 20:17:56,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:56,677 INFO L93 Difference]: Finished difference Result 927 states and 1188 transitions. [2022-11-18 20:17:56,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:17:56,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 113 [2022-11-18 20:17:56,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:56,683 INFO L225 Difference]: With dead ends: 927 [2022-11-18 20:17:56,684 INFO L226 Difference]: Without dead ends: 626 [2022-11-18 20:17:56,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:17:56,686 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 210 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:56,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 532 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:56,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-11-18 20:17:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 565. [2022-11-18 20:17:56,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 450 states have (on average 1.2066666666666668) internal successors, (543), 475 states have internal predecessors, (543), 55 states have call successors, (55), 54 states have call predecessors, (55), 59 states have return successors, (96), 51 states have call predecessors, (96), 55 states have call successors, (96) [2022-11-18 20:17:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 694 transitions. [2022-11-18 20:17:56,778 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 694 transitions. Word has length 113 [2022-11-18 20:17:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:56,779 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 694 transitions. [2022-11-18 20:17:56,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-18 20:17:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 694 transitions. [2022-11-18 20:17:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-18 20:17:56,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:17:56,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 20:17:56,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:17:56,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:17:56,988 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:17:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:17:56,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1481360023, now seen corresponding path program 1 times [2022-11-18 20:17:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:17:56,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390633260] [2022-11-18 20:17:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:17:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:17:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:17:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 20:17:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:17:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:17:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:17:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 20:17:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:17:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:57,163 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:17:57,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:17:57,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390633260] [2022-11-18 20:17:57,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390633260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:17:57,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:17:57,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:17:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877273959] [2022-11-18 20:17:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:17:57,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:17:57,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:17:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:17:57,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:17:57,166 INFO L87 Difference]: Start difference. First operand 565 states and 694 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:17:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:17:57,372 INFO L93 Difference]: Finished difference Result 773 states and 939 transitions. [2022-11-18 20:17:57,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:17:57,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 113 [2022-11-18 20:17:57,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:17:57,374 INFO L225 Difference]: With dead ends: 773 [2022-11-18 20:17:57,374 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:17:57,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:17:57,377 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:17:57,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 259 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:17:57,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:17:57,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:17:57,379 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) [2022-11-18 20:17:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:17:57,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2022-11-18 20:17:57,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:17:57,380 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:17:57,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 20:17:57,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:17:57,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:17:57,383 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:17:57,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:17:57,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:17:59,650 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2022-11-18 20:17:59,650 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2022-11-18 20:17:59,650 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 624 635) the Hoare annotation is: true [2022-11-18 20:17:59,650 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 624 635) no Hoare annotation was computed. [2022-11-18 20:17:59,650 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 624 635) no Hoare annotation was computed. [2022-11-18 20:17:59,650 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 894) no Hoare annotation was computed. [2022-11-18 20:17:59,651 INFO L895 garLoopResultBuilder]: At program point L696(lines 691 699) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,651 INFO L899 garLoopResultBuilder]: For program point L890-2(lines 890 894) no Hoare annotation was computed. [2022-11-18 20:17:59,651 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,651 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2022-11-18 20:17:59,651 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,651 INFO L895 garLoopResultBuilder]: At program point L784-1(lines 765 789) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse4)) (.cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse1)) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1) .cse2 .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or .cse2 .cse3 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-18 20:17:59,652 INFO L899 garLoopResultBuilder]: For program point L718-1(lines 718 724) no Hoare annotation was computed. [2022-11-18 20:17:59,652 INFO L899 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2022-11-18 20:17:59,652 INFO L895 garLoopResultBuilder]: At program point L673(lines 668 676) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-18 20:17:59,652 INFO L895 garLoopResultBuilder]: At program point L896(lines 881 899) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,652 INFO L895 garLoopResultBuilder]: At program point L822(lines 817 825) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,652 INFO L895 garLoopResultBuilder]: At program point L554(lines 549 556) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,652 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 710 729) no Hoare annotation was computed. [2022-11-18 20:17:59,652 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 600 611) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,653 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 707 730) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2022-11-18 20:17:59,653 INFO L895 garLoopResultBuilder]: At program point L427-1(lines 419 443) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse1 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (not .cse5))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse3) (or .cse0 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) .cse4 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2022-11-18 20:17:59,653 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L895 garLoopResultBuilder]: At program point L803(lines 798 805) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 447 476) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 447 476) the Hoare annotation is: true [2022-11-18 20:17:59,654 INFO L902 garLoopResultBuilder]: At program point L472(lines 447 476) the Hoare annotation is: true [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 465) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L902 garLoopResultBuilder]: At program point L461-1(lines 461 465) the Hoare annotation is: true [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L902 garLoopResultBuilder]: At program point L457-2(lines 457 471) the Hoare annotation is: true [2022-11-18 20:17:59,654 INFO L902 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: true [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point L453-1(line 453) no Hoare annotation was computed. [2022-11-18 20:17:59,654 INFO L899 garLoopResultBuilder]: For program point L535(lines 535 542) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point L535-2(lines 535 542) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L902 garLoopResultBuilder]: At program point L519(lines 512 521) the Hoare annotation is: true [2022-11-18 20:17:59,655 INFO L902 garLoopResultBuilder]: At program point L544(lines 525 547) the Hoare annotation is: true [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L895 garLoopResultBuilder]: At program point L573(lines 569 575) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 961) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L895 garLoopResultBuilder]: At program point L957-2(lines 949 962) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point L920(lines 919 966) no Hoare annotation was computed. [2022-11-18 20:17:59,655 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 962) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L895 garLoopResultBuilder]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-18 20:17:59,656 INFO L902 garLoopResultBuilder]: At program point L970(lines 909 974) the Hoare annotation is: true [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 935) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L895 garLoopResultBuilder]: At program point L508(lines 504 510) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 925) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L895 garLoopResultBuilder]: At program point L905(lines 900 907) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-18 20:17:59,656 INFO L895 garLoopResultBuilder]: At program point L967(lines 918 968) the Hoare annotation is: false [2022-11-18 20:17:59,656 INFO L895 garLoopResultBuilder]: At program point L588(lines 583 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2022-11-18 20:17:59,656 INFO L899 garLoopResultBuilder]: For program point L939-1(lines 939 945) no Hoare annotation was computed. [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L580(lines 576 582) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L964(lines 919 966) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L795(lines 790 797) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-11-18 20:17:59,657 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2022-11-18 20:17:59,657 INFO L895 garLoopResultBuilder]: At program point L686(lines 677 690) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-11-18 20:17:59,657 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0))) (and (or .cse0 .cse1 (and .cse2 .cse3) (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 .cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-11-18 20:17:59,658 INFO L895 garLoopResultBuilder]: At program point L877(lines 862 880) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))) (or .cse0 .cse2 .cse1 (not (<= 2 ~waterLevel~0))))) [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 687) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L871-2(lines 871 875) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 612 623) no Hoare annotation was computed. [2022-11-18 20:17:59,658 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 612 623) no Hoare annotation was computed. [2022-11-18 20:17:59,662 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 612 623) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-18 20:17:59,666 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:17:59,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:17:59,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:17:59 BoogieIcfgContainer [2022-11-18 20:17:59,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:17:59,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:17:59,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:17:59,715 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:17:59,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:17:49" (3/4) ... [2022-11-18 20:17:59,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:17:59,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 20:17:59,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 20:17:59,727 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 20:17:59,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 20:17:59,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 20:17:59,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 20:17:59,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-18 20:17:59,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 20:17:59,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:17:59,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:17:59,748 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:17:59,781 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 20:17:59,781 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 [2022-11-18 20:17:59,782 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-11-18 20:17:59,783 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,786 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-11-18 20:17:59,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-11-18 20:17:59,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-18 20:17:59,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) [2022-11-18 20:17:59,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) [2022-11-18 20:17:59,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-18 20:17:59,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-11-18 20:17:59,839 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:17:59,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:17:59,840 INFO L158 Benchmark]: Toolchain (without parser) took 11300.26ms. Allocated memory was 127.9MB in the beginning and 207.6MB in the end (delta: 79.7MB). Free memory was 85.7MB in the beginning and 165.3MB in the end (delta: -79.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:17:59,840 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:17:59,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.23ms. Allocated memory is still 127.9MB. Free memory was 85.5MB in the beginning and 93.7MB in the end (delta: -8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.82ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 91.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,842 INFO L158 Benchmark]: Boogie Preprocessor took 62.57ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,843 INFO L158 Benchmark]: RCFGBuilder took 549.39ms. Allocated memory is still 127.9MB. Free memory was 89.5MB in the beginning and 73.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,845 INFO L158 Benchmark]: TraceAbstraction took 9914.93ms. Allocated memory was 127.9MB in the beginning and 207.6MB in the end (delta: 79.7MB). Free memory was 72.8MB in the beginning and 170.5MB in the end (delta: -97.7MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,845 INFO L158 Benchmark]: Witness Printer took 124.41ms. Allocated memory is still 207.6MB. Free memory was 170.5MB in the beginning and 165.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:17:59,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.23ms. Allocated memory is still 127.9MB. Free memory was 85.5MB in the beginning and 93.7MB in the end (delta: -8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.82ms. Allocated memory is still 127.9MB. Free memory was 93.7MB in the beginning and 91.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.57ms. Allocated memory is still 127.9MB. Free memory was 91.1MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.39ms. Allocated memory is still 127.9MB. Free memory was 89.5MB in the beginning and 73.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9914.93ms. Allocated memory was 127.9MB in the beginning and 207.6MB in the end (delta: 79.7MB). Free memory was 72.8MB in the beginning and 170.5MB in the end (delta: -97.7MB). Peak memory consumption was 97.3MB. Max. memory is 16.1GB. * Witness Printer took 124.41ms. Allocated memory is still 207.6MB. Free memory was 170.5MB in the beginning and 165.3MB 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: 553]: 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 7 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1556 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1534 mSDsluCounter, 3989 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 301 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1810 IncrementalHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 301 mSolverCounterUnsat, 1110 mSDtfsCounter, 1810 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 353 SyntacticMatches, 11 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=565occurred in iteration=12, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 171 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 999 PreInvPairs, 1082 NumberOfFragments, 1011 HoareAnnotationTreeSize, 999 FomulaSimplifications, 1361 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 39 FomulaSimplificationsInter, 3265 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 902 ConstructedInterpolants, 0 QuantifiedInterpolants, 1757 SizeOfPredicates, 8 NumberOfNonLiveVariables, 675 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 264/294 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: 576]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:17:59,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d225dc5a-2c51-4a73-8d61-de20da4c7384/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE