./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa --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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:00,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:00,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:00,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:00,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:00,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:00,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:00,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:00,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:00,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:00,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:00,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:00,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:00,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:00,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:00,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:00,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:00,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:00,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:00,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:00,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:00,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:00,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:00,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:00,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:00,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:00,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:00,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:00,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:00,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:00,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:00,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:00,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:00,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:00,081 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:00,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:00,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:00,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:00,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:00,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:00,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:00,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:15:00,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:00,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:00,110 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:00,110 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:00,111 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:00,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:00,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:00,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:00,111 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:00,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:00,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:15:00,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:00,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:00,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:15:00,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:15:00,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:00,115 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_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2021-12-06 17:15:00,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:00,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:00,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:00,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:00,306 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:00,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-12-06 17:15:00,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/data/477d7df2b/8261f60f43c6470799b570e09c08a98e/FLAG0238b733a [2021-12-06 17:15:00,768 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:00,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-12-06 17:15:00,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/data/477d7df2b/8261f60f43c6470799b570e09c08a98e/FLAG0238b733a [2021-12-06 17:15:00,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/data/477d7df2b/8261f60f43c6470799b570e09c08a98e [2021-12-06 17:15:00,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:00,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:00,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:00,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:00,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:00,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:00" (1/1) ... [2021-12-06 17:15:00,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7efb4c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:00, skipping insertion in model container [2021-12-06 17:15:00,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:00" (1/1) ... [2021-12-06 17:15:00,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:00,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:00,947 WARN L230 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_89158775-c236-4ee3-b7fc-062b52f2e327/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2021-12-06 17:15:01,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:01,058 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:01,069 WARN L230 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_89158775-c236-4ee3-b7fc-062b52f2e327/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2021-12-06 17:15:01,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:01,141 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:01,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01 WrapperNode [2021-12-06 17:15:01,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:01,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:01,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:01,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:01,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,186 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 235 [2021-12-06 17:15:01,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:01,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:01,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:01,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:01,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:01,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:01,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:01,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:01,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (1/1) ... [2021-12-06 17:15:01,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:01,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:01,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 17:15:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 17:15:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 17:15:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 17:15:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 17:15:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 17:15:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 17:15:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 17:15:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-06 17:15:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-06 17:15:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:15:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 17:15:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 17:15:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:01,343 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:01,345 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:01,564 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:01,572 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:01,573 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:15:01,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:01 BoogieIcfgContainer [2021-12-06 17:15:01,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:01,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:01,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:01,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:01,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:00" (1/3) ... [2021-12-06 17:15:01,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d45ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:01, skipping insertion in model container [2021-12-06 17:15:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:01" (2/3) ... [2021-12-06 17:15:01,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d45ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:01, skipping insertion in model container [2021-12-06 17:15:01,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:01" (3/3) ... [2021-12-06 17:15:01,582 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2021-12-06 17:15:01,587 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:01,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:15:01,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:01,635 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:15:01,635 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:15:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-06 17:15:01,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 17:15:01,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:01,657 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:01,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:01,663 INFO L85 PathProgramCache]: Analyzing trace with hash -569276447, now seen corresponding path program 1 times [2021-12-06 17:15:01,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:01,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971391389] [2021-12-06 17:15:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:01,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 17:15:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 17:15:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:01,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:01,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971391389] [2021-12-06 17:15:01,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971391389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:01,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:01,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:15:01,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024111681] [2021-12-06 17:15:01,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:01,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:15:01,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:15:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:15:01,910 INFO L87 Difference]: Start difference. First operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:01,933 INFO L93 Difference]: Finished difference Result 159 states and 216 transitions. [2021-12-06 17:15:01,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:15:01,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-12-06 17:15:01,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:01,942 INFO L225 Difference]: With dead ends: 159 [2021-12-06 17:15:01,942 INFO L226 Difference]: Without dead ends: 75 [2021-12-06 17:15:01,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:15:01,947 INFO L933 BasicCegarLoop]: 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 [2021-12-06 17:15:01,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-06 17:15:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-12-06 17:15:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.305084745762712) internal successors, (77), 64 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-06 17:15:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2021-12-06 17:15:01,980 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 32 [2021-12-06 17:15:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:01,981 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2021-12-06 17:15:01,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2021-12-06 17:15:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 17:15:01,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:01,983 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:01,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:15:01,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash -292889895, now seen corresponding path program 1 times [2021-12-06 17:15:01,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:01,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549151675] [2021-12-06 17:15:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:01,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:15:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 17:15:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549151675] [2021-12-06 17:15:02,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549151675] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:02,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145554482] [2021-12-06 17:15:02,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:02,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:02,055 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,066 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2021-12-06 17:15:02,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:02,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-12-06 17:15:02,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,068 INFO L225 Difference]: With dead ends: 111 [2021-12-06 17:15:02,068 INFO L226 Difference]: Without dead ends: 66 [2021-12-06 17:15:02,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:02,070 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 145 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 [2021-12-06 17:15:02,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-06 17:15:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-12-06 17:15:02,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-06 17:15:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2021-12-06 17:15:02,077 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 33 [2021-12-06 17:15:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,078 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2021-12-06 17:15:02,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2021-12-06 17:15:02,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-06 17:15:02,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,079 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:15:02,079 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2081952552, now seen corresponding path program 1 times [2021-12-06 17:15:02,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843458772] [2021-12-06 17:15:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 17:15:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843458772] [2021-12-06 17:15:02,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843458772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:15:02,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172278563] [2021-12-06 17:15:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:15:02,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:15:02,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:15:02,153 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,259 INFO L93 Difference]: Finished difference Result 225 states and 295 transitions. [2021-12-06 17:15:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:15:02,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 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 37 [2021-12-06 17:15:02,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,261 INFO L225 Difference]: With dead ends: 225 [2021-12-06 17:15:02,261 INFO L226 Difference]: Without dead ends: 167 [2021-12-06 17:15:02,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:02,263 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 218 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:02,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 407 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-12-06 17:15:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2021-12-06 17:15:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.3495934959349594) internal successors, (166), 134 states have internal predecessors, (166), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2021-12-06 17:15:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 205 transitions. [2021-12-06 17:15:02,283 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 205 transitions. Word has length 37 [2021-12-06 17:15:02,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,283 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 205 transitions. [2021-12-06 17:15:02,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 205 transitions. [2021-12-06 17:15:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-06 17:15:02,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,285 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:15:02,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1830972643, now seen corresponding path program 1 times [2021-12-06 17:15:02,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374415542] [2021-12-06 17:15:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:15:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 17:15:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 17:15:02,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374415542] [2021-12-06 17:15:02,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374415542] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 17:15:02,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702437919] [2021-12-06 17:15:02,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 17:15:02,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:15:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:15:02,351 INFO L87 Difference]: Start difference. First operand 157 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), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,429 INFO L93 Difference]: Finished difference Result 399 states and 531 transitions. [2021-12-06 17:15:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:15:02,430 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, (3), 2 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 41 [2021-12-06 17:15:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,432 INFO L225 Difference]: With dead ends: 399 [2021-12-06 17:15:02,432 INFO L226 Difference]: Without dead ends: 250 [2021-12-06 17:15:02,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:15:02,435 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 41 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:02,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 402 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:02,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-06 17:15:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 235. [2021-12-06 17:15:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 181 states have (on average 1.292817679558011) internal successors, (234), 194 states have internal predecessors, (234), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-12-06 17:15:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 298 transitions. [2021-12-06 17:15:02,464 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 298 transitions. Word has length 41 [2021-12-06 17:15:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,465 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 298 transitions. [2021-12-06 17:15:02,465 INFO L471 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 17:15:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 298 transitions. [2021-12-06 17:15:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:15:02,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,468 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 17:15:02,468 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1378984981, now seen corresponding path program 1 times [2021-12-06 17:15:02,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818594574] [2021-12-06 17:15:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:15:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818594574] [2021-12-06 17:15:02,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818594574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:15:02,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244311522] [2021-12-06 17:15:02,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 17:15:02,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 17:15:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:02,536 INFO L87 Difference]: Start difference. First operand 235 states and 298 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,576 INFO L93 Difference]: Finished difference Result 490 states and 632 transitions. [2021-12-06 17:15:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:15:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 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 46 [2021-12-06 17:15:02,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,579 INFO L225 Difference]: With dead ends: 490 [2021-12-06 17:15:02,579 INFO L226 Difference]: Without dead ends: 263 [2021-12-06 17:15:02,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:15:02,581 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 42 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:02,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 360 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:02,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-12-06 17:15:02,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 241. [2021-12-06 17:15:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 187 states have (on average 1.2834224598930482) internal successors, (240), 200 states have internal predecessors, (240), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-12-06 17:15:02,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 304 transitions. [2021-12-06 17:15:02,600 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 304 transitions. Word has length 46 [2021-12-06 17:15:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,601 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 304 transitions. [2021-12-06 17:15:02,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,601 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 304 transitions. [2021-12-06 17:15:02,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:15:02,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,603 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 17:15:02,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash -209362921, now seen corresponding path program 1 times [2021-12-06 17:15:02,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955563524] [2021-12-06 17:15:02,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:15:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955563524] [2021-12-06 17:15:02,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955563524] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 17:15:02,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122071303] [2021-12-06 17:15:02,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 17:15:02,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:15:02,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:15:02,640 INFO L87 Difference]: Start difference. First operand 241 states and 304 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,664 INFO L93 Difference]: Finished difference Result 506 states and 653 transitions. [2021-12-06 17:15:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 17:15:02,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 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 46 [2021-12-06 17:15:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,667 INFO L225 Difference]: With dead ends: 506 [2021-12-06 17:15:02,667 INFO L226 Difference]: Without dead ends: 273 [2021-12-06 17:15:02,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:02,669 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 27 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:02,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-12-06 17:15:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 245. [2021-12-06 17:15:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.2774869109947644) internal successors, (244), 204 states have internal predecessors, (244), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-12-06 17:15:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2021-12-06 17:15:02,689 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 46 [2021-12-06 17:15:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,689 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2021-12-06 17:15:02,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2021-12-06 17:15:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 17:15:02,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,691 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 17:15:02,691 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1898306663, now seen corresponding path program 1 times [2021-12-06 17:15:02,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528610374] [2021-12-06 17:15:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:15:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 17:15:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528610374] [2021-12-06 17:15:02,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528610374] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 17:15:02,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83723418] [2021-12-06 17:15:02,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:02,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:02,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:02,735 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:02,759 INFO L93 Difference]: Finished difference Result 609 states and 775 transitions. [2021-12-06 17:15:02,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:02,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 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 46 [2021-12-06 17:15:02,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:02,762 INFO L225 Difference]: With dead ends: 609 [2021-12-06 17:15:02,762 INFO L226 Difference]: Without dead ends: 372 [2021-12-06 17:15:02,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 17:15:02,764 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:02,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 159 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-06 17:15:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-12-06 17:15:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 290 states have (on average 1.2482758620689656) internal successors, (362), 306 states have internal predecessors, (362), 46 states have call successors, (46), 38 states have call predecessors, (46), 35 states have return successors, (53), 43 states have call predecessors, (53), 46 states have call successors, (53) [2021-12-06 17:15:02,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 461 transitions. [2021-12-06 17:15:02,784 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 461 transitions. Word has length 46 [2021-12-06 17:15:02,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:02,784 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 461 transitions. [2021-12-06 17:15:02,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 17:15:02,784 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 461 transitions. [2021-12-06 17:15:02,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-06 17:15:02,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:02,786 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:02,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 17:15:02,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:02,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:02,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1296933517, now seen corresponding path program 1 times [2021-12-06 17:15:02,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:02,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947824304] [2021-12-06 17:15:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:02,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:15:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:15:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 17:15:02,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:02,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947824304] [2021-12-06 17:15:02,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947824304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:02,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:02,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 17:15:02,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095523773] [2021-12-06 17:15:02,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:02,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 17:15:02,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 17:15:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:15:02,870 INFO L87 Difference]: Start difference. First operand 372 states and 461 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 17:15:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:03,123 INFO L93 Difference]: Finished difference Result 1215 states and 1556 transitions. [2021-12-06 17:15:03,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:15:03,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2021-12-06 17:15:03,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:03,131 INFO L225 Difference]: With dead ends: 1215 [2021-12-06 17:15:03,131 INFO L226 Difference]: Without dead ends: 978 [2021-12-06 17:15:03,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-12-06 17:15:03,134 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 230 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:03,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 651 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 17:15:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-12-06 17:15:03,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 901. [2021-12-06 17:15:03,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 707 states have (on average 1.2305516265912306) internal successors, (870), 751 states have internal predecessors, (870), 106 states have call successors, (106), 81 states have call predecessors, (106), 87 states have return successors, (132), 101 states have call predecessors, (132), 106 states have call successors, (132) [2021-12-06 17:15:03,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1108 transitions. [2021-12-06 17:15:03,205 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1108 transitions. Word has length 50 [2021-12-06 17:15:03,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:03,206 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1108 transitions. [2021-12-06 17:15:03,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-06 17:15:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1108 transitions. [2021-12-06 17:15:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-06 17:15:03,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:03,209 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:03,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 17:15:03,209 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1580462347, now seen corresponding path program 1 times [2021-12-06 17:15:03,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:03,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449740369] [2021-12-06 17:15:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:03,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:15:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-06 17:15:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:15:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-06 17:15:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 17:15:03,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449740369] [2021-12-06 17:15:03,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449740369] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192042485] [2021-12-06 17:15:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:03,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:03,318 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:03,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:15:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:03,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:15:03,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:03,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:15:03,719 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 17:15:03,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192042485] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:15:03,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:15:03,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2021-12-06 17:15:03,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738616404] [2021-12-06 17:15:03,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:15:03,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 17:15:03,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 17:15:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:15:03,721 INFO L87 Difference]: Start difference. First operand 901 states and 1108 transitions. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-06 17:15:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:04,358 INFO L93 Difference]: Finished difference Result 1670 states and 2118 transitions. [2021-12-06 17:15:04,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-12-06 17:15:04,359 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 81 [2021-12-06 17:15:04,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:04,364 INFO L225 Difference]: With dead ends: 1670 [2021-12-06 17:15:04,364 INFO L226 Difference]: Without dead ends: 898 [2021-12-06 17:15:04,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1480, Unknown=0, NotChecked=0, Total=1806 [2021-12-06 17:15:04,367 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 346 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:04,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1179 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 17:15:04,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-12-06 17:15:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 803. [2021-12-06 17:15:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 618 states have (on average 1.2119741100323624) internal successors, (749), 659 states have internal predecessors, (749), 100 states have call successors, (100), 84 states have call predecessors, (100), 84 states have return successors, (119), 89 states have call predecessors, (119), 100 states have call successors, (119) [2021-12-06 17:15:04,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 968 transitions. [2021-12-06 17:15:04,407 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 968 transitions. Word has length 81 [2021-12-06 17:15:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:04,408 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 968 transitions. [2021-12-06 17:15:04,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2021-12-06 17:15:04,408 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 968 transitions. [2021-12-06 17:15:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-12-06 17:15:04,410 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:04,411 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:04,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:15:04,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:04,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:04,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:04,612 INFO L85 PathProgramCache]: Analyzing trace with hash -158765002, now seen corresponding path program 1 times [2021-12-06 17:15:04,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:04,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627031131] [2021-12-06 17:15:04,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:04,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 17:15:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 17:15:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:15:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:15:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 17:15:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-06 17:15:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 17:15:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-12-06 17:15:04,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627031131] [2021-12-06 17:15:04,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627031131] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:15:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707779697] [2021-12-06 17:15:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:04,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:15:04,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:04,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:15:04,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 17:15:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:04,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:15:04,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-06 17:15:04,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:15:04,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707779697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:04,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:15:04,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2021-12-06 17:15:04,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730497796] [2021-12-06 17:15:04,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:04,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:15:04,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:04,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:15:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:04,918 INFO L87 Difference]: Start difference. First operand 803 states and 968 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 17:15:04,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:04,943 INFO L93 Difference]: Finished difference Result 978 states and 1187 transitions. [2021-12-06 17:15:04,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 17:15:04,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2021-12-06 17:15:04,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:04,944 INFO L225 Difference]: With dead ends: 978 [2021-12-06 17:15:04,944 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 17:15:04,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 17:15:04,947 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 36 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:15:04,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 195 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:04,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 17:15:04,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 17:15:04,947 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) [2021-12-06 17:15:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 17:15:04,948 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2021-12-06 17:15:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:04,948 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:15:04,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 17:15:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:15:04,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 17:15:04,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 17:15:04,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 17:15:05,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 17:15:05,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 17:15:07,028 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 768 774) no Hoare annotation was computed. [2021-12-06 17:15:07,028 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 768 774) the Hoare annotation is: true [2021-12-06 17:15:07,028 INFO L858 garLoopResultBuilder]: For program point L669-1(lines 665 676) no Hoare annotation was computed. [2021-12-06 17:15:07,028 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 665 676) the Hoare annotation is: true [2021-12-06 17:15:07,028 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 665 676) no Hoare annotation was computed. [2021-12-06 17:15:07,029 INFO L854 garLoopResultBuilder]: At program point L795(line 795) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,029 INFO L854 garLoopResultBuilder]: At program point L795-1(lines 776 800) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 1)) (.cse10 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4)) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 .cse5 (and .cse2 .cse3 .cse6) (and .cse7 .cse6) .cse8)) (or .cse1 .cse9 (and .cse7 .cse10) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse9 .cse5 .cse8 (and .cse7 .cse4 .cse10)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,029 INFO L858 garLoopResultBuilder]: For program point L882(lines 882 886) no Hoare annotation was computed. [2021-12-06 17:15:07,029 INFO L858 garLoopResultBuilder]: For program point L882-2(lines 882 886) no Hoare annotation was computed. [2021-12-06 17:15:07,029 INFO L858 garLoopResultBuilder]: For program point L940(lines 940 946) no Hoare annotation was computed. [2021-12-06 17:15:07,029 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 741 767) no Hoare annotation was computed. [2021-12-06 17:15:07,030 INFO L854 garLoopResultBuilder]: At program point L924(lines 917 926) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse3 .cse8)) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (and (<= 1 ~pumpRunning~0) .cse8 (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse3 (= ~waterLevel~0 1))) (or .cse2 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse5 .cse7) (or .cse2 .cse4 .cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2021-12-06 17:15:07,030 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2021-12-06 17:15:07,030 INFO L858 garLoopResultBuilder]: For program point L755-1(lines 755 761) no Hoare annotation was computed. [2021-12-06 17:15:07,030 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 792) no Hoare annotation was computed. [2021-12-06 17:15:07,030 INFO L858 garLoopResultBuilder]: For program point L780(lines 780 797) no Hoare annotation was computed. [2021-12-06 17:15:07,030 INFO L854 garLoopResultBuilder]: At program point L714(lines 709 717) the Hoare annotation is: (let ((.cse10 (= 1 ~systemActive~0))) (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse9 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (not .cse10)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (<= 1 ~pumpRunning~0)) (.cse11 (= ~waterLevel~0 1)) (.cse13 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse0 .cse4 .cse5 (and .cse6 .cse7 .cse2) .cse8 (and .cse1 .cse7 .cse9 .cse10 .cse2)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse4 (and .cse1 .cse9 .cse10 .cse11)) (or .cse0 .cse7 .cse5 .cse8 .cse3) (or .cse4 .cse12 (and .cse6 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 .cse12 .cse5 .cse8 (and .cse6 .cse11 .cse13))))) [2021-12-06 17:15:07,030 INFO L854 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse6 (= ~waterLevel~0 1)) (.cse9 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse4 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse6)) (or .cse0 .cse2 .cse3 .cse5) (or .cse1 .cse7 (and .cse8 .cse9) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse7 .cse2 .cse3 (and .cse8 .cse6 .cse9)))) [2021-12-06 17:15:07,031 INFO L858 garLoopResultBuilder]: For program point L937-1(line 937) no Hoare annotation was computed. [2021-12-06 17:15:07,031 INFO L854 garLoopResultBuilder]: At program point L888(lines 873 891) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (= |timeShift_isHighWaterLevel_#res#1| 0) (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0) (= ~waterLevel~0 1))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,031 INFO L854 garLoopResultBuilder]: At program point L727(lines 718 731) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse3 (= ~waterLevel~0 1))) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,031 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-06 17:15:07,031 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 754) no Hoare annotation was computed. [2021-12-06 17:15:07,031 INFO L858 garLoopResultBuilder]: For program point L748-2(lines 744 766) no Hoare annotation was computed. [2021-12-06 17:15:07,031 INFO L854 garLoopResultBuilder]: At program point L806(lines 801 808) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 (and (<= 1 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,032 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 649) no Hoare annotation was computed. [2021-12-06 17:15:07,032 INFO L854 garLoopResultBuilder]: At program point L645-2(lines 641 652) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,032 INFO L854 garLoopResultBuilder]: At program point L922(line 922) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (and .cse0 .cse1 .cse9)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse9))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse2 .cse3 .cse5 .cse6) (or .cse4 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2021-12-06 17:15:07,032 INFO L858 garLoopResultBuilder]: For program point L922-1(line 922) no Hoare annotation was computed. [2021-12-06 17:15:07,032 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,032 INFO L854 garLoopResultBuilder]: At program point L790(line 790) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 .cse4 (= ~waterLevel~0 1))) (or .cse0 .cse1 .cse5 .cse6) (or .cse2 .cse0 .cse5 (and .cse3 .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse6) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-12-06 17:15:07,033 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 741 767) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (and .cse0 .cse1 .cse9)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse9))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse2 .cse3 .cse5 .cse6) (or .cse4 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2021-12-06 17:15:07,033 INFO L858 garLoopResultBuilder]: For program point L939(lines 939 949) no Hoare annotation was computed. [2021-12-06 17:15:07,033 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 741 767) no Hoare annotation was computed. [2021-12-06 17:15:07,033 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-06 17:15:07,033 INFO L858 garLoopResultBuilder]: For program point L935(lines 935 952) no Hoare annotation was computed. [2021-12-06 17:15:07,033 INFO L854 garLoopResultBuilder]: At program point L935-1(lines 927 955) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0))) (let ((.cse5 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (.cse3 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not .cse7)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (<= 1 ~pumpRunning~0)) (.cse13 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse0 .cse4 (and .cse1 .cse5 .cse6 .cse7 .cse8 .cse2) .cse9 (and .cse10 .cse5 .cse8 .cse2) .cse11) (or .cse0 (and .cse5 .cse8) .cse9 .cse11 .cse3) (or .cse4 .cse12 (and .cse10 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse6 .cse7 .cse2) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse4 .cse12 .cse9 .cse11 (and .cse10 (= ~waterLevel~0 1) .cse13))))) [2021-12-06 17:15:07,033 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2021-12-06 17:15:07,033 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 61 90) the Hoare annotation is: true [2021-12-06 17:15:07,034 INFO L861 garLoopResultBuilder]: At program point L86(lines 61 90) the Hoare annotation is: true [2021-12-06 17:15:07,034 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-06 17:15:07,034 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-12-06 17:15:07,034 INFO L861 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: true [2021-12-06 17:15:07,034 INFO L858 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-12-06 17:15:07,034 INFO L861 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: true [2021-12-06 17:15:07,034 INFO L861 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2021-12-06 17:15:07,034 INFO L858 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-12-06 17:15:07,034 INFO L854 garLoopResultBuilder]: At program point L122(lines 118 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:15:07,035 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 158) no Hoare annotation was computed. [2021-12-06 17:15:07,035 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2021-12-06 17:15:07,035 INFO L858 garLoopResultBuilder]: For program point L151-2(lines 151 158) no Hoare annotation was computed. [2021-12-06 17:15:07,035 INFO L858 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2021-12-06 17:15:07,035 INFO L854 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-12-06 17:15:07,035 INFO L854 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-12-06 17:15:07,035 INFO L861 garLoopResultBuilder]: At program point L135(lines 127 137) the Hoare annotation is: true [2021-12-06 17:15:07,035 INFO L861 garLoopResultBuilder]: At program point L160(lines 141 163) the Hoare annotation is: true [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L854 garLoopResultBuilder]: At program point L561(lines 556 564) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:15:07,036 INFO L854 garLoopResultBuilder]: At program point L553(lines 549 555) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:15:07,036 INFO L854 garLoopResultBuilder]: At program point L904(lines 892 906) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= 0 ~systemActive~0)) [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 902) no Hoare annotation was computed. [2021-12-06 17:15:07,036 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 620) no Hoare annotation was computed. [2021-12-06 17:15:07,037 INFO L858 garLoopResultBuilder]: For program point L896-2(lines 896 902) no Hoare annotation was computed. [2021-12-06 17:15:07,037 INFO L854 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-12-06 17:15:07,037 INFO L861 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2021-12-06 17:15:07,037 INFO L854 garLoopResultBuilder]: At program point L814(lines 809 816) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3 (<= ~waterLevel~0 2)) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 .cse1 .cse2 .cse3))) [2021-12-06 17:15:07,037 INFO L858 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-12-06 17:15:07,037 INFO L858 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2021-12-06 17:15:07,037 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2021-12-06 17:15:07,037 INFO L854 garLoopResultBuilder]: At program point L546(lines 542 548) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:15:07,038 INFO L854 garLoopResultBuilder]: At program point L914(lines 909 916) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 17:15:07,038 INFO L854 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2021-12-06 17:15:07,038 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 619) no Hoare annotation was computed. [2021-12-06 17:15:07,038 INFO L854 garLoopResultBuilder]: At program point L613-2(lines 607 620) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-12-06 17:15:07,038 INFO L858 garLoopResultBuilder]: For program point L657-1(lines 653 664) no Hoare annotation was computed. [2021-12-06 17:15:07,038 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 653 664) no Hoare annotation was computed. [2021-12-06 17:15:07,038 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 653 664) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (= ~waterLevel~0 1)) (or .cse2 .cse3 .cse1 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse2 .cse4 .cse3 .cse1 .cse5) (or .cse0 .cse2 .cse4 .cse1 .cse5))) [2021-12-06 17:15:07,038 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 828 836) no Hoare annotation was computed. [2021-12-06 17:15:07,039 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 828 836) the Hoare annotation is: true [2021-12-06 17:15:07,039 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 828 836) no Hoare annotation was computed. [2021-12-06 17:15:07,042 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:07,043 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:15:07,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:15:07 BoogieIcfgContainer [2021-12-06 17:15:07,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:15:07,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:15:07,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:15:07,077 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:15:07,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:01" (3/4) ... [2021-12-06 17:15:07,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-06 17:15:07,085 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-12-06 17:15:07,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-12-06 17:15:07,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 17:15:07,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 17:15:07,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 17:15:07,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 17:15:07,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:15:07,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 17:15:07,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-12-06 17:15:07,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-12-06 17:15:07,112 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-12-06 17:15:07,113 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) || ((((((1 <= pumpRunning && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || (((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive)) || ((((((pumpRunning == 0 && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) [2021-12-06 17:15:07,113 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) [2021-12-06 17:15:07,114 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,114 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (2 == \result && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 1 < waterLevel) && splverifierCounter == 0) && waterLevel <= 2) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \result == 1) && tmp == 1) && splverifierCounter == 0) [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || 2 == \result) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-12-06 17:15:07,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-12-06 17:15:07,137 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:15:07,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:15:07,138 INFO L158 Benchmark]: Toolchain (without parser) took 6346.79ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 68.6MB in the beginning and 97.5MB in the end (delta: -28.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,138 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:07,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.52ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 65.0MB in the end (delta: 3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.23ms. Allocated memory is still 96.5MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,139 INFO L158 Benchmark]: Boogie Preprocessor took 25.78ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 61.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,139 INFO L158 Benchmark]: RCFGBuilder took 361.59ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 68.5MB in the end (delta: -7.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,139 INFO L158 Benchmark]: TraceAbstraction took 5499.46ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 67.7MB in the beginning and 103.8MB in the end (delta: -36.1MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,139 INFO L158 Benchmark]: Witness Printer took 60.59ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 97.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 17:15:07,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.52ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 65.0MB in the end (delta: 3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.23ms. Allocated memory is still 96.5MB. Free memory was 64.9MB in the beginning and 62.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.78ms. Allocated memory is still 96.5MB. Free memory was 62.4MB in the beginning and 61.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.59ms. Allocated memory is still 96.5MB. Free memory was 60.9MB in the beginning and 68.5MB in the end (delta: -7.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5499.46ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 67.7MB in the beginning and 103.8MB in the end (delta: -36.1MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * Witness Printer took 60.59ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 97.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1012 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 996 mSDsluCounter, 3862 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2774 mSDsCounter, 289 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1166 IncrementalHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 289 mSolverCounterUnsat, 1088 mSDtfsCounter, 1166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 481 GetRequests, 398 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=901occurred in iteration=8, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 247 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1306 PreInvPairs, 1410 NumberOfFragments, 2101 HoareAnnotationTreeSize, 1306 FomulaSimplifications, 807 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 38 FomulaSimplificationsInter, 5519 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 793 NumberOfCodeBlocks, 793 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 861 ConstructedInterpolants, 0 QuantifiedInterpolants, 1583 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1041 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 430/453 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: 927]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (2 == \result && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 1 < waterLevel) && splverifierCounter == 0) && waterLevel <= 2) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \result == 1) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || 2 == \result) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) || ((((((1 <= pumpRunning && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || (((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive)) || ((((((pumpRunning == 0 && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 17:15:07,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89158775-c236-4ee3-b7fc-062b52f2e327/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE