./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:42:51,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:42:51,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:42:51,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:42:51,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:42:51,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:42:51,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:42:51,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:42:51,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:42:51,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:42:51,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:42:51,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:42:51,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:42:51,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:42:51,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:42:51,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:42:51,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:42:51,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:42:51,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:42:51,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:42:51,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:42:51,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:42:51,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:42:51,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:42:51,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:42:51,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:42:51,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:42:51,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:42:51,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:42:51,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:42:51,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:42:51,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:42:51,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:42:51,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:42:51,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:42:51,860 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:42:51,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:42:51,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:42:51,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:42:51,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:42:51,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:42:51,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:42:51,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:42:51,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:42:51,897 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:42:51,897 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:42:51,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:42:51,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:42:51,898 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:42:51,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:42:51,899 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:42:51,899 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:42:51,899 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:42:51,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:42:51,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:42:51,900 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:42:51,900 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:42:51,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:42:51,901 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:42:51,901 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:42:51,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:42:51,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:42:51,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:42:51,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:42:51,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:42:51,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:42:51,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:42:51,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:42:51,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:42:51,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:42:51,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:42:51,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:42:51,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:42:51,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:42:51,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:42:51,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:42:51,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:42:51,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:42:51,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:42:51,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:42:51,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:42:51,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:42:51,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:42:51,908 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2021-11-23 03:42:52,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:42:52,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:42:52,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:42:52,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:42:52,246 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:42:52,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-11-23 03:42:52,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/data/7f2b5bef9/35362bce9897465b9fd6986052a4cd65/FLAG876b766e0 [2021-11-23 03:42:52,902 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:42:52,906 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-11-23 03:42:52,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/data/7f2b5bef9/35362bce9897465b9fd6986052a4cd65/FLAG876b766e0 [2021-11-23 03:42:53,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/data/7f2b5bef9/35362bce9897465b9fd6986052a4cd65 [2021-11-23 03:42:53,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:42:53,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:42:53,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:42:53,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:42:53,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:42:53,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:53,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf916fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53, skipping insertion in model container [2021-11-23 03:42:53,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:53,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:42:53,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:42:53,662 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_e2bddd26-e312-4730-88be-be9e125dcc1e/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-11-23 03:42:53,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:42:53,741 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:42:53,864 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_e2bddd26-e312-4730-88be-be9e125dcc1e/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-11-23 03:42:53,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:42:53,906 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:42:53,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53 WrapperNode [2021-11-23 03:42:53,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:42:53,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:42:53,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:42:53,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:42:53,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:53,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:53,973 INFO L137 Inliner]: procedures = 56, calls = 156, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 266 [2021-11-23 03:42:53,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:42:53,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:42:53,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:42:53,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:42:53,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:53,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:42:54,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:42:54,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:42:54,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:42:54,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (1/1) ... [2021-11-23 03:42:54,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:42:54,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:42:54,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:42:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:42:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:42:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 03:42:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 03:42:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 03:42:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 03:42:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 03:42:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 03:42:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-23 03:42:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-23 03:42:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 03:42:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 03:42:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 03:42:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 03:42:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:42:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 03:42:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 03:42:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:42:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:42:54,274 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:42:54,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:42:54,628 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:42:54,757 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:42:54,758 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:42:54,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:54 BoogieIcfgContainer [2021-11-23 03:42:54,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:42:54,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:42:54,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:42:54,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:42:54,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:53" (1/3) ... [2021-11-23 03:42:54,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc22e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:54, skipping insertion in model container [2021-11-23 03:42:54,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:53" (2/3) ... [2021-11-23 03:42:54,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc22e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:54, skipping insertion in model container [2021-11-23 03:42:54,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:54" (3/3) ... [2021-11-23 03:42:54,778 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2021-11-23 03:42:54,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:42:54,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:42:54,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:42:54,865 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=FINITE_AUTOMATA, 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 [2021-11-23 03:42:54,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:42:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-23 03:42:54,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 03:42:54,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:54,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:54,892 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:54,914 INFO L85 PathProgramCache]: Analyzing trace with hash 44590314, now seen corresponding path program 1 times [2021-11-23 03:42:54,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:54,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399774835] [2021-11-23 03:42:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:54,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:55,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:55,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399774835] [2021-11-23 03:42:55,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399774835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:55,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:55,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:42:55,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272224073] [2021-11-23 03:42:55,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:55,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:42:55,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:55,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:42:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:42:55,165 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 44 states have internal predecessors, (52), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:55,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:55,238 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2021-11-23 03:42:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:42:55,241 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-11-23 03:42:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:55,251 INFO L225 Difference]: With dead ends: 110 [2021-11-23 03:42:55,252 INFO L226 Difference]: Without dead ends: 51 [2021-11-23 03:42:55,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:42:55,260 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:55,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:42:55,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-23 03:42:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-23 03:42:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 40 states have internal predecessors, (44), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 03:42:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2021-11-23 03:42:55,313 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 17 [2021-11-23 03:42:55,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:55,314 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2021-11-23 03:42:55,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2021-11-23 03:42:55,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:42:55,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:55,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:55,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:42:55,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:55,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1997038865, now seen corresponding path program 1 times [2021-11-23 03:42:55,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:55,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390722374] [2021-11-23 03:42:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:55,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:55,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:55,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:55,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390722374] [2021-11-23 03:42:55,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390722374] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:55,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:55,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:55,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459003969] [2021-11-23 03:42:55,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:55,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:55,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:55,415 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:55,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:55,491 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2021-11-23 03:42:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:55,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-11-23 03:42:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:55,497 INFO L225 Difference]: With dead ends: 79 [2021-11-23 03:42:55,497 INFO L226 Difference]: Without dead ends: 43 [2021-11-23 03:42:55,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:55,509 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:55,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 69 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:42:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-23 03:42:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-23 03:42:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 35 states have internal predecessors, (38), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:42:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2021-11-23 03:42:55,523 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 18 [2021-11-23 03:42:55,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:55,527 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2021-11-23 03:42:55,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2021-11-23 03:42:55,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:42:55,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:55,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:55,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:42:55,531 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:55,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2026259861, now seen corresponding path program 1 times [2021-11-23 03:42:55,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:55,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542908116] [2021-11-23 03:42:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:55,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:55,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:55,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:55,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542908116] [2021-11-23 03:42:55,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542908116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:55,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:55,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:42:55,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231083351] [2021-11-23 03:42:55,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:42:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:42:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:55,765 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:55,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:55,990 INFO L93 Difference]: Finished difference Result 147 states and 186 transitions. [2021-11-23 03:42:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:42:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 03:42:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:55,995 INFO L225 Difference]: With dead ends: 147 [2021-11-23 03:42:55,996 INFO L226 Difference]: Without dead ends: 106 [2021-11-23 03:42:55,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:42:55,999 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 64 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:56,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 192 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:42:56,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-23 03:42:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 87. [2021-11-23 03:42:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 67 states have internal predecessors, (74), 14 states have call successors, (14), 12 states have call predecessors, (14), 14 states have return successors, (16), 13 states have call predecessors, (16), 14 states have call successors, (16) [2021-11-23 03:42:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2021-11-23 03:42:56,050 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 20 [2021-11-23 03:42:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:56,050 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2021-11-23 03:42:56,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 03:42:56,051 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2021-11-23 03:42:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:42:56,053 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:56,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:56,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:42:56,053 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2087150998, now seen corresponding path program 1 times [2021-11-23 03:42:56,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:56,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705984508] [2021-11-23 03:42:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:56,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:56,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:56,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:56,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705984508] [2021-11-23 03:42:56,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705984508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:56,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:56,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:56,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148995387] [2021-11-23 03:42:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:56,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:56,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:56,126 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-23 03:42:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:56,193 INFO L93 Difference]: Finished difference Result 172 states and 208 transitions. [2021-11-23 03:42:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 23 [2021-11-23 03:42:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:56,196 INFO L225 Difference]: With dead ends: 172 [2021-11-23 03:42:56,198 INFO L226 Difference]: Without dead ends: 87 [2021-11-23 03:42:56,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:56,202 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:56,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 37 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:42:56,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-23 03:42:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-23 03:42:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 67 states have internal predecessors, (72), 14 states have call successors, (14), 12 states have call predecessors, (14), 14 states have return successors, (16), 13 states have call predecessors, (16), 14 states have call successors, (16) [2021-11-23 03:42:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2021-11-23 03:42:56,244 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 23 [2021-11-23 03:42:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:56,245 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2021-11-23 03:42:56,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-23 03:42:56,247 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2021-11-23 03:42:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 03:42:56,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:56,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:56,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:42:56,251 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:56,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash -857239906, now seen corresponding path program 1 times [2021-11-23 03:42:56,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:56,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948407358] [2021-11-23 03:42:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:56,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:56,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:56,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948407358] [2021-11-23 03:42:56,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948407358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:56,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:56,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:42:56,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862849379] [2021-11-23 03:42:56,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:56,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:42:56,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:56,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:42:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:56,342 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-23 03:42:56,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:56,412 INFO L93 Difference]: Finished difference Result 163 states and 199 transitions. [2021-11-23 03:42:56,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:42:56,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 26 [2021-11-23 03:42:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:56,415 INFO L225 Difference]: With dead ends: 163 [2021-11-23 03:42:56,417 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:42:56,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:42:56,420 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 34 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:56,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 87 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:42:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:42:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-11-23 03:42:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 90 states have internal predecessors, (100), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (24), 19 states have call predecessors, (24), 18 states have call successors, (24) [2021-11-23 03:42:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 142 transitions. [2021-11-23 03:42:56,469 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 142 transitions. Word has length 26 [2021-11-23 03:42:56,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:56,469 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 142 transitions. [2021-11-23 03:42:56,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-23 03:42:56,470 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 142 transitions. [2021-11-23 03:42:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:42:56,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:56,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:56,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:42:56,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:56,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:56,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1862021105, now seen corresponding path program 1 times [2021-11-23 03:42:56,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:56,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130825576] [2021-11-23 03:42:56,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:56,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:56,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:56,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:56,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130825576] [2021-11-23 03:42:56,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130825576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:56,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:56,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:42:56,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350932674] [2021-11-23 03:42:56,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:56,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:42:56,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:56,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:42:56,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:42:56,595 INFO L87 Difference]: Start difference. First operand 120 states and 142 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:42:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:56,714 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2021-11-23 03:42:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:42:56,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2021-11-23 03:42:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:56,727 INFO L225 Difference]: With dead ends: 196 [2021-11-23 03:42:56,727 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:42:56,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:42:56,734 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 37 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:56,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 140 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:42:56,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:42:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2021-11-23 03:42:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 90 states have internal predecessors, (97), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2021-11-23 03:42:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2021-11-23 03:42:56,778 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 31 [2021-11-23 03:42:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:56,779 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2021-11-23 03:42:56,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-23 03:42:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2021-11-23 03:42:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:42:56,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:56,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:56,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:42:56,782 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash 326511953, now seen corresponding path program 1 times [2021-11-23 03:42:56,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:56,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562207475] [2021-11-23 03:42:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:56,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:56,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:42:56,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:56,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562207475] [2021-11-23 03:42:56,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562207475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:42:56,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:42:56,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:42:56,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542824271] [2021-11-23 03:42:56,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:42:56,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:42:56,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:42:56,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:42:56,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:42:56,987 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:42:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:42:57,614 INFO L93 Difference]: Finished difference Result 345 states and 417 transitions. [2021-11-23 03:42:57,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 03:42:57,615 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 34 [2021-11-23 03:42:57,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:42:57,620 INFO L225 Difference]: With dead ends: 345 [2021-11-23 03:42:57,621 INFO L226 Difference]: Without dead ends: 271 [2021-11-23 03:42:57,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-11-23 03:42:57,627 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 277 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:42:57,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 242 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:42:57,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-23 03:42:57,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 249. [2021-11-23 03:42:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 172 states have (on average 1.2209302325581395) internal successors, (210), 189 states have internal predecessors, (210), 38 states have call successors, (38), 35 states have call predecessors, (38), 38 states have return successors, (47), 37 states have call predecessors, (47), 38 states have call successors, (47) [2021-11-23 03:42:57,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 295 transitions. [2021-11-23 03:42:57,697 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 295 transitions. Word has length 34 [2021-11-23 03:42:57,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:42:57,699 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 295 transitions. [2021-11-23 03:42:57,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:42:57,700 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 295 transitions. [2021-11-23 03:42:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 03:42:57,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:42:57,711 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:42:57,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:42:57,711 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:42:57,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:42:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1209021786, now seen corresponding path program 1 times [2021-11-23 03:42:57,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:42:57,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681995697] [2021-11-23 03:42:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:57,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:42:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:42:57,813 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:42:57,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681995697] [2021-11-23 03:42:57,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681995697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:42:57,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502989522] [2021-11-23 03:42:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:42:57,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:42:57,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:42:57,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:42:57,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:42:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:42:57,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 03:42:57,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:42:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 03:42:58,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:42:58,943 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:42:58,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502989522] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:42:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1481986132] [2021-11-23 03:42:58,969 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2021-11-23 03:42:58,969 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:42:58,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:42:58,985 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:42:58,985 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:43:02,490 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 296 for LOIs [2021-11-23 03:43:03,260 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 294 for LOIs [2021-11-23 03:43:03,452 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:43:15,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1481986132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:15,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:43:15,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7, 8, 8] total 29 [2021-11-23 03:43:15,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110446324] [2021-11-23 03:43:15,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:15,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:43:15,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:15,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:43:15,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2021-11-23 03:43:15,934 INFO L87 Difference]: Start difference. First operand 249 states and 295 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:43:18,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:18,164 INFO L93 Difference]: Finished difference Result 433 states and 513 transitions. [2021-11-23 03:43:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:43:18,165 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 48 [2021-11-23 03:43:18,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:18,168 INFO L225 Difference]: With dead ends: 433 [2021-11-23 03:43:18,168 INFO L226 Difference]: Without dead ends: 284 [2021-11-23 03:43:18,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 115 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-11-23 03:43:18,170 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 33 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:18,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 205 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:43:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-11-23 03:43:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2021-11-23 03:43:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 193 states have (on average 1.2124352331606219) internal successors, (234), 210 states have internal predecessors, (234), 42 states have call successors, (42), 39 states have call predecessors, (42), 42 states have return successors, (51), 41 states have call predecessors, (51), 42 states have call successors, (51) [2021-11-23 03:43:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 327 transitions. [2021-11-23 03:43:18,218 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 327 transitions. Word has length 48 [2021-11-23 03:43:18,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:18,218 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 327 transitions. [2021-11-23 03:43:18,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 03:43:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 327 transitions. [2021-11-23 03:43:18,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 03:43:18,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:18,221 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:43:18,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:43:18,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:18,429 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1508820517, now seen corresponding path program 1 times [2021-11-23 03:43:18,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:18,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596256927] [2021-11-23 03:43:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:18,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:43:18,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:18,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596256927] [2021-11-23 03:43:18,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596256927] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:18,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885412767] [2021-11-23 03:43:18,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:18,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:18,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:18,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:18,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:43:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:18,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 03:43:18,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:43:18,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:43:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:43:19,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885412767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:43:19,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1988447086] [2021-11-23 03:43:19,405 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-23 03:43:19,405 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:43:19,405 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:43:19,406 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:43:19,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:43:24,001 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2021-11-23 03:43:24,063 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 27 for LOIs [2021-11-23 03:43:24,187 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 24 for LOIs [2021-11-23 03:43:24,220 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 25 for LOIs [2021-11-23 03:43:24,222 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:43:31,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1988447086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:31,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:43:31,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [7, 9, 8] total 40 [2021-11-23 03:43:31,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046483301] [2021-11-23 03:43:31,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:31,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-23 03:43:31,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-23 03:43:31,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1327, Unknown=0, NotChecked=0, Total=1560 [2021-11-23 03:43:31,503 INFO L87 Difference]: Start difference. First operand 278 states and 327 transitions. Second operand has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:43:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:41,085 INFO L93 Difference]: Finished difference Result 505 states and 604 transitions. [2021-11-23 03:43:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-23 03:43:41,086 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 51 [2021-11-23 03:43:41,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:41,091 INFO L225 Difference]: With dead ends: 505 [2021-11-23 03:43:41,091 INFO L226 Difference]: Without dead ends: 330 [2021-11-23 03:43:41,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 112 SyntacticMatches, 8 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=365, Invalid=1987, Unknown=0, NotChecked=0, Total=2352 [2021-11-23 03:43:41,096 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 91 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:41,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 434 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 03:43:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-23 03:43:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 305. [2021-11-23 03:43:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 212 states have (on average 1.2028301886792452) internal successors, (255), 230 states have internal predecessors, (255), 46 states have call successors, (46), 43 states have call predecessors, (46), 46 states have return successors, (55), 44 states have call predecessors, (55), 46 states have call successors, (55) [2021-11-23 03:43:41,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 356 transitions. [2021-11-23 03:43:41,152 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 356 transitions. Word has length 51 [2021-11-23 03:43:41,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:41,153 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 356 transitions. [2021-11-23 03:43:41,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 03:43:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 356 transitions. [2021-11-23 03:43:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 03:43:41,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:41,156 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:43:41,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 03:43:41,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:41,366 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:41,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:41,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1128547770, now seen corresponding path program 1 times [2021-11-23 03:43:41,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:41,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798860143] [2021-11-23 03:43:41,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:41,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:43:41,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798860143] [2021-11-23 03:43:41,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798860143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:41,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:41,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:43:41,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843831364] [2021-11-23 03:43:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:41,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:43:41,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:41,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:43:41,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:43:41,523 INFO L87 Difference]: Start difference. First operand 305 states and 356 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 03:43:41,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:41,749 INFO L93 Difference]: Finished difference Result 498 states and 589 transitions. [2021-11-23 03:43:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:43:41,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 51 [2021-11-23 03:43:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:41,753 INFO L225 Difference]: With dead ends: 498 [2021-11-23 03:43:41,754 INFO L226 Difference]: Without dead ends: 349 [2021-11-23 03:43:41,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:43:41,755 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 118 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:41,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 122 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:43:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-23 03:43:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 281. [2021-11-23 03:43:41,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 195 states have (on average 1.1897435897435897) internal successors, (232), 209 states have internal predecessors, (232), 41 states have call successors, (41), 41 states have call predecessors, (41), 44 states have return successors, (47), 40 states have call predecessors, (47), 41 states have call successors, (47) [2021-11-23 03:43:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 320 transitions. [2021-11-23 03:43:41,808 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 320 transitions. Word has length 51 [2021-11-23 03:43:41,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:41,809 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 320 transitions. [2021-11-23 03:43:41,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 03:43:41,809 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 320 transitions. [2021-11-23 03:43:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 03:43:41,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:41,811 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:41,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:43:41,811 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:41,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:41,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1085177077, now seen corresponding path program 1 times [2021-11-23 03:43:41,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:41,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822779586] [2021-11-23 03:43:41,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:41,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:43:42,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:42,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822779586] [2021-11-23 03:43:42,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822779586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:42,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:43:42,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 03:43:42,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826887591] [2021-11-23 03:43:42,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:42,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:43:42,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:42,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:43:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:43:42,031 INFO L87 Difference]: Start difference. First operand 281 states and 320 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 03:43:42,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:42,697 INFO L93 Difference]: Finished difference Result 485 states and 566 transitions. [2021-11-23 03:43:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 03:43:42,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 52 [2021-11-23 03:43:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:42,700 INFO L225 Difference]: With dead ends: 485 [2021-11-23 03:43:42,701 INFO L226 Difference]: Without dead ends: 320 [2021-11-23 03:43:42,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2021-11-23 03:43:42,702 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 215 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:42,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 179 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:43:42,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-23 03:43:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 281. [2021-11-23 03:43:42,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 195 states have (on average 1.1794871794871795) internal successors, (230), 209 states have internal predecessors, (230), 41 states have call successors, (41), 41 states have call predecessors, (41), 44 states have return successors, (47), 40 states have call predecessors, (47), 41 states have call successors, (47) [2021-11-23 03:43:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 318 transitions. [2021-11-23 03:43:42,764 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 318 transitions. Word has length 52 [2021-11-23 03:43:42,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:42,766 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 318 transitions. [2021-11-23 03:43:42,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-23 03:43:42,767 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 318 transitions. [2021-11-23 03:43:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-23 03:43:42,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:42,770 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 03:43:42,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:43:42,770 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:42,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:42,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1476180048, now seen corresponding path program 1 times [2021-11-23 03:43:42,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:42,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787546803] [2021-11-23 03:43:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:42,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:43:43,015 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:43,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787546803] [2021-11-23 03:43:43,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787546803] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:43,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639461401] [2021-11-23 03:43:43,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:43,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:43,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:43,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:43,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:43:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:43,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 03:43:43,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:43:43,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:43:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:43:43,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639461401] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:43,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 03:43:43,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 7] total 21 [2021-11-23 03:43:43,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513197196] [2021-11-23 03:43:43,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:43,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:43:43,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:43,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:43:43,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-11-23 03:43:43,450 INFO L87 Difference]: Start difference. First operand 281 states and 318 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-23 03:43:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:43,641 INFO L93 Difference]: Finished difference Result 555 states and 660 transitions. [2021-11-23 03:43:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:43:43,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2021-11-23 03:43:43,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:43,645 INFO L225 Difference]: With dead ends: 555 [2021-11-23 03:43:43,645 INFO L226 Difference]: Without dead ends: 394 [2021-11-23 03:43:43,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2021-11-23 03:43:43,647 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 128 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:43,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 157 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:43:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-23 03:43:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 348. [2021-11-23 03:43:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 240 states have (on average 1.1625) internal successors, (279), 257 states have internal predecessors, (279), 51 states have call successors, (51), 51 states have call predecessors, (51), 56 states have return successors, (61), 50 states have call predecessors, (61), 51 states have call successors, (61) [2021-11-23 03:43:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 391 transitions. [2021-11-23 03:43:43,702 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 391 transitions. Word has length 53 [2021-11-23 03:43:43,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:43,703 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 391 transitions. [2021-11-23 03:43:43,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-23 03:43:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 391 transitions. [2021-11-23 03:43:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-23 03:43:43,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:43:43,705 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:43:43,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-23 03:43:43,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 03:43:43,921 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:43:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:43:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1886032072, now seen corresponding path program 1 times [2021-11-23 03:43:43,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:43:43,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272842616] [2021-11-23 03:43:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:43,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:43:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:43,985 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 03:43:43,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:43:43,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272842616] [2021-11-23 03:43:43,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272842616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:43:43,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930360390] [2021-11-23 03:43:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:43:43,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:43:43,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:43,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:43:43,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:43:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:43:44,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-23 03:43:44,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:43:44,307 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-11-23 03:43:44,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:43:44,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930360390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:43:44,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:43:44,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-11-23 03:43:44,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47355005] [2021-11-23 03:43:44,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:43:44,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:43:44,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:43:44,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:43:44,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:43:44,310 INFO L87 Difference]: Start difference. First operand 348 states and 391 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:43:44,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:43:44,452 INFO L93 Difference]: Finished difference Result 526 states and 604 transitions. [2021-11-23 03:43:44,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:43:44,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2021-11-23 03:43:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:43:44,455 INFO L225 Difference]: With dead ends: 526 [2021-11-23 03:43:44,455 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:43:44,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:43:44,457 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 45 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:43:44,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 185 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:43:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:43:44,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:43:44,458 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) [2021-11-23 03:43:44,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:43:44,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2021-11-23 03:43:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:43:44,459 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:43:44,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 03:43:44,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:43:44,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:43:44,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:43:44,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:43:44,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 03:43:44,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:44:03,358 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 806 812) no Hoare annotation was computed. [2021-11-23 03:44:03,359 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 806 812) the Hoare annotation is: true [2021-11-23 03:44:03,359 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 486 497) the Hoare annotation is: true [2021-11-23 03:44:03,359 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 486 497) no Hoare annotation was computed. [2021-11-23 03:44:03,360 INFO L854 garLoopResultBuilder]: At program point L704(line 704) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-23 03:44:03,360 INFO L854 garLoopResultBuilder]: At program point L854(line 854) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-23 03:44:03,360 INFO L854 garLoopResultBuilder]: At program point L429(lines 429 449) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse1 (<= ~waterLevel~0 1))) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and .cse1 .cse2) .cse3 (and .cse4 .cse1))) (or .cse5 .cse0 (not (< |old(~waterLevel~0)| 2)) (and .cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse0 .cse3 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) .cse6) (or .cse5 (not (= |#NULL.offset| 0)) .cse0 (not (= ~head~0.offset 0)) (and (<= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0) (<= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1|)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse3 (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) .cse6))) [2021-11-23 03:44:03,360 INFO L854 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2021-11-23 03:44:03,361 INFO L854 garLoopResultBuilder]: At program point L859-1(lines 840 864) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (= ~pumpRunning~0 1))) (and (let ((.cse1 (<= ~waterLevel~0 1))) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and .cse1 .cse2) .cse3 (and .cse4 .cse1))) (or .cse5 .cse0 (not (< |old(~waterLevel~0)| 2)) (and .cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse0 .cse3 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:44:03,361 INFO L858 garLoopResultBuilder]: For program point L793-1(lines 793 799) no Hoare annotation was computed. [2021-11-23 03:44:03,361 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point L435(lines 435 448) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (let ((.cse1 (or .cse0 (and (<= |old(~waterLevel~0)| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 2))))) (or .cse0 (and (< |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 2) .cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) .cse4)) (or .cse0 .cse5 .cse2 (not (< |old(~waterLevel~0)| 2))) (let ((.cse6 (<= ~waterLevel~0 1)) (.cse7 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1))) (or .cse2 (and .cse5 .cse6 .cse7) (not (= |old(~pumpRunning~0)| 1)) (and .cse6 .cse7 .cse3) .cse4)) (or .cse0 (not (= |#NULL.offset| 0)) .cse2 (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) (and (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse4 (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point L435-1(lines 420 452) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not .cse2)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) .cse4 .cse5) (or .cse0 .cse1 (not (< |old(~waterLevel~0)| 2)) (and .cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |#NULL.offset| 0)) .cse1 (not (= ~head~0.offset 0)) (not (= ~methaneLevelCritical~0 0)) (not (= |#NULL.base| 0)) (not (<= 0 |#StackHeapBarrier|)) .cse4 (and (= |timeShift_getWaterLevel_~retValue_acc~4#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~4#1| ~waterLevel~0) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1|) (= |timeShift___utac_acc__Specification3_spec__1_~tmp~3#1| 0)) (not (= ~head~0.base 0)) (not (= ~cleanupTimeShifts~0 4)) .cse5) (let ((.cse7 (<= ~waterLevel~0 1))) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse4 (and .cse6 .cse7) (and .cse7 .cse2 .cse3)))))) [2021-11-23 03:44:03,364 INFO L858 garLoopResultBuilder]: For program point L786-1(lines 785 804) no Hoare annotation was computed. [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point L848(lines 848 856) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 782 805) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 .cse2) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) .cse2 (and .cse0 (= ~pumpRunning~0 1))))) [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point L844(lines 844 861) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and (<= ~waterLevel~0 1) (= ~pumpRunning~0 1)) .cse1))) [2021-11-23 03:44:03,364 INFO L854 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (= ~pumpRunning~0 1))) (and (let ((.cse1 (<= ~waterLevel~0 1))) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (and .cse1 .cse2) .cse3 (and .cse4 .cse1))) (or .cse5 .cse0 (not (< |old(~waterLevel~0)| 2)) (and .cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse5 .cse0 .cse3 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:44:03,364 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 782 805) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point L427-1(line 427) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 704) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 565 594) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L861 garLoopResultBuilder]: At program point L575-2(lines 575 589) the Hoare annotation is: true [2021-11-23 03:44:03,365 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 565 594) the Hoare annotation is: true [2021-11-23 03:44:03,365 INFO L861 garLoopResultBuilder]: At program point L571(line 571) the Hoare annotation is: true [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point L571-1(line 571) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L861 garLoopResultBuilder]: At program point L590(lines 565 594) the Hoare annotation is: true [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point L586(line 586) no Hoare annotation was computed. [2021-11-23 03:44:03,365 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2021-11-23 03:44:03,366 INFO L861 garLoopResultBuilder]: At program point L579-1(lines 579 583) the Hoare annotation is: true [2021-11-23 03:44:03,366 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 498 506) the Hoare annotation is: true [2021-11-23 03:44:03,366 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 498 506) no Hoare annotation was computed. [2021-11-23 03:44:03,366 INFO L854 garLoopResultBuilder]: At program point L758-2(lines 750 763) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 03:44:03,366 INFO L858 garLoopResultBuilder]: For program point L721(lines 720 767) no Hoare annotation was computed. [2021-11-23 03:44:03,367 INFO L854 garLoopResultBuilder]: At program point L651(lines 651 658) the Hoare annotation is: (let ((.cse2 (select |#memory_int| 22)) (.cse9 (select |#memory_int| 28)) (.cse7 (select |#memory_int| 24)) (.cse4 (select |#memory_int| 26)) (.cse5 (select |#memory_int| 18)) (.cse6 (select |#memory_int| 23)) (.cse3 (select |#memory_int| 27)) (.cse0 (select |#memory_int| 19)) (.cse10 (select |#memory_int| 20)) (.cse11 (select |#memory_int| 1)) (.cse1 (select |#memory_int| 17)) (.cse8 (select |#memory_int| 25))) (and (= (select |#length| 15) 25) (= (select .cse0 0) 79) (= (select .cse1 6) 0) (= 9 (select |#length| 5)) (= (select |#length| 9) 21) (= 30 (select |#length| 7)) (= 1 (select |#valid| 5)) (= (select |#length| 3) 12) (= 2 (select |#length| 20)) (= (select |#valid| 15) 1) (= (select .cse2 0) 79) (= 5 (select |#length| 18)) (= ~pumpRunning~0 0) (= (select |#valid| 26) 1) (= (select .cse3 2) 0) (= (select .cse4 3) 0) (= (select |#valid| 9) 1) (= 13 (select |#length| 16)) (= (select |#length| 12) 25) (= (select .cse5 2) 73) (= (select |#length| 28) 2) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= ~methaneLevelCritical~0 0) (= 30 (select |#length| 4)) (= (select |#length| 22) 3) (= 4 (select |#length| 26)) (= 102 (select .cse6 1)) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= (select |#length| 21) 13) (= (select |#length| 27) 3) (= 2 (select |#length| 1)) (= (select |#length| 8) 9) (= 84 (select .cse5 3)) (= 41 (select .cse3 0)) (= (select |#valid| 3) 1) (= (select |#length| 19) 3) (= (select |#valid| 7) 1) (= (select |#valid| 18) 1) (= (select |#valid| 22) 1) (= 30 (select |#length| 13)) (= 117 (select .cse7 2)) (= 1 ~systemActive~0) (= (select |#valid| 24) 1) (= 30 (select |#length| 10)) (= (select .cse0 2) 0) (= 3 (select |#length| 25)) (= |ULTIMATE.start_main_~tmp~4#1| 1) (= (select |#valid| 12) 1) (= |ULTIMATE.start_valid_product_#res#1| |ULTIMATE.start_main_~tmp~4#1|) (= 82 (select .cse5 1)) (= (select .cse8 1) 110) (= (select |#valid| 28) 1) (= (select .cse8 2) 0) (= 102 (select .cse6 2)) (= (select .cse9 1) 0) (= (select |#valid| 4) 1) (= (select .cse2 2) 0) (= (select |#valid| 1) 1) (= (select |#valid| 20) 1) (= (select |#length| 6) 21) (= (select |#valid| 21) 1) (= 7 (select |#length| 24)) (= 58 (select .cse7 5)) (= (select .cse7 1) 80) (= (select .cse4 2) 102) (= (select .cse7 6) 0) (= (select .cse5 4) 0) (= (select |#valid| 14) 1) (= 109 (select .cse7 3)) (= 77 (select .cse1 1)) (= 110 (select .cse2 1)) (= 9 (select |#length| 14)) (= (select .cse1 4) 104) (= (select |#valid| 0) 0) (= 79 (select .cse4 0)) (= (select .cse9 0) 10) (= (select |#valid| 25) 1) (= ~head~0.base 0) (= 112 (select .cse7 4)) (= (select .cse6 3) 0) (= 116 (select .cse1 3)) (= (select |#valid| 2) 1) (= (select .cse10 0) 41) (= |#NULL.offset| 0) (= 9 (select |#length| 11)) (= 44 (select .cse7 0)) (= ~waterLevel~0 1) (= (select .cse4 1) 102) (= (select .cse11 0) 48) (= 67 (select .cse5 0)) (= (select |#valid| 23) 1) (= 4 (select |#length| 23)) (= (select .cse6 0) 79) (= (select .cse3 1) 32) (= 101 (select .cse1 2)) (= (select |#valid| 19) 1) (= (select .cse0 1) 75) (= (select .cse10 1) 0) (= 44 (select .cse1 0)) (= (select |#valid| 16) 1) (= (select |#valid| 6) 1) (= |ULTIMATE.start_valid_product_~retValue_acc~9#1| |ULTIMATE.start_valid_product_#res#1|) (= (select .cse11 1) 0) (= (select |#length| 17) 7) (= (select |#valid| 17) 1) (= (select |#valid| 10) 1) (= (select |#valid| 8) 1) (= (select .cse1 5) 58) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= (select .cse8 0) 79))) [2021-11-23 03:44:03,367 INFO L861 garLoopResultBuilder]: At program point L651-2(lines 651 658) the Hoare annotation is: true [2021-11-23 03:44:03,367 INFO L854 garLoopResultBuilder]: At program point L742(line 742) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 03:44:03,367 INFO L861 garLoopResultBuilder]: At program point L771(lines 710 775) the Hoare annotation is: true [2021-11-23 03:44:03,367 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 03:44:03,368 INFO L858 garLoopResultBuilder]: For program point L730(lines 730 736) no Hoare annotation was computed. [2021-11-23 03:44:03,368 INFO L858 garLoopResultBuilder]: For program point L730-1(lines 730 736) no Hoare annotation was computed. [2021-11-23 03:44:03,368 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:44:03,368 INFO L854 garLoopResultBuilder]: At program point L768(lines 719 769) the Hoare annotation is: false [2021-11-23 03:44:03,368 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2021-11-23 03:44:03,368 INFO L854 garLoopResultBuilder]: At program point L740-1(lines 740 746) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 03:44:03,369 INFO L854 garLoopResultBuilder]: At program point L765(lines 720 767) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2021-11-23 03:44:03,369 INFO L854 garLoopResultBuilder]: At program point L732(line 732) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~4#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2021-11-23 03:44:03,369 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 814 838) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= ~waterLevel~0 2))))) [2021-11-23 03:44:03,370 INFO L854 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not .cse1)) (or .cse2 .cse0 (and (= ~pumpRunning~0 0) .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) (not (<= ~waterLevel~0 2))) (let ((.cse8 (select |#memory_int| 1)) (.cse7 (select |#memory_int| 27)) (.cse5 (select |#memory_int| 19)) (.cse10 (select |#memory_int| 18)) (.cse14 (select |#memory_int| 23)) (.cse13 (select |#memory_int| 25)) (.cse11 (select |#memory_int| 20)) (.cse3 (select |#memory_int| 26)) (.cse9 (select |#memory_int| 22)) (.cse12 (select |#memory_int| 17)) (.cse4 (select |#memory_int| 24)) (.cse6 (select |#memory_int| 28))) (or (not (= (select .cse3 2) 102)) (not (= ~waterLevel~0 1)) (not (= (select |#valid| 23) 1)) (not (= (select .cse4 1) 80)) (not (= (select .cse5 1) 75)) (not (= (select .cse6 0) 10)) (not (= (select |#length| 12) 25)) (not (= (select .cse7 1) 32)) .cse2 (not (= (select .cse8 0) 48)) (not (= (select .cse9 0) 79)) (not (= |#NULL.offset| 0)) (not (= 9 (select |#length| 11))) (not (= 2 (select |#length| 20))) (not (= (select |#valid| 26) 1)) (not (= (select |#length| 27) 3)) (not (= 67 (select .cse10 0))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= 3 (select |#length| 25))) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= (select .cse10 2) 73)) (not (= (select |#length| 17) 7)) (not (= 2 (select |#length| 1))) (not (= 4 (select |#length| 26))) (not (= (select .cse11 0) 41)) (not (= (select .cse10 4) 0)) (not (= (select |#length| 21) 13)) (not (= 9 (select |#length| 14))) .cse0 (not (= (select |#length| 15) 25)) (not (= 84 (select .cse10 3))) (not (= 77 (select .cse12 1))) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select .cse13 1) 110)) (not (= (select .cse12 6) 0)) (not (= (select .cse3 1) 102)) (not (= (select |#valid| 3) 1)) (not (= 110 (select .cse9 1))) (not (= (select |#valid| 25) 1)) (not (= ~head~0.offset 0)) (not (= (select |#valid| 20) 1)) (not (= (select |#valid| 21) 1)) (not (= (select |#valid| 11) 1)) (not (= (select |#valid| 16) 1)) (not (= 7 (select |#length| 24))) (not (= (select .cse12 5) 58)) (not (= (select |#valid| 28) 1)) (not (= (select |#length| 19) 3)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) (not (= ~methaneLevelCritical~0 0)) (not (= (select |#valid| 27) 1)) (not (= (select .cse8 1) 0)) (not (= (select |#valid| 24) 1)) (not (= (select .cse4 6) 0)) (not (= (select |#valid| 19) 1)) (not (= (select |#length| 28) 2)) (not (= (select .cse14 3) 0)) (not (= (select |#valid| 1) 1)) (not (= (select .cse12 4) 104)) (not (= (select |#valid| 22) 1)) (not (= 102 (select .cse14 2))) (not (= (select .cse5 0) 79)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (not (= 13 (select |#length| 16))) (not (= (select |#valid| 8) 1)) (not (= 44 (select .cse4 0))) (not (= 41 (select .cse7 0))) (not (= 58 (select .cse4 5))) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) (not (= (select .cse7 2) 0)) (not (= |#NULL.base| 0)) (not (= 5 (select |#length| 18))) (not (= (select |#length| 22) 3)) (not (= (select .cse3 3) 0)) (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= 4 (select |#length| 23))) (not (= (select .cse13 0) 79)) (not (= (select |#valid| 14) 1)) (not (= 101 (select .cse12 2))) (not (= (select .cse5 2) 0)) (not (= 82 (select .cse10 1))) (not (= (select .cse14 0) 79)) (not (= (select |#valid| 13) 1)) (not (= 102 (select .cse14 1))) (not (= 117 (select .cse4 2))) (not (= (select .cse13 2) 0)) (not (= 116 (select .cse12 3))) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select .cse11 1) 0)) (not (= 79 (select .cse3 0))) (not (= (select |#valid| 17) 1)) (not (= (select |#valid| 9) 1)) (not (= (select .cse9 2) 0)) (not (= 44 (select .cse12 0))) (not (= 112 (select .cse4 4))) (not (= ~head~0.base 0)) (not (= 109 (select .cse4 3))) (not (= (select .cse6 1) 0)) (not (= ~cleanupTimeShifts~0 4)) (not (= (select |#valid| 18) 1)))))) [2021-11-23 03:44:03,371 INFO L854 garLoopResultBuilder]: At program point L822(lines 822 830) the Hoare annotation is: (let ((.cse5 (not (<= ~waterLevel~0 2))) (.cse14 (<= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |#NULL.offset| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~head~0.offset 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1|)) (.cse8 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1|)) (.cse9 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~retValue_acc~12#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse10 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|)) (.cse11 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1|)) (.cse6 (not (= |#NULL.base| 0))) (.cse12 (not (= ~head~0.base 0))) (.cse13 (not (= ~cleanupTimeShifts~0 4)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0)) .cse4 .cse5 .cse6 (and .cse7 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~8#1| 0) .cse8 .cse9 .cse10 .cse11) (not (<= 0 |#StackHeapBarrier|)) .cse12 .cse13) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (not .cse14)) (or .cse0 .cse2 (not (< ~waterLevel~0 2)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)) (or .cse0 .cse2 .cse5 (and (= ~pumpRunning~0 0) (or .cse14 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 1)))) (let ((.cse20 (select |#memory_int| 1)) (.cse19 (select |#memory_int| 27)) (.cse17 (select |#memory_int| 19)) (.cse22 (select |#memory_int| 18)) (.cse26 (select |#memory_int| 23)) (.cse25 (select |#memory_int| 25)) (.cse23 (select |#memory_int| 20)) (.cse15 (select |#memory_int| 26)) (.cse21 (select |#memory_int| 22)) (.cse24 (select |#memory_int| 17)) (.cse16 (select |#memory_int| 24)) (.cse18 (select |#memory_int| 28))) (or (not (= (select .cse15 2) 102)) (not (= ~waterLevel~0 1)) (not (= (select |#valid| 23) 1)) (not (= (select .cse16 1) 80)) (not (= (select .cse17 1) 75)) (not (= (select .cse18 0) 10)) (not (= (select |#length| 12) 25)) (not (= (select .cse19 1) 32)) .cse0 (not (= (select .cse20 0) 48)) (not (= (select .cse21 0) 79)) .cse1 (not (= 9 (select |#length| 11))) (not (= 2 (select |#length| 20))) (not (= (select |#valid| 26) 1)) (not (= (select |#length| 27) 3)) (not (= 67 (select .cse22 0))) (not (= 9 (select |#length| 5))) (not (= 30 (select |#length| 7))) (not (= 3 (select |#length| 25))) (not (= 31 (select |#length| 2))) (not (= (select |#valid| 12) 1)) (not (= (select .cse22 2) 73)) (not (= (select |#length| 17) 7)) (not (= 2 (select |#length| 1))) (not (= 4 (select |#length| 26))) (not (= (select .cse23 0) 41)) (not (= (select .cse22 4) 0)) (not (= (select |#length| 21) 13)) (not (= 9 (select |#length| 14))) .cse2 (not (= (select |#length| 15) 25)) (not (= 84 (select .cse22 3))) (not (= 77 (select .cse24 1))) (not (= (select |#valid| 6) 1)) (not (< 0 |#StackHeapBarrier|)) (not (= (select .cse25 1) 110)) (not (= (select .cse24 6) 0)) (not (= (select .cse15 1) 102)) (not (= (select |#valid| 3) 1)) (not (= 110 (select .cse21 1))) (not (= (select |#valid| 25) 1)) .cse3 (not (= (select |#valid| 20) 1)) (not (= (select |#valid| 21) 1)) (not (= (select |#valid| 11) 1)) (not (= (select |#valid| 16) 1)) (not (= 7 (select |#length| 24))) (not (= (select .cse24 5) 58)) (not (= (select |#valid| 28) 1)) (not (= (select |#length| 19) 3)) (not (= (select |#length| 9) 21)) (not (= 30 (select |#length| 10))) (not (= (select |#valid| 15) 1)) (not (= (select |#length| 6) 21)) (not (= 1 (select |#valid| 5))) (not (= (select |#length| 8) 9)) (not (= (select |#length| 3) 12)) (not (= (select |#valid| 0) 0)) .cse4 (not (= (select |#valid| 27) 1)) (not (= (select .cse20 1) 0)) (not (= (select |#valid| 24) 1)) (not (= (select .cse16 6) 0)) (not (= (select |#valid| 19) 1)) (not (= (select |#length| 28) 2)) (not (= (select .cse26 3) 0)) (not (= (select |#valid| 1) 1)) (not (= (select .cse24 4) 104)) (not (= (select |#valid| 22) 1)) (not (= 102 (select .cse26 2))) (not (= (select .cse17 0) 79)) (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_~retValue_acc~5#1| 1) .cse7 .cse8 .cse9 .cse10 .cse11) (not (= 13 (select |#length| 16))) (not (= (select |#valid| 8) 1)) (not (= 44 (select .cse16 0))) (not (= 41 (select .cse19 0))) (not (= 58 (select .cse16 5))) (not (= 30 (select |#length| 13))) (not (= (select |#valid| 4) 1)) (not (= (select .cse19 2) 0)) .cse6 (not (= 5 (select |#length| 18))) (not (= (select |#length| 22) 3)) (not (= (select .cse15 3) 0)) (not (= (select |#valid| 7) 1)) (not (= (select |#valid| 10) 1)) (not (= 4 (select |#length| 23))) (not (= (select .cse25 0) 79)) (not (= (select |#valid| 14) 1)) (not (= 101 (select .cse24 2))) (not (= (select .cse17 2) 0)) (not (= 82 (select .cse22 1))) (not (= (select .cse26 0) 79)) (not (= (select |#valid| 13) 1)) (not (= 102 (select .cse26 1))) (not (= 117 (select .cse16 2))) (not (= (select .cse25 2) 0)) (not (= 116 (select .cse24 3))) (not (= 30 (select |#length| 4))) (not (= (select |#valid| 2) 1)) (not (= (select .cse23 1) 0)) (not (= 79 (select .cse15 0))) (not (= (select |#valid| 17) 1)) (not (= (select |#valid| 9) 1)) (not (= (select .cse21 2) 0)) (not (= 44 (select .cse24 0))) (not (= 112 (select .cse16 4))) .cse12 (not (= 109 (select .cse16 3))) (not (= (select .cse18 1) 0)) .cse13 (not (= (select |#valid| 18) 1)))))) [2021-11-23 03:44:03,371 INFO L854 garLoopResultBuilder]: At program point L818(lines 818 835) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (<= ~waterLevel~0 2))))) [2021-11-23 03:44:03,371 INFO L854 garLoopResultBuilder]: At program point L833(line 833) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= ~waterLevel~0 2))))) [2021-11-23 03:44:03,371 INFO L858 garLoopResultBuilder]: For program point L833-1(lines 814 838) no Hoare annotation was computed. [2021-11-23 03:44:03,372 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 814 838) no Hoare annotation was computed. [2021-11-23 03:44:03,372 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 474 485) no Hoare annotation was computed. [2021-11-23 03:44:03,372 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 474 485) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= ~pumpRunning~0 1)) .cse1 .cse2) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2))) [2021-11-23 03:44:03,375 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:44:03,376 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:44:03,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:44:03 BoogieIcfgContainer [2021-11-23 03:44:03,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:44:03,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:44:03,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:44:03,443 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:44:03,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:54" (3/4) ... [2021-11-23 03:44:03,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:44:03,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 03:44:03,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 03:44:03,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 03:44:03,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 03:44:03,452 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-11-23 03:44:03,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-23 03:44:03,453 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 03:44:03,462 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 76 nodes and edges [2021-11-23 03:44:03,463 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-23 03:44:03,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 03:44:03,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:44:03,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:44:03,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:44:03,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:44:03,489 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && unknown-#memory_int-unknown[19][0] == 79) && unknown-#memory_int-unknown[17][6] == 0) && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && 2 == unknown-#length-unknown[20]) && \valid[15] == 1) && unknown-#memory_int-unknown[22][0] == 79) && 5 == unknown-#length-unknown[18]) && pumpRunning == 0) && \valid[26] == 1) && unknown-#memory_int-unknown[27][2] == 0) && unknown-#memory_int-unknown[26][3] == 0) && \valid[9] == 1) && 13 == unknown-#length-unknown[16]) && unknown-#length-unknown[12] == 25) && unknown-#memory_int-unknown[18][2] == 73) && unknown-#length-unknown[28] == 2) && \valid[11] == 1) && \valid[27] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && unknown-#length-unknown[22] == 3) && 4 == unknown-#length-unknown[26]) && 102 == unknown-#memory_int-unknown[23][1]) && 31 == unknown-#length-unknown[2]) && head == 0) && unknown-#length-unknown[21] == 13) && unknown-#length-unknown[27] == 3) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && 84 == unknown-#memory_int-unknown[18][3]) && 41 == unknown-#memory_int-unknown[27][0]) && \valid[3] == 1) && unknown-#length-unknown[19] == 3) && \valid[7] == 1) && \valid[18] == 1) && \valid[22] == 1) && 30 == unknown-#length-unknown[13]) && 117 == unknown-#memory_int-unknown[24][2]) && 1 == systemActive) && \valid[24] == 1) && 30 == unknown-#length-unknown[10]) && unknown-#memory_int-unknown[19][2] == 0) && 3 == unknown-#length-unknown[25]) && tmp == 1) && \valid[12] == 1) && \result == tmp) && 82 == unknown-#memory_int-unknown[18][1]) && unknown-#memory_int-unknown[25][1] == 110) && \valid[28] == 1) && unknown-#memory_int-unknown[25][2] == 0) && 102 == unknown-#memory_int-unknown[23][2]) && unknown-#memory_int-unknown[28][1] == 0) && \valid[4] == 1) && unknown-#memory_int-unknown[22][2] == 0) && \valid[1] == 1) && \valid[20] == 1) && unknown-#length-unknown[6] == 21) && \valid[21] == 1) && 7 == unknown-#length-unknown[24]) && 58 == unknown-#memory_int-unknown[24][5]) && unknown-#memory_int-unknown[24][1] == 80) && unknown-#memory_int-unknown[26][2] == 102) && unknown-#memory_int-unknown[24][6] == 0) && unknown-#memory_int-unknown[18][4] == 0) && \valid[14] == 1) && 109 == unknown-#memory_int-unknown[24][3]) && 77 == unknown-#memory_int-unknown[17][1]) && 110 == unknown-#memory_int-unknown[22][1]) && 9 == unknown-#length-unknown[14]) && unknown-#memory_int-unknown[17][4] == 104) && \valid[0] == 0) && 79 == unknown-#memory_int-unknown[26][0]) && unknown-#memory_int-unknown[28][0] == 10) && \valid[25] == 1) && head == 0) && 112 == unknown-#memory_int-unknown[24][4]) && unknown-#memory_int-unknown[23][3] == 0) && 116 == unknown-#memory_int-unknown[17][3]) && \valid[2] == 1) && unknown-#memory_int-unknown[20][0] == 41) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && 44 == unknown-#memory_int-unknown[24][0]) && waterLevel == 1) && unknown-#memory_int-unknown[26][1] == 102) && unknown-#memory_int-unknown[1][0] == 48) && 67 == unknown-#memory_int-unknown[18][0]) && \valid[23] == 1) && 4 == unknown-#length-unknown[23]) && unknown-#memory_int-unknown[23][0] == 79) && unknown-#memory_int-unknown[27][1] == 32) && 101 == unknown-#memory_int-unknown[17][2]) && \valid[19] == 1) && unknown-#memory_int-unknown[19][1] == 75) && unknown-#memory_int-unknown[20][1] == 0) && 44 == unknown-#memory_int-unknown[17][0]) && \valid[16] == 1) && \valid[6] == 1) && retValue_acc == \result) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#length-unknown[17] == 7) && \valid[17] == 1) && \valid[10] == 1) && \valid[8] == 1) && unknown-#memory_int-unknown[17][5] == 58) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) && unknown-#memory_int-unknown[25][0] == 79 [2021-11-23 03:44:03,490 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) [2021-11-23 03:44:03,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) [2021-11-23 03:44:03,491 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) [2021-11-23 03:44:03,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) [2021-11-23 03:44:03,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || (tmp <= 0 && 0 <= tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) [2021-11-23 03:44:03,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (((retValue_acc == \result && retValue_acc == waterLevel) && \result == tmp___0) && tmp == 0)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) || ((waterLevel <= 1 && 1 == systemActive) && pumpRunning == 1)) [2021-11-23 03:44:03,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (((tmp___0 < 2 && (!(\old(pumpRunning) == 0) || (\old(waterLevel) <= tmp___0 && tmp___0 <= 2))) && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) || (\old(waterLevel) <= tmp___0 && tmp___0 <= 2)) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && tmp___0 <= 1)) || !(\old(pumpRunning) == 1)) || ((waterLevel <= 1 && tmp___0 <= 1) && pumpRunning == 1)) || !(\old(waterLevel) <= 2))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((retValue_acc == waterLevel && \result == tmp___0) && tmp == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) [2021-11-23 03:44:03,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) [2021-11-23 03:44:03,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) [2021-11-23 03:44:03,494 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || !(#NULL == 0)) || (((((\result == tmp && tmp == 0) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel < 2)) || tmp == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || (pumpRunning == 0 && (waterLevel <= 1 || tmp == 1)))) && ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((!(unknown-#memory_int-unknown[26][2] == 102) || !(waterLevel == 1)) || !(\valid[23] == 1)) || !(unknown-#memory_int-unknown[24][1] == 80)) || !(unknown-#memory_int-unknown[19][1] == 75)) || !(unknown-#memory_int-unknown[28][0] == 10)) || !(unknown-#length-unknown[12] == 25)) || !(unknown-#memory_int-unknown[27][1] == 32)) || !(\old(pumpRunning) == 0)) || !(unknown-#memory_int-unknown[1][0] == 48)) || !(unknown-#memory_int-unknown[22][0] == 79)) || !(#NULL == 0)) || !(9 == unknown-#length-unknown[11])) || !(2 == unknown-#length-unknown[20])) || !(\valid[26] == 1)) || !(unknown-#length-unknown[27] == 3)) || !(67 == unknown-#memory_int-unknown[18][0])) || !(9 == unknown-#length-unknown[5])) || !(30 == unknown-#length-unknown[7])) || !(3 == unknown-#length-unknown[25])) || !(31 == unknown-#length-unknown[2])) || !(\valid[12] == 1)) || !(unknown-#memory_int-unknown[18][2] == 73)) || !(unknown-#length-unknown[17] == 7)) || !(2 == unknown-#length-unknown[1])) || !(4 == unknown-#length-unknown[26])) || !(unknown-#memory_int-unknown[20][0] == 41)) || !(unknown-#memory_int-unknown[18][4] == 0)) || !(unknown-#length-unknown[21] == 13)) || !(9 == unknown-#length-unknown[14])) || !(1 == systemActive)) || !(unknown-#length-unknown[15] == 25)) || !(84 == unknown-#memory_int-unknown[18][3])) || !(77 == unknown-#memory_int-unknown[17][1])) || !(\valid[6] == 1)) || !(0 < unknown-#StackHeapBarrier-unknown)) || !(unknown-#memory_int-unknown[25][1] == 110)) || !(unknown-#memory_int-unknown[17][6] == 0)) || !(unknown-#memory_int-unknown[26][1] == 102)) || !(\valid[3] == 1)) || !(110 == unknown-#memory_int-unknown[22][1])) || !(\valid[25] == 1)) || !(head == 0)) || !(\valid[20] == 1)) || !(\valid[21] == 1)) || !(\valid[11] == 1)) || !(\valid[16] == 1)) || !(7 == unknown-#length-unknown[24])) || !(unknown-#memory_int-unknown[17][5] == 58)) || !(\valid[28] == 1)) || !(unknown-#length-unknown[19] == 3)) || !(unknown-#length-unknown[9] == 21)) || !(30 == unknown-#length-unknown[10])) || !(\valid[15] == 1)) || !(unknown-#length-unknown[6] == 21)) || !(1 == \valid[5])) || !(unknown-#length-unknown[8] == 9)) || !(unknown-#length-unknown[3] == 12)) || !(\valid[0] == 0)) || !(methaneLevelCritical == 0)) || !(\valid[27] == 1)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[24] == 1)) || !(unknown-#memory_int-unknown[24][6] == 0)) || !(\valid[19] == 1)) || !(unknown-#length-unknown[28] == 2)) || !(unknown-#memory_int-unknown[23][3] == 0)) || !(\valid[1] == 1)) || !(unknown-#memory_int-unknown[17][4] == 104)) || !(\valid[22] == 1)) || !(102 == unknown-#memory_int-unknown[23][2])) || !(unknown-#memory_int-unknown[19][0] == 79)) || (((((retValue_acc == 1 && \result == tmp) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(13 == unknown-#length-unknown[16])) || !(\valid[8] == 1)) || !(44 == unknown-#memory_int-unknown[24][0])) || !(41 == unknown-#memory_int-unknown[27][0])) || !(58 == unknown-#memory_int-unknown[24][5])) || !(30 == unknown-#length-unknown[13])) || !(\valid[4] == 1)) || !(unknown-#memory_int-unknown[27][2] == 0)) || !(#NULL == 0)) || !(5 == unknown-#length-unknown[18])) || !(unknown-#length-unknown[22] == 3)) || !(unknown-#memory_int-unknown[26][3] == 0)) || !(\valid[7] == 1)) || !(\valid[10] == 1)) || !(4 == unknown-#length-unknown[23])) || !(unknown-#memory_int-unknown[25][0] == 79)) || !(\valid[14] == 1)) || !(101 == unknown-#memory_int-unknown[17][2])) || !(unknown-#memory_int-unknown[19][2] == 0)) || !(82 == unknown-#memory_int-unknown[18][1])) || !(unknown-#memory_int-unknown[23][0] == 79)) || !(\valid[13] == 1)) || !(102 == unknown-#memory_int-unknown[23][1])) || !(117 == unknown-#memory_int-unknown[24][2])) || !(unknown-#memory_int-unknown[25][2] == 0)) || !(116 == unknown-#memory_int-unknown[17][3])) || !(30 == unknown-#length-unknown[4])) || !(\valid[2] == 1)) || !(unknown-#memory_int-unknown[20][1] == 0)) || !(79 == unknown-#memory_int-unknown[26][0])) || !(\valid[17] == 1)) || !(\valid[9] == 1)) || !(unknown-#memory_int-unknown[22][2] == 0)) || !(44 == unknown-#memory_int-unknown[17][0])) || !(112 == unknown-#memory_int-unknown[24][4])) || !(head == 0)) || !(109 == unknown-#memory_int-unknown[24][3])) || !(unknown-#memory_int-unknown[28][1] == 0)) || !(cleanupTimeShifts == 4)) || !(\valid[18] == 1)) [2021-11-23 03:44:03,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:44:03,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:44:03,523 INFO L158 Benchmark]: Toolchain (without parser) took 70329.50ms. Allocated memory was 94.4MB in the beginning and 408.9MB in the end (delta: 314.6MB). Free memory was 57.7MB in the beginning and 279.1MB in the end (delta: -221.4MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,524 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:44:03,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 711.49ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 60.3MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.87ms. Allocated memory is still 94.4MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,525 INFO L158 Benchmark]: Boogie Preprocessor took 68.43ms. Allocated memory is still 94.4MB. Free memory was 57.8MB in the beginning and 56.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:44:03,525 INFO L158 Benchmark]: RCFGBuilder took 713.26ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 34.7MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,525 INFO L158 Benchmark]: TraceAbstraction took 68673.82ms. Allocated memory was 94.4MB in the beginning and 408.9MB in the end (delta: 314.6MB). Free memory was 34.3MB in the beginning and 286.4MB in the end (delta: -252.1MB). Peak memory consumption was 218.6MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,526 INFO L158 Benchmark]: Witness Printer took 79.55ms. Allocated memory is still 408.9MB. Free memory was 286.4MB in the beginning and 279.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:44:03,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 69.5MB in the beginning and 69.4MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 711.49ms. Allocated memory is still 94.4MB. Free memory was 57.5MB in the beginning and 60.3MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.87ms. Allocated memory is still 94.4MB. Free memory was 60.3MB in the beginning and 57.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.43ms. Allocated memory is still 94.4MB. Free memory was 57.8MB in the beginning and 56.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 713.26ms. Allocated memory is still 94.4MB. Free memory was 56.1MB in the beginning and 34.7MB in the end (delta: 21.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 68673.82ms. Allocated memory was 94.4MB in the beginning and 408.9MB in the end (delta: 314.6MB). Free memory was 34.3MB in the beginning and 286.4MB in the end (delta: -252.1MB). Peak memory consumption was 218.6MB. Max. memory is 16.1GB. * Witness Printer took 79.55ms. Allocated memory is still 408.9MB. Free memory was 286.4MB in the beginning and 279.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 704]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.5s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 18.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1120 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1091 mSDsluCounter, 2102 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1747 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2633 IncrementalHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 658 mSDtfsCounter, 2633 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 621 GetRequests, 443 SyntacticMatches, 16 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 30.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=12, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 229 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 980 PreInvPairs, 1087 NumberOfFragments, 3417 HoareAnnotationTreeSize, 980 FomulaSimplifications, 3575 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 35 FomulaSimplificationsInter, 63722 FormulaSimplificationTreeSizeReductionInter, 17.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 876 ConstructedInterpolants, 0 QuantifiedInterpolants, 2752 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1753 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 279/322 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: OVERALL_TIME: 9.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 64, DAG_INTERPRETER_EARLY_EXITS: 7, TOOLS_POST_APPLICATIONS: 85, TOOLS_POST_TIME: 2.9s, TOOLS_POST_CALL_APPLICATIONS: 32, TOOLS_POST_CALL_TIME: 3.1s, TOOLS_POST_RETURN_APPLICATIONS: 26, TOOLS_POST_RETURN_TIME: 2.5s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 141, TOOLS_QUANTIFIERELIM_TIME: 8.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 191, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 22, DOMAIN_JOIN_TIME: 0.6s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 64, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME: 5.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 26, CALL_SUMMARIZER_CACHE_MISSES: 7, CALL_SUMMARIZER_OVERALL_TIME: 0.3s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 823, DAG_COMPRESSION_RETAINED_NODES: 203, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || (((retValue_acc == \result && retValue_acc == waterLevel) && \result == tmp___0) && tmp == 0)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel)))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) || ((waterLevel <= 1 && 1 == systemActive) && pumpRunning == 1)) - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) || ((((1 == systemActive && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 782]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: ((((((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(2 <= waterLevel)) || !(methaneLevelCritical == 0)) || !(waterLevel <= 2)) || !(#NULL == 0)) || (((((\result == tmp && tmp == 0) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(head == 0)) || !(cleanupTimeShifts == 4)) && ((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel < 2)) || tmp == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || (pumpRunning == 0 && (waterLevel <= 1 || tmp == 1)))) && ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((!(unknown-#memory_int-unknown[26][2] == 102) || !(waterLevel == 1)) || !(\valid[23] == 1)) || !(unknown-#memory_int-unknown[24][1] == 80)) || !(unknown-#memory_int-unknown[19][1] == 75)) || !(unknown-#memory_int-unknown[28][0] == 10)) || !(unknown-#length-unknown[12] == 25)) || !(unknown-#memory_int-unknown[27][1] == 32)) || !(\old(pumpRunning) == 0)) || !(unknown-#memory_int-unknown[1][0] == 48)) || !(unknown-#memory_int-unknown[22][0] == 79)) || !(#NULL == 0)) || !(9 == unknown-#length-unknown[11])) || !(2 == unknown-#length-unknown[20])) || !(\valid[26] == 1)) || !(unknown-#length-unknown[27] == 3)) || !(67 == unknown-#memory_int-unknown[18][0])) || !(9 == unknown-#length-unknown[5])) || !(30 == unknown-#length-unknown[7])) || !(3 == unknown-#length-unknown[25])) || !(31 == unknown-#length-unknown[2])) || !(\valid[12] == 1)) || !(unknown-#memory_int-unknown[18][2] == 73)) || !(unknown-#length-unknown[17] == 7)) || !(2 == unknown-#length-unknown[1])) || !(4 == unknown-#length-unknown[26])) || !(unknown-#memory_int-unknown[20][0] == 41)) || !(unknown-#memory_int-unknown[18][4] == 0)) || !(unknown-#length-unknown[21] == 13)) || !(9 == unknown-#length-unknown[14])) || !(1 == systemActive)) || !(unknown-#length-unknown[15] == 25)) || !(84 == unknown-#memory_int-unknown[18][3])) || !(77 == unknown-#memory_int-unknown[17][1])) || !(\valid[6] == 1)) || !(0 < unknown-#StackHeapBarrier-unknown)) || !(unknown-#memory_int-unknown[25][1] == 110)) || !(unknown-#memory_int-unknown[17][6] == 0)) || !(unknown-#memory_int-unknown[26][1] == 102)) || !(\valid[3] == 1)) || !(110 == unknown-#memory_int-unknown[22][1])) || !(\valid[25] == 1)) || !(head == 0)) || !(\valid[20] == 1)) || !(\valid[21] == 1)) || !(\valid[11] == 1)) || !(\valid[16] == 1)) || !(7 == unknown-#length-unknown[24])) || !(unknown-#memory_int-unknown[17][5] == 58)) || !(\valid[28] == 1)) || !(unknown-#length-unknown[19] == 3)) || !(unknown-#length-unknown[9] == 21)) || !(30 == unknown-#length-unknown[10])) || !(\valid[15] == 1)) || !(unknown-#length-unknown[6] == 21)) || !(1 == \valid[5])) || !(unknown-#length-unknown[8] == 9)) || !(unknown-#length-unknown[3] == 12)) || !(\valid[0] == 0)) || !(methaneLevelCritical == 0)) || !(\valid[27] == 1)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[24] == 1)) || !(unknown-#memory_int-unknown[24][6] == 0)) || !(\valid[19] == 1)) || !(unknown-#length-unknown[28] == 2)) || !(unknown-#memory_int-unknown[23][3] == 0)) || !(\valid[1] == 1)) || !(unknown-#memory_int-unknown[17][4] == 104)) || !(\valid[22] == 1)) || !(102 == unknown-#memory_int-unknown[23][2])) || !(unknown-#memory_int-unknown[19][0] == 79)) || (((((retValue_acc == 1 && \result == tmp) && retValue_acc == tmp___0) && retValue_acc == \result) && retValue_acc == \result) && tmp == \result)) || !(13 == unknown-#length-unknown[16])) || !(\valid[8] == 1)) || !(44 == unknown-#memory_int-unknown[24][0])) || !(41 == unknown-#memory_int-unknown[27][0])) || !(58 == unknown-#memory_int-unknown[24][5])) || !(30 == unknown-#length-unknown[13])) || !(\valid[4] == 1)) || !(unknown-#memory_int-unknown[27][2] == 0)) || !(#NULL == 0)) || !(5 == unknown-#length-unknown[18])) || !(unknown-#length-unknown[22] == 3)) || !(unknown-#memory_int-unknown[26][3] == 0)) || !(\valid[7] == 1)) || !(\valid[10] == 1)) || !(4 == unknown-#length-unknown[23])) || !(unknown-#memory_int-unknown[25][0] == 79)) || !(\valid[14] == 1)) || !(101 == unknown-#memory_int-unknown[17][2])) || !(unknown-#memory_int-unknown[19][2] == 0)) || !(82 == unknown-#memory_int-unknown[18][1])) || !(unknown-#memory_int-unknown[23][0] == 79)) || !(\valid[13] == 1)) || !(102 == unknown-#memory_int-unknown[23][1])) || !(117 == unknown-#memory_int-unknown[24][2])) || !(unknown-#memory_int-unknown[25][2] == 0)) || !(116 == unknown-#memory_int-unknown[17][3])) || !(30 == unknown-#length-unknown[4])) || !(\valid[2] == 1)) || !(unknown-#memory_int-unknown[20][1] == 0)) || !(79 == unknown-#memory_int-unknown[26][0])) || !(\valid[17] == 1)) || !(\valid[9] == 1)) || !(unknown-#memory_int-unknown[22][2] == 0)) || !(44 == unknown-#memory_int-unknown[17][0])) || !(112 == unknown-#memory_int-unknown[24][4])) || !(head == 0)) || !(109 == unknown-#memory_int-unknown[24][3])) || !(unknown-#memory_int-unknown[28][1] == 0)) || !(cleanupTimeShifts == 4)) || !(\valid[18] == 1)) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 435]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (((tmp___0 < 2 && (!(\old(pumpRunning) == 0) || (\old(waterLevel) <= tmp___0 && tmp___0 <= 2))) && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel)) || !(1 == systemActive)) || (((!(\old(pumpRunning) == 0) || (\old(waterLevel) <= tmp___0 && tmp___0 <= 2)) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2))) && ((((!(1 == systemActive) || ((pumpRunning == 0 && waterLevel <= 1) && tmp___0 <= 1)) || !(\old(pumpRunning) == 1)) || ((waterLevel <= 1 && tmp___0 <= 1) && pumpRunning == 1)) || !(\old(waterLevel) <= 2))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || ((retValue_acc == waterLevel && \result == tmp___0) && tmp == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || (pumpRunning == 0 && waterLevel <= 1)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 2)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && \old(waterLevel) <= waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel)))) && (((((((((((!(\old(pumpRunning) == 0) || !(#NULL == 0)) || !(1 == systemActive)) || !(head == 0)) || (tmp <= 0 && 0 <= tmp)) || !(methaneLevelCritical == 0)) || !(#NULL == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown)) || !(\old(waterLevel) <= 2)) || !(head == 0)) || !(cleanupTimeShifts == 4)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || (waterLevel <= 1 && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 740]: Loop Invariant Derived loop invariant: ((((1 == systemActive && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1) || ((((pumpRunning == 0 && 1 == systemActive) && tmp == 1) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((unknown-#length-unknown[15] == 25 && unknown-#memory_int-unknown[19][0] == 79) && unknown-#memory_int-unknown[17][6] == 0) && 9 == unknown-#length-unknown[5]) && unknown-#length-unknown[9] == 21) && 30 == unknown-#length-unknown[7]) && 1 == \valid[5]) && unknown-#length-unknown[3] == 12) && 2 == unknown-#length-unknown[20]) && \valid[15] == 1) && unknown-#memory_int-unknown[22][0] == 79) && 5 == unknown-#length-unknown[18]) && pumpRunning == 0) && \valid[26] == 1) && unknown-#memory_int-unknown[27][2] == 0) && unknown-#memory_int-unknown[26][3] == 0) && \valid[9] == 1) && 13 == unknown-#length-unknown[16]) && unknown-#length-unknown[12] == 25) && unknown-#memory_int-unknown[18][2] == 73) && unknown-#length-unknown[28] == 2) && \valid[11] == 1) && \valid[27] == 1) && methaneLevelCritical == 0) && 30 == unknown-#length-unknown[4]) && unknown-#length-unknown[22] == 3) && 4 == unknown-#length-unknown[26]) && 102 == unknown-#memory_int-unknown[23][1]) && 31 == unknown-#length-unknown[2]) && head == 0) && unknown-#length-unknown[21] == 13) && unknown-#length-unknown[27] == 3) && 2 == unknown-#length-unknown[1]) && unknown-#length-unknown[8] == 9) && 84 == unknown-#memory_int-unknown[18][3]) && 41 == unknown-#memory_int-unknown[27][0]) && \valid[3] == 1) && unknown-#length-unknown[19] == 3) && \valid[7] == 1) && \valid[18] == 1) && \valid[22] == 1) && 30 == unknown-#length-unknown[13]) && 117 == unknown-#memory_int-unknown[24][2]) && 1 == systemActive) && \valid[24] == 1) && 30 == unknown-#length-unknown[10]) && unknown-#memory_int-unknown[19][2] == 0) && 3 == unknown-#length-unknown[25]) && tmp == 1) && \valid[12] == 1) && \result == tmp) && 82 == unknown-#memory_int-unknown[18][1]) && unknown-#memory_int-unknown[25][1] == 110) && \valid[28] == 1) && unknown-#memory_int-unknown[25][2] == 0) && 102 == unknown-#memory_int-unknown[23][2]) && unknown-#memory_int-unknown[28][1] == 0) && \valid[4] == 1) && unknown-#memory_int-unknown[22][2] == 0) && \valid[1] == 1) && \valid[20] == 1) && unknown-#length-unknown[6] == 21) && \valid[21] == 1) && 7 == unknown-#length-unknown[24]) && 58 == unknown-#memory_int-unknown[24][5]) && unknown-#memory_int-unknown[24][1] == 80) && unknown-#memory_int-unknown[26][2] == 102) && unknown-#memory_int-unknown[24][6] == 0) && unknown-#memory_int-unknown[18][4] == 0) && \valid[14] == 1) && 109 == unknown-#memory_int-unknown[24][3]) && 77 == unknown-#memory_int-unknown[17][1]) && 110 == unknown-#memory_int-unknown[22][1]) && 9 == unknown-#length-unknown[14]) && unknown-#memory_int-unknown[17][4] == 104) && \valid[0] == 0) && 79 == unknown-#memory_int-unknown[26][0]) && unknown-#memory_int-unknown[28][0] == 10) && \valid[25] == 1) && head == 0) && 112 == unknown-#memory_int-unknown[24][4]) && unknown-#memory_int-unknown[23][3] == 0) && 116 == unknown-#memory_int-unknown[17][3]) && \valid[2] == 1) && unknown-#memory_int-unknown[20][0] == 41) && #NULL == 0) && 9 == unknown-#length-unknown[11]) && 44 == unknown-#memory_int-unknown[24][0]) && waterLevel == 1) && unknown-#memory_int-unknown[26][1] == 102) && unknown-#memory_int-unknown[1][0] == 48) && 67 == unknown-#memory_int-unknown[18][0]) && \valid[23] == 1) && 4 == unknown-#length-unknown[23]) && unknown-#memory_int-unknown[23][0] == 79) && unknown-#memory_int-unknown[27][1] == 32) && 101 == unknown-#memory_int-unknown[17][2]) && \valid[19] == 1) && unknown-#memory_int-unknown[19][1] == 75) && unknown-#memory_int-unknown[20][1] == 0) && 44 == unknown-#memory_int-unknown[17][0]) && \valid[16] == 1) && \valid[6] == 1) && retValue_acc == \result) && unknown-#memory_int-unknown[1][1] == 0) && unknown-#length-unknown[17] == 7) && \valid[17] == 1) && \valid[10] == 1) && \valid[8] == 1) && unknown-#memory_int-unknown[17][5] == 58) && \valid[13] == 1) && 0 < unknown-#StackHeapBarrier-unknown) && cleanupTimeShifts == 4) && #NULL == 0) && unknown-#memory_int-unknown[25][0] == 79 - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:44:03,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2bddd26-e312-4730-88be-be9e125dcc1e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE