./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:02,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:02,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:12:02,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:02,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:02,927 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:02,928 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:02,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:02,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:02,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:02,936 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:02,937 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:02,937 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:02,939 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:12:02,940 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:02,940 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:02,941 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:12:02,941 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:12:02,942 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:02,943 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:12:02,943 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:12:02,944 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:12:02,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:02,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:02,946 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:02,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:12:02,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:02,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:02,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:02,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:02,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:02,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:02,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:02,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:02,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:02,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:02,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:02,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:02,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:02,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:02,953 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:12:02,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:12:02,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:02,954 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:02,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:02,955 INFO L153 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_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c [2023-11-19 04:12:03,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:03,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:03,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:03,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:03,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:03,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2023-11-19 04:12:06,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:06,773 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:06,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2023-11-19 04:12:06,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/data/0634e88b0/14a4797b15634f3a9e761c93fc4b7230/FLAG35a6b3d78 [2023-11-19 04:12:06,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/data/0634e88b0/14a4797b15634f3a9e761c93fc4b7230 [2023-11-19 04:12:06,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:06,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:06,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:06,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:06,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:06,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:06" (1/1) ... [2023-11-19 04:12:06,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b07a9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:06, skipping insertion in model container [2023-11-19 04:12:06,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:06" (1/1) ... [2023-11-19 04:12:06,916 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:07,146 WARN L240 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_2bf53237-a22a-4fb3-9880-88154f87a781/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c[1605,1618] [2023-11-19 04:12:07,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:07,335 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:07,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-19 04:12:07,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] [2023-11-19 04:12:07,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] [2023-11-19 04:12:07,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2023-11-19 04:12:07,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [593] [2023-11-19 04:12:07,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [791] [2023-11-19 04:12:07,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [817] [2023-11-19 04:12:07,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [855] [2023-11-19 04:12:07,356 WARN L240 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_2bf53237-a22a-4fb3-9880-88154f87a781/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c[1605,1618] [2023-11-19 04:12:07,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:07,468 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:07,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07 WrapperNode [2023-11-19 04:12:07,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:07,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:07,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:07,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:07,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,509 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,537 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 166 [2023-11-19 04:12:07,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:07,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:07,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:07,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:07,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,579 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:07,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:07,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:07,580 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:07,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (1/1) ... [2023-11-19 04:12:07,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:07,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:07,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:07,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 04:12:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 04:12:07,669 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 04:12:07,669 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 04:12:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 04:12:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 04:12:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 04:12:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 04:12:07,671 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 04:12:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 04:12:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 04:12:07,672 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 04:12:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:12:07,672 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 04:12:07,673 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 04:12:07,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:07,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:07,750 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:07,753 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:08,026 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:08,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:08,133 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:12:08,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08 BoogieIcfgContainer [2023-11-19 04:12:08,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:08,142 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:08,143 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:08,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:08,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:06" (1/3) ... [2023-11-19 04:12:08,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442908b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:08, skipping insertion in model container [2023-11-19 04:12:08,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:07" (2/3) ... [2023-11-19 04:12:08,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442908b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:08, skipping insertion in model container [2023-11-19 04:12:08,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08" (3/3) ... [2023-11-19 04:12:08,150 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product28.cil.c [2023-11-19 04:12:08,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:08,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:12:08,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:08,279 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@565f331b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:08,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:12:08,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 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) [2023-11-19 04:12:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:12:08,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:08,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:08,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:08,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:08,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1581354436, now seen corresponding path program 1 times [2023-11-19 04:12:08,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:08,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567433168] [2023-11-19 04:12:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:08,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567433168] [2023-11-19 04:12:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567433168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:08,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:12:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955337141] [2023-11-19 04:12:08,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:08,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:12:08,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:12:08,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:12:08,566 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 43 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-19 04:12:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:08,669 INFO L93 Difference]: Finished difference Result 110 states and 149 transitions. [2023-11-19 04:12:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:12:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2023-11-19 04:12:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:08,684 INFO L225 Difference]: With dead ends: 110 [2023-11-19 04:12:08,684 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 04:12:08,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:12:08,696 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:08,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 04:12:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 04:12:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 39 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) [2023-11-19 04:12:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2023-11-19 04:12:08,747 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 16 [2023-11-19 04:12:08,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:08,748 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2023-11-19 04:12:08,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2023-11-19 04:12:08,749 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-19 04:12:08,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:12:08,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:08,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:08,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:12:08,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:08,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1136988605, now seen corresponding path program 1 times [2023-11-19 04:12:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:08,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105782253] [2023-11-19 04:12:08,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:08,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:08,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:08,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105782253] [2023-11-19 04:12:08,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105782253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:08,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:08,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:12:08,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001859245] [2023-11-19 04:12:08,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:08,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:08,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:08,966 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 04:12:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:09,018 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2023-11-19 04:12:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:09,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2023-11-19 04:12:09,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:09,020 INFO L225 Difference]: With dead ends: 74 [2023-11-19 04:12:09,020 INFO L226 Difference]: Without dead ends: 43 [2023-11-19 04:12:09,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:09,023 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:09,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 66 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:12:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-19 04:12:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-19 04:12:09,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 34 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) [2023-11-19 04:12:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2023-11-19 04:12:09,035 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2023-11-19 04:12:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:09,035 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2023-11-19 04:12:09,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-11-19 04:12:09,036 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2023-11-19 04:12:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:12:09,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:09,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:09,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:12:09,038 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:09,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 773547168, now seen corresponding path program 1 times [2023-11-19 04:12:09,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:09,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342946645] [2023-11-19 04:12:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:09,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:09,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:09,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342946645] [2023-11-19 04:12:09,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342946645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:09,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:09,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:09,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226943630] [2023-11-19 04:12:09,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:09,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:09,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:09,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:12:09,162 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2023-11-19 04:12:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:09,315 INFO L93 Difference]: Finished difference Result 117 states and 148 transitions. [2023-11-19 04:12:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:12:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2023-11-19 04:12:09,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:09,319 INFO L225 Difference]: With dead ends: 117 [2023-11-19 04:12:09,319 INFO L226 Difference]: Without dead ends: 76 [2023-11-19 04:12:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:09,321 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 77 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:09,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 105 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-19 04:12:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2023-11-19 04:12:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 57 states have internal predecessors, (65), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (14), 10 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 04:12:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2023-11-19 04:12:09,342 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 20 [2023-11-19 04:12:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:09,342 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2023-11-19 04:12:09,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2023-11-19 04:12:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2023-11-19 04:12:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:12:09,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:09,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:09,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:12:09,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:09,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:09,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1641870331, now seen corresponding path program 1 times [2023-11-19 04:12:09,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:09,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081392980] [2023-11-19 04:12:09,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:09,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:09,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:09,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081392980] [2023-11-19 04:12:09,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081392980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:09,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:09,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:12:09,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284364935] [2023-11-19 04:12:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:12:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:12:09,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:12:09,523 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:12:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:09,731 INFO L93 Difference]: Finished difference Result 211 states and 272 transitions. [2023-11-19 04:12:09,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:12:09,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 04:12:09,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:09,735 INFO L225 Difference]: With dead ends: 211 [2023-11-19 04:12:09,736 INFO L226 Difference]: Without dead ends: 140 [2023-11-19 04:12:09,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:12:09,741 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:09,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 178 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-19 04:12:09,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2023-11-19 04:12:09,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 104 states have internal predecessors, (119), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (26), 18 states have call predecessors, (26), 24 states have call successors, (26) [2023-11-19 04:12:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2023-11-19 04:12:09,827 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 23 [2023-11-19 04:12:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:09,828 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2023-11-19 04:12:09,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:12:09,829 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2023-11-19 04:12:09,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 04:12:09,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:09,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:09,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:12:09,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:09,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1165212493, now seen corresponding path program 1 times [2023-11-19 04:12:09,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:09,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128071661] [2023-11-19 04:12:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:09,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:10,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:10,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128071661] [2023-11-19 04:12:10,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128071661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:10,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:10,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:12:10,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193500154] [2023-11-19 04:12:10,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:10,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:12:10,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:10,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:12:10,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:12:10,055 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:12:10,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:10,123 INFO L93 Difference]: Finished difference Result 248 states and 317 transitions. [2023-11-19 04:12:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:12:10,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-19 04:12:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:10,124 INFO L225 Difference]: With dead ends: 248 [2023-11-19 04:12:10,124 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:12:10,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:12:10,131 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:10,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 53 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:12:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:12:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:12:10,135 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) [2023-11-19 04:12:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:12:10,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2023-11-19 04:12:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:12:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:12:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:12:10,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:12:10,141 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:12:10,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:12:10,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:12:10,454 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 685 692) no Hoare annotation was computed. [2023-11-19 04:12:10,455 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 685 692) the Hoare annotation is: true [2023-11-19 04:12:10,456 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 626 632) no Hoare annotation was computed. [2023-11-19 04:12:10,457 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 626 632) the Hoare annotation is: true [2023-11-19 04:12:10,459 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 458 469) the Hoare annotation is: true [2023-11-19 04:12:10,464 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2023-11-19 04:12:10,464 INFO L902 garLoopResultBuilder]: At program point L867-2(lines 867 881) the Hoare annotation is: true [2023-11-19 04:12:10,464 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 857 886) no Hoare annotation was computed. [2023-11-19 04:12:10,465 INFO L902 garLoopResultBuilder]: At program point L863(line 863) the Hoare annotation is: true [2023-11-19 04:12:10,466 INFO L899 garLoopResultBuilder]: For program point L863-1(line 863) no Hoare annotation was computed. [2023-11-19 04:12:10,467 INFO L899 garLoopResultBuilder]: For program point L882(lines 857 886) no Hoare annotation was computed. [2023-11-19 04:12:10,467 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2023-11-19 04:12:10,468 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 857 886) the Hoare annotation is: true [2023-11-19 04:12:10,473 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2023-11-19 04:12:10,473 INFO L902 garLoopResultBuilder]: At program point L871-1(lines 871 875) the Hoare annotation is: true [2023-11-19 04:12:10,474 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 655) no Hoare annotation was computed. [2023-11-19 04:12:10,475 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 810) no Hoare annotation was computed. [2023-11-19 04:12:10,476 INFO L899 garLoopResultBuilder]: For program point L800(lines 800 813) no Hoare annotation was computed. [2023-11-19 04:12:10,477 INFO L899 garLoopResultBuilder]: For program point L800-1(lines 792 816) no Hoare annotation was computed. [2023-11-19 04:12:10,477 INFO L899 garLoopResultBuilder]: For program point L606-1(lines 605 624) no Hoare annotation was computed. [2023-11-19 04:12:10,477 INFO L895 garLoopResultBuilder]: At program point L648(line 648) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-19 04:12:10,477 INFO L895 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-11-19 04:12:10,478 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-19 04:12:10,478 INFO L895 garLoopResultBuilder]: At program point L653(line 653) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-11-19 04:12:10,478 INFO L899 garLoopResultBuilder]: For program point L653-1(lines 634 658) no Hoare annotation was computed. [2023-11-19 04:12:10,478 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 602 625) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-11-19 04:12:10,479 INFO L895 garLoopResultBuilder]: At program point L798(line 798) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-11-19 04:12:10,480 INFO L899 garLoopResultBuilder]: For program point L798-1(line 798) no Hoare annotation was computed. [2023-11-19 04:12:10,480 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 625) no Hoare annotation was computed. [2023-11-19 04:12:10,480 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-19 04:12:10,480 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 613 619) no Hoare annotation was computed. [2023-11-19 04:12:10,481 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 650) no Hoare annotation was computed. [2023-11-19 04:12:10,481 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 470 478) the Hoare annotation is: true [2023-11-19 04:12:10,481 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 470 478) no Hoare annotation was computed. [2023-11-19 04:12:10,481 INFO L895 garLoopResultBuilder]: At program point L585(lines 534 586) the Hoare annotation is: false [2023-11-19 04:12:10,482 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 579) no Hoare annotation was computed. [2023-11-19 04:12:10,482 INFO L895 garLoopResultBuilder]: At program point L573-2(lines 565 580) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-19 04:12:10,482 INFO L899 garLoopResultBuilder]: For program point L536(lines 535 584) no Hoare annotation was computed. [2023-11-19 04:12:10,482 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 580) no Hoare annotation was computed. [2023-11-19 04:12:10,483 INFO L895 garLoopResultBuilder]: At program point L557(line 557) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-19 04:12:10,483 INFO L895 garLoopResultBuilder]: At program point L582(lines 535 584) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-19 04:12:10,483 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 778) no Hoare annotation was computed. [2023-11-19 04:12:10,484 INFO L899 garLoopResultBuilder]: For program point L772-1(lines 772 778) no Hoare annotation was computed. [2023-11-19 04:12:10,484 INFO L899 garLoopResultBuilder]: For program point L545(lines 545 551) no Hoare annotation was computed. [2023-11-19 04:12:10,485 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:12:10,487 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 545 551) no Hoare annotation was computed. [2023-11-19 04:12:10,487 INFO L899 garLoopResultBuilder]: For program point L938(lines 938 945) no Hoare annotation was computed. [2023-11-19 04:12:10,487 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:12:10,488 INFO L899 garLoopResultBuilder]: For program point L938-2(lines 938 945) no Hoare annotation was computed. [2023-11-19 04:12:10,488 INFO L899 garLoopResultBuilder]: For program point L588(lines 525 592) no Hoare annotation was computed. [2023-11-19 04:12:10,488 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 561) no Hoare annotation was computed. [2023-11-19 04:12:10,488 INFO L899 garLoopResultBuilder]: For program point L555-1(lines 555 561) no Hoare annotation was computed. [2023-11-19 04:12:10,488 INFO L895 garLoopResultBuilder]: At program point L774(line 774) the Hoare annotation is: false [2023-11-19 04:12:10,489 INFO L895 garLoopResultBuilder]: At program point L547(line 547) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~8#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2023-11-19 04:12:10,489 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2023-11-19 04:12:10,489 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 446 457) the Hoare annotation is: true [2023-11-19 04:12:10,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 04:12:10,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:12:10,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:12:10 BoogieIcfgContainer [2023-11-19 04:12:10,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:12:10,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:12:10,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:12:10,514 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:12:10,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:08" (3/4) ... [2023-11-19 04:12:10,518 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:12:10,521 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-11-19 04:12:10,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 04:12:10,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 04:12:10,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 04:12:10,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 04:12:10,522 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 04:12:10,523 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 04:12:10,537 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-11-19 04:12:10,538 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 04:12:10,539 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:12:10,539 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:12:10,540 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:12:10,581 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-11-19 04:12:10,625 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) [2023-11-19 04:12:10,686 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:12:10,686 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:12:10,687 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:12:10,687 INFO L158 Benchmark]: Toolchain (without parser) took 3861.63ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 60.9MB in the end (delta: 35.9MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-19 04:12:10,688 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 76.4MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:10,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.08ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:12:10,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.46ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:10,690 INFO L158 Benchmark]: Boogie Preprocessor took 41.26ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 74.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:10,691 INFO L158 Benchmark]: RCFGBuilder took 559.03ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 51.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:10,691 INFO L158 Benchmark]: TraceAbstraction took 2370.54ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 68.3MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:10,691 INFO L158 Benchmark]: Witness Printer took 173.19ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 60.9MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 04:12:10,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 76.4MB in the end (delta: 29.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.08ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.46ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 75.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.26ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 74.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.03ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 51.5MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2370.54ms. Allocated memory is still 142.6MB. Free memory was 50.9MB in the beginning and 68.3MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 173.19ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 60.9MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [58] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [424] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [593] - GenericResultAtLocation [Line: 791]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [791] - GenericResultAtLocation [Line: 817]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [817] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [855] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 155 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 457 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 207 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 155 PreInvPairs, 175 NumberOfFragments, 88 HoareAnnotationTreeSize, 155 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 594 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (((pumpRunning == 0) && (tmp == 1)) && (splverifierCounter == 0)) - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: (!((\old(pumpRunning) == 0)) || (pumpRunning == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-19 04:12:10,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bf53237-a22a-4fb3-9880-88154f87a781/bin/utaipan-verify-t7M7D8N6sZ/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